Source: https://www.choise-efrc.org/curricula-vitae.html
Timestamp: 2019-04-25 22:13:38+00:00

Document:
To learn more about the expertise and backgrounds of CHOISE scientists, read their curricula vitae (CVs).
Associate Director, Center for Advanced Solar Photophysics, NREL. Research on multiple exciton generation within quantum dots (QDs) for enhanced solar energy conversion strategies, 2011–.
Research Scientist, Renewable and Sustainable Energy Institute, U. of Colorado Boulder, 2013–. Research on electronically coupled QD arrays.
Principal Scientist, Chemical and Materials Sciences, NREL. Development and use of ultrafast spectroscopic probes to interfacial carrier dynamics within solar energy conversion architectures, 2015–.
Scientist, Chemical and Materials Sciences, NREL. Measurements of multiple exciton yields in colloidal QDs, 2008–2015.
Scientist, Chemical and Materials Sciences, NREL. Development and use of time-resolved THz spectroscopy (non-contact probe of conductivity) to investigate carrier generation and transport within novel solar energy systems, 2005–2008.
Kroupa, D.M., M. Voros, N. Brawand, B. McNichols, E.M. Miller, J. Gu, A.J. Nozik, A. Sellinger, G. Galli, M.C. Beard, "Tuning Colloidal Quantum Dot Band Edge Positions through Solution-Phase Surface Chemistry Modification", Nature Communications, 8, 15257, 2017 doi:10.1038/ncomms15257.
Li, Z., C. Xiao, Y. Yang, S. Harvey, D. Kim, J.A. Christians, M. Yang, P. Schulz, C-S. Jiang, J.M. Luther, J. Berry, M.C. Beard, M.M. Al-Jassim, K. Zhu, "Extrinsic ion migration in perovskite solar cells", EES, 10, 1234, 2017, doi:10.1039/c7ee00358g.
Sanehira, E.M., A.R. Marshall, J.A. Christians, S.P. Harvey, P.N. Ciesielski, L.M. Wheeler, P. Schulz, L. Y. Lin, M.C. Beard, J.M. Luther, "Enhanced mobility CsPbI2 quantum dot arrays for high efficiency, high voltage photovoltaic cells", Science Advances, 3, eaao4204, 2017, doi:10.1126/sciadv.aao4204.
Yan, Y., R. W. Crisp, J. Gu, B.D. Chernomodik, G.F. Pach, A.R. Marshall, J. A. Turner, M.C. Beard, "Multiple Exciton Generation for Photoelectrochemical Hydrogen Evolution Reactions with Quantum Yields Exceeding 100%", 2, 17052, Nature Energy, 2017, doi:10.1038/nenergy.2017.52.
Yang, Y., M. Yang, D.T. Moore, Y. Yan, E.M. Miller, K. Zhu, M.C. Beard, "Top and Bottom Surfaces Limit Carrier Lifetime in Lead Iodide Perovskite Films", Nature Energy, 2, 16207, 2017, doi:10.1038/nenergy.2016.207.
Yang, Y., M. Yang, K. Zhu, J.C. Johnson, J. J. Berry, J. van de Lagemaat, and M. C. Beard, "Large Polarization-Dependent Optical Stark Effect in Lead Iodide Perovksites", Nature Comm., 7, 12613, 2016, doi:10.1038/ncomms12613.
Yang, Y., D. Ostrowski, R. France, K. Zhu, J. van de Lagemaat, J.M. Luther, M.C. Beard, "Observation of a Hot-Phonon Bottleneck in Lead Iodide Perovskites", Nature Photonics, 10, 53-59, 2016 doi: 10.1038/nphoton.2015.213.
Yang, Y., J. Gu, J.L. Young, E.M. Miller, J. Turner, N. Neale, M.C. Beard, "Semiconductor interfacial carrier dynamics via photo-induced electric fields", Science, 350, 1061-1065, 2015 doi: 10.1126/science.aad3459.
Yang, Y., Y. Yan, M. Yang, S. Choi, K. Zhu, J. M. Luther, M.C. Beard, "Low Surface Recombination Velocity in Solution-Grown CH3HN3PbBr3 Perovskite Single Crystal", Nature Comm., 6, 7961, 2015, doi: 10.1038/ncomms8961.
Yang, Y., M. Yang, Z. Li, R. Crisp, K. Zhu, M.C. Beard "Comparison of Recombination Dynamics in CH3NH3PbBr3 and CH3NH3PbI3 Perovskite Films: Influence of Exciton Binding Energy", J. Phys. Chem. Lett.,6, 4688-4692, 2015 doi: 10.1021/acs.jpclett.5b02290.
Team lead hybrid perovskite solar cell program.
inorganic interfaces for optoelectronic devices and systems.
Research on growth and basic physical properties of transparent conducting oxides for photovoltaic and display technologies, including both single composition and high-throughput combinatorial approaches.
Research focusing on the development and application of high resolution heterodyne spectroscopic techniques to electro-optical systems, including self-assembled quantum dots and III-V semiconductor waveguide structures.
Research focusing on the development and application of cavity enhanced spectroscopic techniques to electro-optical systems, including self-assembled quantum dots and III-V 1-D photonic crystals.
Research on spintronic and nanostructured semiconductor materials with emphasis on the growth, development, design and characterization of magnetic semiconductors, semiconductor/metal hybrid material system, and optically active semiconductor nanostructures for studies of spin dependent (spintronic) phenomena.
Research conducted with Jacek K. Furdyna and John Ross Buschert on X-ray characterization of II-VI based semiconductor heterostructures.
K. Zhu, W. Zhou, and J. J. Berry. 2016. "Effect of Water Vapor, Temperature, and Rapid Annealing on Formamidinium Lead Triiodide Perovskite Crystallization." ACS Energy Lett. (May): 155–161.
Berry, J., T. Buonassisi, D. A. Egger, G. Hodes, L. Kronik, Y. L. Loo, and I. Lubomirsky, et al. 2015. "Hybrid Organic-Inorganic Perovskites (HOIPs): Opportunities and Challenges." Adv. Mater. (July).
Ihly, R., A. M. Dowgiallo, M. Yang, P. Schulz, N. J. Stanton, O. G. Reid, A. J. Ferguson, K. Zhu, J. J. Berry, and J. L. Blackburn. 2016. "Efficient charge extraction and slow recombination in organic-inorganic perovskites capped with semiconducting single-walled carbon nanotubes." Energy Environ. Sci. (Feb.): 1–11.
Malajovich, I., J. J. Berry, N. Samarth, and D. D. Awschalom. 2001."Persistent sourcing of coherent spins for multifunctional semiconductor spintronics." Nature 411 (6839): 770–772.
Pérez-del-Rey, D., D. Forgács, E. M. Hutter, T. J. Savenije, D. Nordlund, P. Schulz, J. J. Berry, M. Sessolo, and H. J. Bolink. 2016. "Strontium Insertion in Methylammonium Lead Iodide: Long Charge Carrier Lifetime and High Fill-Factor Solar Cells." Adv. Mater. (Sept.): 1–7.
Schelhas, L. T., J. A. Christians, J. J. Berry, M. F. Toney, C. J. Tassone, J. M. Luther, and K. H. Stone. 2016. "Monitoring a Silent Phase Transition in CH3NH3PbI3 Solar Cells via Operando X-ray Diffraction." ACS Energy Lett. 1 (5):1007–1012.
Schulz, P., A. M. Dowgiallo, M. Yang, K. Zhu, J. L. Blackburn, and J. J. Berry. 2016. "Charge Transfer Dynamics between Carbon Nanotubes and Hybrid Organic Metal Halide Perovskite Films." J. Phys. Chem. Lett. (Jan.): 418–425.
Steirer, K. X., P. Schulz, G. Teeter, V. Stevanovic, M. Yang, K. Zhu, and J. J. Berry. 2016. "Defect Tolerance in Methylammonium Lead Triiodide Perovskite." ACS Energy Lett.(July): 360–366.
Yang, M., K. Zhu, J. C. Johnson, J. J. Berry, J. van de Lagemaat, Y. Yang, and M. C. Beard. 2016. "Large polarization-dependent exciton optical Stark effect in lead iodide perovskites." Nat Comms 7 (Aug.): 1–5.
Yang, M., T. Zhang, P. Schulz, Z. Li, G. Li, D. H. Kim, N. Guo, J. J. Berry, K. Zhu, and Y. Zhao. 2016. "Facile fabrication of large-grain CH3NH3PbI3-xBrx films for high-efficiency solar cells via CH3NH3Br-selective Ostwald ripening." Nat Comms 7 (July): 1–9.
Manage a group of full-time scientists, post-doctoral researchers, and graduate students. Responsible for project management/oversight, business development, strategic research directions, hiring/recruiting, personnel and performance management, mentoring and professional development, capability management and development, and safety and training. Group size varies but is typically in the range of 20 to 25.
Blackburn, Jeffrey L., Andrew J. Ferguson, Chungyeon Cho, Jaime C. Grunlan, Carbon Nanotube-based Thermoelectric Materials and Devices. Advanced Materials 2017, 30, 1704386. DOI: 10.1002/adma.201704386 (Invited Review, VIP article and front cover).
Spring Meetings of the Electrochemical Society: Lead Organizer for yearly ECS symposium "Carbon Nanostructures for Energy Conversion"
Served as a "Carbon Nanotube Expert" for the ANSI-Accredited U.S. TAG ISO/TC229 working group 3, "Nanomaterial Characterization Methods" – a working group devoted to developing standards in nanomaterial characterization methods for nano-electronic applications.
Electronic structure theory, HPC scalability, inorganic and organic-inorg. semiconductors, interfaces, nanomaterials, mol. structure & spectroscopy.
Electronic structure theory, HPC scalability, theory of metal and semiconductor interfaces, molecular structure & spectroscopy.
Liu, C., Huhn, W., Du, K.-Z., Vazquez-Mayagoitia, A., Dirkes, D., You, W., Kanai, Y., Mitzi, D.B., Blum, V. (2018). "Tunable Semiconductors: Control over Carrier States and Excitations in Layered Hybrid Organic-Inorganic Perovskites," arXiv:1803.07230 [cond-mat.mtrl-sci], https://arxiv.org/abs/1803.07230 .
Lead organizer or co-organizer of 7 Hands-On Workshops (2009-2018): "DFT and Beyond," 10 days, 60-80 students & post-docs, Berlin, Trieste, Los Angeles, Beijing.
Lead organizer or co-organizer of 16 other conferences, workshops, invited & focus sessions at society meetings including at APS March Meetings 2015, 2016, 2017.
Service in community organizations and societies: 2013-14 Member (2014: Chair), Nomination Committee, APS-DCOMP; 2011-2017 Member, "N-scaling" committee, psi-k.org; 2018- Member "Software Engineering" Working Group, psi-k.org.
Community based scientific software: Coordinator and lead developer (since 2004), FHI-aims electronic structure code, globally distributed development & users. Coordinator, "ELSI", http://elsi-interchange.org; Advisory board, CECAM Electr. Structure Library.
Reviewer for Journals, Grant Proposals, and Consortia, including Phys. Commun. (specialist editor), Phy. Rev. Lett., Phys. Rev. B, J. Am. Chem. Soc., J. Chem. Phys., NSF, DOE, ACS-PRF, and others.
Bi, C., Q. Wang, Y. Shao, Y. Yuan, Z. Xiao and J. Huang. 2015. "Nonwetting Surface Driven High Aspect Ratio Crystalline Grain Growth for Efficient Hybrid Perovskite Solar Cells." Nature Communications 6: 7747.
Dong, Q., Y. Fang, Y. Shao, P. Mulligan, J. Qiu, L. Cao, and J. Huang. 2015. "Electron-Hole Diffusion Lengths > 175 μm in Solution Grown CH3NH3PbI3 Single Crystals." Science 347: 967–970.
Huang. J., Y. Yuan, Y. Shao and Y. Yan. 2017. "Advance in Understanding the Physical Properties of Hybrid Perovskites for Photovoltaic Applications." Nat. Rev. Mater. 2: 17042.
Shao, Y., Z. Xiao, C. Bi, Y. Yuan and J. Huang. 2014. "Origin and Elimination of Photocurrent Hysteresis by Fullerene Passivation in CH3NH3PbI3 Planar Heterojunction Solar Cells." Nature Communications 5: 5784.
Wei, H., D. DeSantis, W. Wei, Y. Deng, D. Guo, T. J. Savenije, L. Cao, and J. Huang. 2017. "Dopant Compensation in Alloyed CH3NH3PbBr3-xClx Perovskite Single Crystals for Gamma-ray Spectroscopy." Nature Materials 16: 826.
Xiao, Z., Y. Yuan, Y. Shao, Q. Wang, Q. Dong, C. Bi, P. Sharma, A. Gruverman and J. Huang. 2015. "Giant Switchable Photovoltaic Effect in Organometal Trihalide Perovskite Devices." Nature Materials 14: 193–198.
Xiao, Z., C. Bi, Y. Shao, Q. Dong, Q. Wang, Y. Yuan, C. Wang, Y. Gao and J. Huang. 2014. "Efficient, High Yield Perovskite Photovoltaic Devices Grown by Interdiffusion of Solution-Processed Precursor Stacking Layers." Energy Environ. Sci. 7 (8): 2619–2623.
Zhao, J., X. Zheng, Y. Deng, T. Li, Y. Shao, A. Gruverman, J. Shield and J. Huang. 2016. "Is Cu a Stable Electrode Material in Hybrid Perovskite Solar Cells for a 30-Year Lifetime?" Energy Environ. Sci. 9: 3650–3656.
Zheng, X., B. Chen, J. Dai, Y. Fang, Y. Bai, Y. Lin, H. Wei, X. C. Zeng and J. Huang. 2017. "Defect Passivation using Quaternary Ammonium Halides for High Efficiency Perovskite Solar Cells." Nature Energy 2: 17102.
Han, Wei, K. Pi, K. M. McCreary, Yan Li, Jared J. I. Wong, A. G. Swartz, and R. K. Kawakami. 2010. "Tunneling spin injection into single layer Graphene." Phys. Rev. Lett. 105: 167202.
Li, Yan, N. Sinitsyn, D. L. Smith, D. Reuter, A. D. Wieck, D. R. Yakovlev, M. Bayer, and S. A. Crooker. 2012."Intrinsic spin fluctuations reveal the dynamical response of coupled hole—nuclear spins in (In,Ga) as quantum dots." Phys. Rev. Lett. 108: 186603.
Li, Yan, Wei Han, A. G. Swartz, K. Pi, J. J. I. Wong, S. Mack, D. D. Awschalom, and R. K. Kawakami. 2010. "Oscillatory spin polarization and Magneto-optic Kerr Effect in Fe3O4 thin films on GaAs(001)." Phys. Rev. Lett. 105: 167203.
Odenthal, Patrick, William Talmadge, Nathan Gundlach, Ruizhi Wang, Chuang Zhang, Dali Sun, Zhi-Gang Yu, Z. Valy Vardeny, and Yan S. Li. 2017. "Spin-polarized exciton quantum beating in hybrid organic-inorganic perovskites." Nature Physics 13: 894.
Sinitsyn, N. A., Yan Li, S. A. Crooker, A. Saxena, and D. L. Smith. 2012. "Role of nuclear quadrupole coupling on decoherence and relaxation of central spins in quantum dots." Phys. Rev. Lett. 109: 166605.
Wang, W. H., K. Pi, Y. Li, Y. F. Chiang, P. Wei, J. Shi, and R. K. Kawakami. 2008. "Magnetotransport properties of mesoscopic graphite spin valves." Phys. Rev. B 77: 020402.
Xing ,Wenyu, Yangyang Chen, Patrick M. Odenthal, Xiao Zhang, Wei Yuan, Tang Su, Qi Song, et al. 2017. "Electric Field Effect in Multilayer Cr2Ge2Te6: a Ferromagnetic Two-Dimensional Material." 2D Materials 4: 024009.
Yan Li, Y. Chye, Y. F. Chiang, K. Pi, W. H. Wang, J. M. Stephens, S. Mack, D. D. Awschalom and R. K. Kawakami. 2008. "Inversion of Ferromagnetic Proximity Polarization by MgO Interlayers." Phys. Rev. Lett. 100: 237205.
Zhang, Shixiong, Shadi A. Dayeh, Yan Li, Scott A. Crooker, Darryl L. Smith, and S. T. Picraux. 2013. "Electrical spin injection and detection in silicon nanowires through oxide tunnel barriers." Nano Lett. 13: 430.
Postdoctoral Fellow, Paul Alivisatos Group, LBNL, 2008–2009.
Developed synthesis for various new nanocrystals.
Electronic coupling of Pb-Chalcogenide nanomaterials for Multi-exciton generation.
Christians, J. A., J. J. Berry, J. M. and Luther et al. Forthcoming. "Tailored interfaces of unencapsulated perovskite solar cells for >1,000 hour operational stability." Nature Energy.
Luther, J. M., P. K. Jain, T. Ewers, and A. P. Alivisatos. 2011. "Localized surface plasmon resonances arising from free carriers in doped quantum dots." Nature materials 10 (5): 361–366.
Luther. J. M., and J. M. Pietryga. 2013. "Stoichiometry control in quantum dots: A viable analog to impurity doping of bulk materials." ACS nano 7 (3): 1845–1849.
Nanayakkara, S. U., J. van de Lagemaat, and J. M. Luther. 2015. "Scanning Probe Characterization of Heterostructured Colloidal Nanomaterials." Chemical Reviews 115 (16): 8157–8181.
Nenon , D. P., J. A. Christians, L. M. Wheeler, et al., J.M. Luther. 2016. "Structural and chemical evolution of methylammonium lead halide perovskites during thermal processing from solution." Energy & Environmental Science 9: 2072–2082.
Sanehira, E. M., B. J. Tremolet de Villers, P. Schulz, et al., J.M. Luther. 2016. "The Influence of Electrode Interfaces on the Stability of Perovskite Solar Cells: Reduced Degradation using MoOx/Al for Hole Collection." ACS Energy Lett.1 (1): 38–45.
Sanehira, E. M., J. M. Luther, et al. 2017. "Enhanced mobility CsPbI3 quantum dot arrays for record-efficiency, high-voltage photovoltaic cells." Science Advances.
Schelhas, L. T., J. A. Christians, J. J. Berry, M. F. Toney, C. J. Tassone, J. M. Luther, K. H. Stone. 2017. "Monitoring a Silent Phase Transition in CH3NH3PbI3 Solar Cells via Operando X-ray Diffraction." ACS Energy Letters 1 (5): 1007–1012.
Semonin, O. E., J. M. Luther, S. Choi, H. Y. Chen, J. Gao, A. J. Nozik, and M. C. Beard. 2011. "Peak external photocurrent quantum efficiency exceeding 100% via MEG in a quantum dot solar cell." Science, 334 (6062): 1530–1533.
Yang, Y., Y. Yan, M. Yang, S. Choi, K. Zhu, J. M. Luther, and M. C. Beard. 2015. "Low surface recombination velocity in solution-grown CH3NH3PbBr3 perovskite single crystal." Nature Comm. 6.
"Metal halide solid-state surface treatment for nanocrystal materials," J.M. Luther, R. Crisp, M.C. Beard, US Patent 9,324,562.
"Secondary treatment of films of colloidal quantum dots for optoelectronics and devices produced thereby," O.E. Semonin, J.M. Luther, M.C. Beard, H.Y. Chen, US Patent 8,685,781.
Program targets development of sustainable energy conversion/storage materials, most notably in the area of photovoltaic (PV) and photoelectrochemical (PEC) devices. Current focus is on developing the solid-state chemistry of new halide and chalcogenide semiconductors, including organic-inorganic perovskites, for application in PV/PEC absorbers, LED devices and other optoelectronic applications.
Initiated and managed a multi-company (TOK, Solar Frontier, IBM) program to develop a low-cost high-throughput approach to deposit thin-film chalcogenide-based absorber layers for high-efficiency solar cells. The program demonstrated solution-deposited Cu(In,Ga)(S,Se)2 (CIGS) solar cells with certified power conversion efficiency (PCE) of >15% and Cu2ZnSn(S,Se)4 (CZTSSe) devices with >12% PCE, which represents the world record performance for this earth abundant.
Developed a lab and program to study structure-property relationships in organic-inorganic perovskites and other solution-processed high-mobility inorganic semiconductors (e.g., for solar cells, TFTs, LEDs). Studies included examination of solid-state and solution-based synthetic techniques for targeted complex materials, single crystal growth and thin-film deposition processes (vapor phase, melt- and solution-based), crystal structure refinement, measurement of optical/magnetic/electrical properties.
Du, K. Z., Q. Tu, X. Zhang, Q. Han, J. Liu, S. Zauscher, and D. B. Mitzi. 2017. "Two-Dimensional Lead(II) Halide-Based Hybrid Perovskites Templated by Acene Alkylamines: Crystal Structures, Optical Properties, and Piezoelectricity." Inorg. Chem. 56: 9291–9302. DOI: 10.1021/acs.inorgchem.7b01094.
Kagan, C. R., D. B. Mitzi, and C. D. Dimitrakopoulos. 1999. "Organic-Inorganic Hybrid Materials as Semiconducting Channels in Thin-Film Field-Effect Transistors." Science 286: 945–947. DOI:10.1126/science.286.5441.945.
Mitzi, D. B. 2001. "Templating and Structural Engineering in Organic-Inorganic Perovskites." J. Chem. Soc. Dalton Trans. 1–12. DOI: 10.1039/B007070J.
Mitzi, D. B., C. A. Feild, W. T. A. Harrison, and A. M. Guloy. 1994. "Conducting Tin Halides with a Layered Organic-Based Perovskite Structure." Nature 369: 467–469. DOI:10.1038/369467a0.
Mitzi, D. B., K. Chondroudis, and C. R. Kagan. "Organic-Inorganic Electronics." 2001. IBM J. Res. and Dev. 45: 29–45. DOI: 10.1147/rd.451.0029.
Mitzi. D. B. 2001. "Thin-Film Deposition of Organic-Inorganic Hybrid Materials." Chem. Mater. 13 (10): 3283–3298. DOI: 10.1021/cm0101677.
Saparov, B., and D. B. Mitzi. 2016. "Organic-Inorganic Perovskites: Structural Versatility for Functional Materials Design." Chemical Reviews 116: 4558–4596. DOI: 10.1021/acs.chemrev.5b00715.
Saparov, B., F. Hong, J. P. Sun, H. S. Duan, W. Meng, S. Cameron, I. G. Hill, Y. Yan, and D. B. Mitzi. 2015. "Thin-film preparation and characterization of Cs3Sb2I9: A lead-free layered perovskite semiconductor." Chem. Mater. 27: 5622–5632. DOI: 10.1021/acs.chemmater.5b01989.
Book editor: "Solution Processing of Inorganic Materials," John Wiley & Sons, 2009 (497 p).
2007–2012 VP of Engineering, HOYA Corp USA HOYA Xponent Division. Responsible for design and process engineering of HOYA Xponent's fiber-optic products based on hybrid integration of high speed active InP devices on silica-on-silicon planar lightwave circuit platform.
9,178,622 Cross-talk reduction in a bidirectional optoelectronic device, Ruiz; Araceli, Sercel; Peter C., Paslaski; Joel S., Wyss; Rolf A., Nov. 3, 2015.
9,151,664 Submount for optoelectronic, optical, or photonic components, Wyss; Rolf A., Sercel; Peter C., Oct. 6, 2015.
8,867,872 Optical waveguide splitter on a waveguide substrate for attenuating a light source, Sercel; Peter C., Sonehara; Toshiaki, Wyss; Rolf A. Oct. 21, 2014.
8,861,970 Cross-talk reduction in a bidirectional optoelectronic device, Paslaski; Joel S., Ruiz; Araceli, Sercel; Peter C., Wyss; Rolf A. Oct. 14, 2014.
7,625,132 Packaging for a fiber-coupled optical device, Benzoni; Albert M., Paslaski; Joel S., Sercel; Peter C., Dec. 1, 2009.
Barraza, E. T., W. A. Dunlap-Shohl, D. B. Mitzi, and A. D. Stiff-Roberts. 2017. "Deposition of Methylammonium Lead Triiodide by Resonant Infrared Matrix-Assisted Pulsed Laser Evaporation." Journal of Electronic Materials (September). DOI: 10.1007/s11664-017-5814-0.
Bhattacharya, P., S. Ghosh, and A. D. Stiff-Roberts. 2004. "Quantum dot opto-electronic devices." in Annual Review of Materials Research, edited by D. R. Clarke and M. Rühle, 34: 1–40. Palo Alto: Annual Reviews.
Ge, W. Y., A. Atewologun and A. D. Stiff-Roberts. 2015. "Hybrid nanocomposite thin films deposited by emulsion-based resonant infrared matrix-assisted pulsed laser evaporation for photovoltaic application." Organic Electronics 22 (March): 98–107.
Ge, W., N. K. Li, R. D. McCormick, E. Lichtenberg, Y. G. Yingling, and A. D. Stiff-Roberts. 2016. "Emulsion-based RIR-MAPLE deposition of conjugated polymers: primary solvent effect and its implications on organic solar cell performance." ACS Applied Materials & Interfaces 8 (July): 19494–19506.
Pate, R, and A. D. Stiff-Roberts. 2009. "The impact of laser-target absorption depth on the surface and internal morphology of matrix-assisted pulsed laser evaporated conjugated polymer thin films." Chemical Physics Letters 477 (August): 406–410.
Yu, Q., W. Ge, A. Atewologun, A. D. Stiff-Roberts, and G. P. López. 2015. "Antimicrobial and Bacteria-Releasing Multifunctional Surfaces: Oligo (p-phenylene-ethynylene)/Poly (N-isopropylacrylamide) Films Deposited by RIR-MAPLE." Colloids and Surfaces B: Biointerfaces 126 (February): 328–334.
Director and Instructor, Student Engineers Network, Strengthening Opportunities in Research (SENSOR) Saturday Academy, 2007 & 2014-Present: The SENSOR Saturday Academy is an outreach program that Stiff-Roberts created as part of the 2006 NSF CAREER Award, and the program has been offered with support by the Burroughs Welcome Fund. The program serves a single cohort of 24 8th graders from underrepresented minority groups during the entire academic year. Instruction includes the engineering design process and the operation of different sensors for water quality. The Academy also features enrichment opportunities such as lab and campus tours, research presentations, and panel discussions.
ECE 341L–Solar Cells. Stiff-Roberts created a new course that covers the fundamental materials and device physics related to inorganic and organic solar cells. The course is unique in that it has minimal prerequisites so that it can introduce renewable solar energy to a wide range of students from different disciplines but interested in energy applications. The course includes an extensive lab component in which students fabricate and characterize organic solar cells to investigate research questions related to the material selection or device fabrication.
Manage operations of ten SSRL beamlines and beamline operations group.
Develop and implement energy sciences strategy.
Conduct research and develop strategy in advanced X-ray techniques for energy sciences.
Conduct research in advanced X-ray techniques for energy sciences, including photovoltaics and catalysis.
Conduct research on electrochemical interfaces, polymer thin films and magnetic storage.
Berry, J. J., T. Buonassisi, D. A. Egger, G. Hodes, L. Kronik, Y. L. Loo, I. Lubomirsky, et al. 2015. "Hybrid Organic-Inorganic Perovskites (HOIPs): Opportunities and Challenges." Adv. Mater. 27: 5102–5112. DOI: 10.1002/adma.201502294.
Pool, V. L., A. Gold-Parker, M. D. McGehee, and M. F. Toney. 2015. "Chlorine in PbCl2-Derived Hybrid-Perovskite Solar Absorbers." Chem. Mater. 27: 7240–7243. DOI: 10.1021/acs.chemmater.5b03581.
Pool, V.L., B. Dou, D.G. Van Campen, T.R. Klein, F.S. Barnes, S.E. Shaheen, Md. I. Ahmad, M. F. A. M. van Hest, and M. F. Toney. 2017. "Thermal engineering of FAPbI3 perovskite material via radiative thermal annealing and in situ XRD." Nature Comms 8: 14075. DOI: 10.1038/ncomms14075.
Prasanna, R, A Gold-Parker, T. Leijtens, B. Conings, A. Babayigit, H. G. Boyen, M. F. Toney, and M. D. McGehee. 2017. "Band Gap Tuning via Lattice Contraction and Octahedral Tilting in Perovskite Materials for Photovoltaics." J Amer Chem Soc 139: 11117–11124. DOI: 10.1021/jacs.7b04981.
Schelhas, L.T., K. H. Stone, S. P. Harvey, D. Zakhidov, A. Salleo, G. Teeter, I. L. Repins, M. F. Toney. 2017. "Point defects in Cu2ZnSnSe4 (CZTSe): Resonant x-ray diffraction study of the low temperature order/disorder transition." Physica Status Solidi B 254, 1700156.
Sharenko. A., and M. F. Toney. 2016. "Relationships between Lead Halide Perovskite Thin-Film Fabrication, Morphology, and Performance in Solar Cells." J. Amer. Chem. Soc. 138: 463–470. DOI: 10.1021/jacs.5b10723.
Sharenko. A., C. Mackeen, L. Jewell, F. Bridges, and M. F. Toney. 2017. "Evolution of Iodoplumbate Complexes in Methylammonium Lead Iodide Perovskite Precursor Solutions." Chem Mater 29: 1315–1320. DOI: 10.1021/acs.chemmater.6b04917.
Shi, P. F. Ndione, L. Y. Lim, D. Sokaras, T. C. Weng, A. R. Nagaraja, A. G. Karydas, J. D. Perkins, et al. 2014. "Self-Doping and Electrical Conductivity in Spinel Oxides: Experimental Validation of Doping Rules." Y Chemistry of Materials 26: 1867–1873. DOI: 10.1021/cm404031k.
Strasser, P., S. Koh, T. Anniyev, J. Greeley, K. More, C. Yu, Z. Liu, et al. 2010. "Lattice-strain control of exceptional activity in dealloyed fuel cell catalysts." Nature Chemistry 2: 454–460.
Unger , E. L., A. R. Bowring, C. J. Tassone, V. L. Pool, A. Gold-Parker, R. Cheacharoen, K. H. Stone, E. T. Hoke, M. F. Toney, and M. D. McGehee. 2014. "Chloride in Lead Chloride-Derived Organo-Metal Halides for Perovskite-Absorber Solar Cells." Chem. Mater. 26: 7158–7165. DOI: 10.1021/cm503828b.
Panel lead for DOE Basic Research Needs for Energy Storage, 2017.
Member of External Advisory Board of Center for Electrochemical Energy Storage Energy Frontier Research Center, 2013 - present.
Lafalce, E., C. Zhang, X. Liu, and Z. V. Vardeny. 2016. "On the role of intrinsic ions accumulation in the photocurrent and photo-capacitive responses of MAPbBr3 photodetectors." ACS Applied Materials and Interfaces 8 (51): 35447. 10.1021/acsami.6b11925.
Lafalce, E., C. Zhang, Y. Zhai, D. Sun and Z. V. Vardeny. 2016. "Reduced lasing thresholds, enhanced emission and increased optical gain of nano-crystalline MAPbBr3 films via anti-solvent treatment." J. Appl. Phys. 120: 143101. doi: 10.1063/1.4964417 2016.
Nguyen, T. D., E. Ehrenfreund, and Z. V. Vardeny. 2012. "Spin-polarized organic light emitting diode based on a novel bipolar spin-valve." Science 337: 204.
Odenthal, P., W. Talmadge, N. Gundlach, R. Wang, C. Zhang, D. Sun, Z. G. Yu, Z. V. Vardeny and Y. S. Li. 2017. "Spin-polarized exciton quantum beating in hybrid organic-inorganic perovskites." Nature Physics 29 (May). http://dx.doi.org/10.1038/nphys4145.
Sheng, C. X., Chuang Zhang, Yaxin Zhai, Kamil Mielczarek, Weiwei Wang, Wanli Ma, Anvar Zakhidov, and Z. Valy Vardeny. 2015. "Excitons versus Free Carriers Photogeneration in Organometal Trihalide Perovskites Probed by Broadband Ultrafast Polarization Memory Dynamics." Phys. Rev. Lett. 114: 116601. doi:10.1103/PhysRevLett.114.116601.
Sun, D., K. J. van Schooten, H. Malissa, M. Kavand, C. Zhang, C. Boehme, and Z. V. Vardeny. 2016. "Inverse spin Hall effect from pulsed spin current in organic semiconductors with tunable spin-orbit coupling." Nature Materials 15 (April): 863.
Zhai, Yaxin, S. Baniya, C. Zhang, C.-X. Sheng, E. Ehrenfreund, and Z. V. Vardeny. 2017. "Giant Rashba-Splitting in 2D organic-inorganic halide perovskites measured by transient spectroscopies." Science Advances 3: e1700704.
Zhang, C., D. Sun, C-X. Sheng, Y. Zhai, K. Mielczarek, A. Zakhidov, and Z. V. Vardeny. 2015. "Magnetic field effects in hybrid perovskite devices." Nature Physics 11: 427.
Zhang, Chuang, Dali Sun, Xiaojie Liu, Chuan-Xiang Sheng and Zeev Valy Vardeny. 2017. "Temperature-Dependent Electric Field Poling Effects in CH3NH3PbI3 Optoelectronic Devices." Journal of Physical Chemistry Letters 8: 1429. 10.1021/acs.jpclett.7b00353.
Ke, W., G. Fang, Q. Liu, L. Xiong, P. Qin, H. Tao, J. Wang, et al. 2015. "Low-temperature solution-processed tin oxide as an alternative electron transporting layer for efficient perovskite solar cells." J. Am. Chem. Soc. 137: 6730–6733.
Liao, W., D. Zhao, Y. Yu, C. R. Grice, C. Wang, A. J. Cimaroli, P. Schulz, et al. 2016. "Lead-Free Inverted Planar Formamidinium Tin Triiodide Perovskite Solar Cells Achieving Power Conversion Efficiencies up to 6.22%." Adv. Mater. 10: 1602992.
Liao, W., D. Zhao, Y. Yu, N. Shrestha, K. Ghimire, C. R. Grice, and C. Wang. 2016. "Fabrication of Efficient Low-Bandgap Perovskite Solar Cells by Combining Formamidinium Tin Iodide with Methylammo-nium Lead Iodide." J. Am. Chem. Soc. 138: 12360–12363.
Wang, W., D. Zhao, F. Zhang, L. Li, M. Du, C. Wang, Y. Yu, et al. 2017. "Highly sensitive low-bandgap perovskite photodetectors with response from ultraviolet to the near-infrared region." Adv. Funct. Mater. 10: 1703953.
Xiao, Z., K. Z. Du, W. Meng, J. Wang, D. B. Mitzi, and Y. Yan. 2017. "Intrinsic instability of Cs2In(I)M(III)X6 (M= Bi, Sb; X = Halogen) double perovskites: A combined density-functional theory and experimental study." J. Am. Chem. Soc. 139: 6054–6057.
Xiao, Z., W. Meng, J. Wang, and Y. Yan. 2016. "Thermodynamic Stability and Defect Chemistry of Bismuth-Based Lead-Free Double Perovskites." ChemSusChem 9: 2628–2633.
Xiao, Z., W. Meng, J. Wang, D. Mitzi, and Y. Yan. 2017. "Searching for promising new perovskite-based photovoltaic absorbers: the importance of electronic dimensionality." Materials Horizon 4: 206–216.
Xiao, Zewen, Weiwei Meng, Jianbo Wang, and Yanfa Yan. 2016. "Defect properties of the two-dimensional (CH3NH3)2Pb(SCN)2I2 perovskite: a density-functional theory study." Phys. Chem. Chem. Phys. 18: 25786–25790.
You, Y., W. Q. Liao, D. Zhao, H. Y. Ye, Y. Zhang, Q. Zhou, X. Niu, et al. 2017. "An organic-inorganic perovskite ferroelectric with large piezoelectric response." Science 357: 306–309.
Zhao, D., Y. Yu, C. Wang, W. Liao, N. Shrestha, C. R. Grice, A. J. Cimaroli, et al. 2017. "Low-bandgap mixed tin–lead iodide perovskite absorbers with long carrier lifetimes for all-perovskite tandem solar cells." Nature Energy 2: 17018.
Design and development of cost-effective and highly efficient photoactive materials for fundamental organic synthesis.
Yang, Y.; Yan, Y.; Choi, S.; Zhu, K.; Beard, M.; "Low Surface Recombination Velocity in Solution Grown CH3NH3PbBr3 Perovskite Single Crystal" Nature Comm. 2015, 6, 7961.
Reviewer for prestigious academic journals including: J. Am. Chem. Soc.; Energy Env. Sci.; ACS Catalysis; Green Chemistry; J. Materials Chemistry, J. Power Sources et al.
NSF REU student advisor at NJIT in summer 2017 and as American Chemical Society (ACS) SEED high school student program advisor.
Bauer, Nicole, Qianqian Zhang, Jingbo Zhao, Long Ye, Joo-Hyun Kim, Iordania Constantinou, Liang Yan, et al. 2017. "Comparing non-fullerene acceptors with fullerene in polymer solar cells: a case study with FTAZ and PyCNTAZ." J. Mater. Chem. A 5: 4886. (DOI: 10.1039/c6ta10450a).
Wang, Jiayu, Wei Wang, Xiaohui Wang, Yang Wu, Qianqian Zhang, Cenqi Yan, Wei Ma, Wei You, and Xiaowei Zhan. 2017. "Enhancing Performance of Nonfullerene Acceptors via Side-Chain Conjugation Strategy." Adv. Mater. 1702125. (DOI: 10.1002/adma.201702125).
Zhang, Qianqian, Liang Yan, Xuechen Jiao, Zhengxing Peng, Shubin Liu, Jeromy James Rech, Erik Klump, Harald Ade, Franky So, and Wei You. 2017. "Fluorinated Thiophene Units Improve Photovoltaic Device Performance of Donor−Acceptor Copolymers." Chem. Mater. 29: 5990–6002. (DOI: 10.1021/acs.chemmater.7b01683).
Zhang, Qianqian, Mary Allison Kelly, Nicole Bauer, and Wei You. 2017. "The Curious Case of Fluorination of Conjugated Polymers for Solar Cells." Acc. Chem. Res. 50: 2401–2409. (DOI: 10.1021/acs.accounts.7b00326).
Zhao, Fuwen, Shuixing Dai, Yang Wu, Qianqian Zhang, Jiayu Wang, Li Jiang, Qidan Ling, et al. 2017. "Single-Junction Binary-Blend Nonfullerene Polymer Solar Cells with 12.1% Efficiency." Adv. Mater. 1700144. (DOI: 10.1002/adma.201700144).
Ghasemi, Masoud, Long Ye, Qianqian Zhang, Liang Yan, Joo-Hyun Kim, Omar Awartani, Wei You, Abay Gadisa, and Harald Ade. 2017. "Panchromatic Sequentially Cast Ternary Polymer Solar Cells." Adv. Mater. 29: 1604603.Lu, Luyao, Mary Allison Kelly, Wei You, and Luping Yu. 2015. "Status and prospects for ternary organic photovoltaics." Nature Photon. 9: 491-500. (DOI: 10.1038/NPHOTON.2015.128).
Qianqian Zhang, Mary Allison Kelly, Adrian Hunt, Harald Ade, and Wei You. 2016. "Comparative Photovoltaic Study of Physical Blending of Two Donor−Acceptor Polymers with the Chemical Blending of the Respective Moieties." Macromolecules 49: 2533–2540. (DOI: 10.1021/acs.macromol.5b02586).
Tumbleston, John R., Brian A. Collins, Liqiang Yang, Andrew C. Stuart, Eliot Gann, Wei Ma, Wei You, and Harald Ade. 2014. "The influence of molecular orientation on organic bulk heterojunction solar cells." Nature Photon. 8: 385–391. (DOI: 10.1038/nphoton.2014.55).
Xiao, Shengqiang, Qianqian Zhang, and Wei You. 2017. "Molecular Engineering of Conjugated Polymers for Solar Cells: An Updated Report." Adv. Mater. 1601391. (DOI: 10.1002/adma.201601391).
Research on perovskite solar cells, dye-sensitized solar cells, and supercapacitors for energy storage. Research involves materials synthesis and device fabrication; understanding of charge transport and its relationship to electrode morphology; device/electrode characterization and modeling.
Research on charge-transport and interfacial charge-transfer kinetics in dye-sensitized solar cells.
Research on transport properties in III-Nitride wide-bandgap high-power light emitting diodes.

References: V. 
 V. 
 V. 
 V. 
 V. 
 V. 
 V. 
 V. 
 V. 
 V. 
 V.