bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ultraviolet‐Visible‐Short‐Wavelength Infrared Broadband and Fast‐Response Photodetectors Enabled by Individual Monocrystalline Perovskite Nanoplate
Authors: Mei Luyao , Zhang Kai , Cui Nan , Yu Wenzhi , Li Yang , Gong Kaiwen , Li Haozhe , Fu Nianqing , Yuan Jian , Mu Haoran , Huang Zhanfeng , Xu Zhengji , Lin Shenghuang , Zhu Lu 
Published: April 2023

AbstractPerovskite‐based photodetectors exhibit potential applications in communication, neuromorphic chips, and biomedical imaging due to their outstanding photoelectric properties and facile manufacturability. However, few of perovskite‐based photodetectors focus on ultraviolet‐visible‐short‐wavelength infrared (UV–Vis–SWIR) broadband photodetection because of the relatively large bandgap. Moreover, such broadband photodetectors with individual nanocrystal channel featuring monolithic integration with functional electronic/optical components have hardly been explored. Herein, an individual monocrystalline MAPbBr3 nanoplate‐based photodetector is demonstrated that simultaneously achieves efficient UV–Vis–SWIR detection and fast‐response. Nanoplate photodetectors (NPDs) are prepared by assembling single nanoplate on adjacent gold electrodes. NPDs exhibit high external quantum efficiency (EQE) and detectivity of 1200% and 5.37 × 1012 Jones, as well as fast response with rise time of 80 µs. Notably, NPDs simultaneously achieve high EQE and fast response, exceeding most perovskite devices with multi‐nanocrystal channel. Benefiting from the high specific surface area of nanoplate with surface‐trap‐assisted absorption, NPDs achieve high performance in the near‐infrared and SWIR spectral region of 850–1450 nm. Unencapsulated devices show outstanding UV‐laser‐irradiation endurance and decent periodicity and repeatability after 29‐day‐storage in atmospheric environment. Finally, imaging applications are demonstrated. This work verifies the potential of perovskite‐based broadband photodetection, and stimulates the monolithic integration of various perovskite‐based devices.
Water‐Trapping Single‐Atom Co‐N4/Graphene Triggering Direct 4e− LiOH Chemistry for Rechargeable Aprotic Li–O2 Batteries
Authors: Zhang Wenjing , Zheng Jian , Wang Ruoyu , Huang Li , Wang Junkai , Zhang Tianran , Liu Xiangfeng 
Published: April 2023

AbstractLithium–oxygen (Li–O2) batteries have received extensive attention owing to ultrahigh theoretical energy density. Compared to typical discharge product Li2O2, LiOH has attracted much attention for its better chemical and electrochemical stability. Large‐scale applications of Li–O2 batteries with LiOH chemistry are hampered by the serious internal shuttling of the water additives with the desired 4e− electrochemical reactions. Here, a metal organic framework‐derived “water‐trapping” single‐atom‐Co‐N4/graphene catalyst (Co‐SA‐rGO) is provided that successfully mitigates the water shuttling and enables the direct 4e− catalytic reaction of LiOH in the aprotic Li–O2 battery. The Co‐N4 center is more active toward proton‐coupled electron transfer, benefiting ‐ direction 4e− formation of LiOH. 3D interlinked networks also provide large surface area and mesoporous structures to trap ≈12 wt% H2O molecules and offer rapid tunnels for O2 diffusion and Li+ transportation. With these unique features, the Co‐SA‐rGO based Li–O2 battery delivers a high discharge platform of 2.83 V and a large discharge capacity of 12 760.8 mAh g−1. Also, the battery can withstand corrosion in the air and maintain a stable discharge platform for 220 cycles. This work points out the direction of enhanced electron/proton transfer for the single‐atom catalyst design in Li–O2 batteries.
Multiple‐ion Management of Perovskites by Regulating Spatial Distribution of Hydroxyls in Oligosaccharides
Authors: Liu Xiaotao , Jiang Xiaoqing , Zhang Jiafeng , Li Can , Guo Xin 
Published: April 2023

AbstractSuppressing migrations of intrinsic and extrinsic ions (e.g., Pb2+, I‐, FA+/MA+, and Li+) in organic–inorganic hybrid perovskites is critical for alleviating the hysteresis and degradation of perovskite solar cells (PSCs). However, various additives reported for that purpose usually interact with one or two types of those ions, not inhibiting multiple‐ion migrations simultaneously. Two oligosaccharides (β‐cyclodextrin (β‐CD) and maltotetraose (G4)), containing 14 hydroxyls (−OH) with different spatial distributions, for the suppression of multiple‐ion migrations in PSCs is herein employed. Compared to linear arrangement of −OH in G4, annular distribution of −OH around wide and narrow rims of β‐CD can form supramolecular multi‐site interactions in a focal manner with various ions, more effectively capturing and immobilizing these migrated ions. With this multiple‐ion management strategy, β‐CD‐based PSCs exhibit an impressive efficiency of 24.22% with negligible hysteresis and excellent device stability. This work highlights the significances of multi‐site interactions and molecular configuration of the additive for inhibiting multi‐ion migrations in PSCs.
Efficient Nitrate Generation through Electrochemical N2 Oxidation with Nickel Oxyhydroxide Decorated Copper Hydroxide Driven by Solar Cells
Authors: Wang Zhongke , Zhang Qixing , Wang He , Sun Cong , Li Xingliang , He Han , Wang Juan , Zhao Ying , Zhang Xiaodan 
Published: April 2023

AbstractElectrocatalytic nitrogen oxidation reaction (NOR) into nitrate under ambient conditions, as an alternative to replace traditional industrial method, is a promising artificial N2 fixation strategy, especially powered by renewable energy. Here, through skillfully balancing competitive relationships between NOR and oxygen evolution reaction (OER), the nickel oxyhydroxide decorated Cu(OH)2 hybrid electrocatalyst with Cu:Ni molar ratio of 1:1 is developed, which achieves outstanding Faradaic efficiency (FE) of 18.7% and yield rate of 228.24 µmol h−1 gcat−1 at 2.0 V versus reversible hydrogen electrode (RHE) in the electrolyte of 0.1 m Na2SO4. Also, the hybrid catalyst maintained over five cycles (10 h each cycle) with negligible decay in performance. The synergetic effect between the components of nickel oxyhydroxide and Cu(OH)2 is found to remarkably activate N2 and suppress the activity of competitive OER, which enhances NOR performance eventually. Moreover, the conversion efficiency of solar‐to‐nitrate (STN) with 0.025% was obtained by coupling with a commercial solar cell. This work provides a novel avenue of rational catalysts design strategies and realizes solar‐to‐nitrate synthesis.
Air‐Stable Violet Phosphorus/MoS2 van der Waals Heterostructure for High‐Responsivity and Gate‐Tunable Photodetection
Authors: Zhang Yao , Zhu Tao , Zhang Nannan , Li Yubin , Li Xiaobo , Yan Minglu , Tang Yue , Zhang Jinying , Jiang Man , Xu Hua 
Published: April 2023

AbstractViolet phosphorus (VP), a newly emerging elemental 2D semiconductor, with attractive properties such as tunable bandgap, high carrier mobility, and unusual structural anisotropy, offers significant opportunities for designing high‐performance electronic and optoelectronic devices. However, the study on fundamental property and device application of 2D VP is seriously hindered by its inherent instability in ambient air. Here, a VP/MoS2 van der Waals heterostructure is constructed by vertically staking few‐layer VP and MoS2, aiming to utilize the synergistic effect of the two materials to achieve a high‐performance 2D photodetector. The strong optical absorption of VP combining with the type‐II band alignment of VP/MoS2 heterostructure make VP play a prominent photogating effect. As a result, the VP/MoS2 heterostructure photodetector achieves an excellent photoresponse performances with ultrahigh responsivity of 3.82 × 105 A W–1, high specific detectivity of 9.17 × 1013 Jones, large external quantum efficiency of 8.91 × 107 %, and gate tunability, which are much superior to that of individual MoS2 device or VP device. Moreover, the VP/MoS2 heterostructure photodetector indicates superior air stability due to the effective protection of VP by MoS2 encapsulation. This work sheds light on the future study of the fundamental property and optoelectronic device application of VP.
Enhanced Chemodynamic Therapy Mediated by a Tumor‐Specific Catalyst in Synergy with Mitophagy Inhibition Improves the Efficacy for Endometrial Cancer
Authors: Gong Xiaodi , Wang Jing , Yang Linlin , Li Lijuan , Gao Xiaoyan , Sun Xiao , Bai Jingfeng , Liu Jichang , Pu Xin , Wang Yudong 
Published: April 2023

AbstractChemodynamic therapy (CDT) relies on the tumor microenvironment (e.g., high H2O2 level) responsive Fenton‐like reactions to produce hydroxyl radicals (·OH) against tumors. However, endogenous H2O2 is insufficient for effective chemodynamic responses. An NAD(P)H: quinone oxidoreductase 1 (NQO1)high catalase (CAT)low therapeutic window for the use of NQO1 bioactive drug β‐lapachone (β‐Lap) is first identified in endometrial cancer (EC). Accompanied by NADH depletion, NQO1 catalyzes β‐Lap to produce excess H2O2 and initiate oxidative stress, which selectively suppress NQO1high EC cell proliferation, induce DNA double‐strand breaks, and promote apoptosis. Moreover, shRNA‐mediated NQO1 knockdown or dicoumarol rescues NQO1high EC cells from β‐Lap‐induced cytotoxicity. Arginine‐glycine‐aspartic acid (RGD)‐functionalized iron‐based metal‐organic frameworks (MOF(Fe)) further promote the conversion of the accumulated H2O2 into highly oxidative ·OH, which in turn, exacerbates the oxidative damage to RGD‐positive target cells. Furthermore, mitophagy inhibition by Mdivi‐1 blocks a powerful antioxidant defense approach, ultimately ensuring the anti‐tumor efficacy of stepwise‐amplified reactive oxygen species signals. The tumor growth inhibition rate (TGI) is about 85.92%. However, the TGI of MOF(Fe)‐based synergistic antitumor therapy decreases to only 50.46% in NQO1‐deficient KLE tumors. Tumor‐specific chemotherapy and CDT‐triggered therapeutic modality present unprecedented therapeutic benefits in treating NQO1high EC.
Dense‐Packed RuO2 Nanorods with In Situ Generated Metal Vacancies Loaded on SnO2 Nanocubes for Proton Exchange Membrane Water Electrolyzer with Ultra‐Low Noble Metal Loading
Authors: Huang Bing , Cui Yaqi , Liu Xuwei , Zheng Caixia , Wang Hao , Guan Lunhui 
Published: April 2023

AbstractProton exchange membrane water electrolyzer (PEMWE) is a green hydrogen production technology that can be coupled with intermittent power sources such as wind and photoelectric power. To achieve cost‐effective operations, low noble metal loading on the anode catalyst layer is desired. In this study, a catalyst with RuO2 nanorods coated outside SnO2 nanocubes is designed, which forms continuous networks and provides high conductivity. This allows for the reduction of Ru contents in catalysts. Furthermore, the structure evolutions on the RuO2 surface are carefully investigated. The etched RuO2 surfaces are seen as the consequence of Co leaching, and theoretical calculations demonstrate that it is more effective in driving oxygen evolution. For electrochemical tests, the catalysts with 23 wt% Ru exhibit an overpotential of 178 mV at 10 mA cm−2, which is much higher than most state‐of‐art oxygen evolution catalysts. In a practical PEMWE, the noble metal Ru loading on the anode side is only 0.3 mg cm−2. The cell achieves 1.61 V at 1 A cm−2 and proper stability at 500 mA cm−2, demonstrating the effectiveness of the designed catalyst.
Octahedral/Tetrahedral Vacancies in Fe3O4 as K‐Storage Sites: A Case of Anti‐Spinel Structure Material Serving as High‐Performance Anodes for PIBs
Authors: Tu Jinwei , Tong Huigang , Wang Peichen , Wang Dongdong , Yang Yang , Meng Xiangfu , Hu Lin , Wang Hui , Chen Qianwang 
Published: April 2023

AbstractPotassium‐ion batteries (PIBs) have attracted more and more attention as viable alternatives to lithium‐ion batteries (LIBs) due to the deficiency and uneven distribution of lithium resources. However, it is shown that potassium storage in some compounds through reaction or intercalation mechanisms cannot effectively improve the capacity and stability of anodes for PIBs. The unique anti‐spinel structure of magnetite (Fe3O4) is densely packed with thirty‐two O atoms to form a face‐centered cubic (fcc) unit cell with tetrahedral/octahedral vacancies in the O‐closed packing structure, which can serve as K+ storage sites according to the density functional theory (DFT) calculation results. In this work, carbon‐coated Fe3O4@C nanoparticles are prepared as high‐performance anodes for PIBs, which exhibit high reversible capacity (638 mAh g−1 at 0.05 A g−1) and hyper stable cycling performance at ultrahigh current density (150 mAh g−1 after 9000 cycles at 10 A g−1). In situ XRD, ex‐situ Fe K‐edge XAFS, and DFT calculations confirm the storage of K+ in tetrahedral/octahedral vacancies.
A Piezoelectric‐Driven Electrochromic/Electrofluorochromic Dual‐Modal Display Device
Authors: Zhang Yingchao , Jia Xiaoteng , Sun Bolun , Huang Ruonan , Wang Ce , Chao Danming 
Published: April 2023

AbstractElectrochromic (EC) reflective displays offer great advantages in delivering information and providing visual data, but are limited in dark environments. Reflective/emissive dual‐modal displays capable of electrochemically‐induced color and fluorescence change simultaneously are highly desirable, especially possessing rapid response speed as well as long‐term durability. Herein, an electroactive fluorescent ionic liquid based on triphenylamine and imidazole (EFIL‐TPA) has been synthesized for reflective/emissive dual‐modal display. The resultant device exhibits outstanding electrochromic/electrofluorochromic (EC/EFC) performance with low driving voltage (below 1.0 V), fast switching speed (0.57–1.8 s), and remarkable cycling durability (91% retention for 10 000 cycles). A piezoelectric nanogenerator (PENG) driven EC/EFC integrated system is fabricated to harvest energy from human motion and visually drive the color/fluorescence change for human motion indication in both bright and dark environments. This innovative EC/EFC dual‐modal display device based on EFIL‐TPA supports a huge space for the development of self‐powered human motion visualized indication in all‐light conditions.
A Bistable Triboelectric Nanogenerator for Low‐Grade Thermal Energy Harvesting and Solar Thermal Energy Conversion
Authors: Zeng Qixuan , Luo Yanlin , Zhang Xiaofang , Tan Liming , Chen Ai , Tang Qian , Yang Huake , Wang Xue 
Published: April 2023

AbstractConverting ubiquitous ambient low‐grade thermal energy into electricity is of great significance for tackling the fossil energy shortage and environmental crisis but poses a considerable challenge. Here, a novel thermal‐driven triboelectric nanogenerator (TD‐TENG) is developed, which utilizes a bimetallic beam with a bi‐stable dynamic feature to induce continuous mechanical oscillations, and the mechanical motion is then converted into electric power using a contact‐separation TENG. The thermal process inside the device is systematically investigated and effective thermal management is conducted accordingly. After optimization, the TD‐TENG can produce a power density of 323.9 mW m−2 at 59.5 °C, obtaining the highest record of TENG‐based thermal energy harvesters. Besides, the first prototype of TENG‐based solar thermal harvester is successfully demonstrated, with a power density of 364.4 mW m−2. Moreover, the TD‐TENG can harvest and dissipate the heat at the same time, exhibiting great potential in over‐heated electronics protection as well as architectural energy conservation. Most importantly, the operation temperature range of the TD‐TENG is tunable by adjusting the bimetal parameters, allowing the device a wide and flexible working thermal gradient. These unique properties validate the TD‐TENG is a simple, feasible, cost‐effective, and high‐efficient low‐grade thermal energy harvester.
Implanting CuS Quantum Dots into Carbon Nanorods for Efficient Magnesium‐Ion Batteries
Authors: Fei Yating , Man Yuehua , Sun Jianlu , Du Yichen , Chen Bingbing , Bao Jianchun , Zhou Xiaosi 
Published: April 2023

AbstractMagnesium‐ion batteries (MIBs) are emerging as potential next‐generation energy storage systems due to high security and high theoretical energy density. Nevertheless, the development of MIBs is limited by the lack of cathode materials with high specific capacity and cyclic stability. Currently, transition metal sulfides are considered as a promising class of cathode materials for advanced MIBs. Herein, a template‐based strategy is proposed to successfully fabricate metal‐organic framework‐derived in‐situ porous carbon nanorod‐encapsulated CuS quantum dots (CuS‐QD@C nanorods) via a two‐step method of sulfurization and cation exchange. CuS quantum dots have abundant electrochemically active sites, which facilitate the contact between the electrode and the electrolyte. In addition, the tight combination of CuS quantum dots and porous carbon nanorods increases the electronic conductivity while accelerating the transport speed of ions and electrons. With these architectural and compositional advantages, when used as a cathode material for MIBs, the CuS‐QD@C nanorods exhibit remarkable performance in magnesium storage, including a high reversible capacity of 323.7 mAh g−1 at 100 mA g−1 after 100 cycles, excellent long‐term cycling stability (98.5 mAh g−1 after 1000 cycles at 1.0 A g−1), and satisfying rate performance (111.8 mA g−1 at 1.0 A g−1).
V‐Integration Modulates t2g‐Electrons of a Single Crystal Ir1‐x(Ir0.8V0.2O2)x‐BHC for Boosted and Durable OER in Acidic Electrolyte
Authors: Ahmad Waqar , Hou Yunpeng , Khan Rashid , Wang Liguang , Zhou Shiyu , Wang Kun , Wan Zhengwei , Zhou Shaodong , Yan Wenjun , Ling Min , Liang Chengdu 
Published: April 2023

AbstractRealizing efficacious π‐donation from the O 2p orbital to electron‐deficient metal (t2g) d‐orbitals along with separately tuned adsorption of *O and *OOH, is an imperious pre‐requisite for an electrocatalyst design to demonstrate boosted oxygen evolution reaction (OER) performance. To regulate the π‐donation and the adsorption ability for *O and *OOH, herein, a facile strategy to modulate the electron transfer from electron‐rich t2g‐orbitals to electron‐deficient t2g‐orbitals, via strong π‐donation from the π‐symmetry lone pairs of the bridging O2−, and the d‐band center of a biomimetic honeycomb (BHC)‐like nanoarchitecture (Ir1‐x(Ir0.8V0.2O2)x‐BHC) is introduced. The suitable integration of V heteroatoms in the single crystal system of IrO2 decreases the electron density on the neighboring Ir sites, and causes an upshift in the d‐band center of Ir1‐x(Ir0.8V0.2O2)x‐BHC, weakening the adsorption of *O while strengthening that of *OOH, lowers the energy barrier for OER. Therefore, BHC design demonstrates excellent OER performance (shows a small overpotential of 238 mV at 10 mA cm−2 and a Tafel slope of 39.87 mV dec−1) with remarkable stability (130 h) in corrosive acidic electrolyte. This work opens a new corridor to design robust biomimetic nanoarchitectures of modulated π‐symmetry (t2g) d‐orbitals and the band structure, to achieve excellent activity and durability in acidic environment.
A Novel Graphene Based Bi‐Function Humidity Tolerant Binder for Lithium‐Ion Battery
Authors: Dong Shu , Zhu Kai , Dong Xiaotong , Dong Guangsheng , Gao Yinyi , Ye Ke , Yan Jun , Wang Guiling , Cao Dianxue 
Published: April 2023

AbstractBinders play a critical role in rechargeable lithium‐ion batteries (LIBs) by holding granular electrode materials, conductive carbons, and current collectors firmly together to form and maintain a continuous electron conduction phase with sufficient mechanical strength. In the commercial LIBs, the dominant binder is polyvinylidene fluoride for the cathode (LiCoO2, LiFePO4, LiNixCotyMnzO2, etc.) and carboxyl methylcellulose/styrene‐butadiene rubber for the anode (graphite and Li4Ti5O12). However, these polymer binders have several drawbacks, particularly, a lack of electronic and lithium‐ion conductivities. Here, a novel organic/inorganic hybrid conductive binder (LAP‐rGO) for both the anode and cathode of LIBs is reported. The binder consists of 2D reduced graphene oxide sheets with anchored long alkane chains. Electrodes prepared using this binder exhibit sufficient high bond strength, fast electrolyte diffusion, high rate charge/discharge performance, and excellent cycling stability. Around 130 mAh g−1 capacity enhancement at 5C is demonstrated for LiFePO4 and Li4Ti5O12 electrodes owing to the combined improvement in electron and lithium ion transportation. LAP‐rGO bond graphite anode shows specific capacity beyond its theoretical value. Electrode slurries prepared using this new binder have superior processing and coating properties that can be prepared under a high humidity and dried using less energy.
Transparent and Stretchable Electromagnetic Interference Shielding Film with Fence‐like Aligned Silver Nanowire Conductive Network
Authors: Feng Yuezhan , Song Jianzhou , Han Gaojie , Zhou Bing , Liu Chuntai , Shen Changyu 
Published: April 2023

AbstractFlexible transparent conductive electrodes (TCEs) that can be used as electromagnetic interference (EMI) shielding materials have a great potential for use as electronic components in optical window and display applications. However, development of TCEs that display high shielding effectiveness (SE) and good stretchability for flexible electronic device applications has proven challenging. Herein, this study describes a stretchable polydimethylsiloxane (PDMS)/silver nanowire (AgNW) TCE with a fence‐like aligned conductive network that is fabricated via pre‐stretching method. The fence‐like AgNW network endowed the PDMS/AgNW film with excellent optoelectronic properties, i.e., low sheet resistance of 7.68 Ω sq−1 at 73.7% optical transmittance, thus causing an effective EMI SE of 32.2 dB at X‐band. More importantly, the fence‐like aligned AgNW conductive network reveals a high stability toward tensile deformation, thus gives the PDMS/AgNW film stretch‐stable conductivity and EMI shielding property in the strain range of 0–100%. Typically, the film can reserve ≈70% or 80% of its initial EMI SE when stretching at 100% strain or stretching/releasing (50% strain) for 128 cycles, respectively. Additionally, the film exhibits a low‐voltage driven and stretchable Joule heating performance. With these overall performances, the PDMS/AgNW film should be well suited for use in flexible and stretchable optical electronic devices.
Pomegranate‐Like FeNC with Optimized FeN4 Configuration as Bi‐Functional Catalysts for Rechargeable Zinc‐Air Batteries
Authors: Li Jiantao , Lin Mengting , Huang Wenzhong , Liao Xiaobin , Ma Yao , Zhou Liang , Mai Liqiang , Lu Jun 
Published: April 2023

AbstractCatalysts with FeNC moieties have demonstrated remarkable activity toward oxygen reduction reaction (ORR), but precise synthesis and configuration regulation of FeNC to achieve bi‐functional catalytic sites for ORR and oxygen evolution reaction (OER) remain a great challenge. Herein, a pomegranate‐like catalyst with optimized FeN4 configuration is designed. The unique framework affords a large surface area for sufficient active site exposure and abundant macroporous channels for mass transport. By twisting chemical bonds, the electronic structure of FeN4 is regulated, and the adsorption/desorption of oxygen species is facilitated. Compared to noble metal‐based catalysts (Pt/C+IrO2), the optimized FeNC exhibits impressive onset potential (0.96 V versus reversible hydrogen electrode), larger limiting current density (5.85 mA cm−2), and better long‐term life for ORR, as well as, lower OER overpotential. When integrated into Zn‐air batteries, it demonstrates a respectable peak power density (71.6 mW cm−2) and ideal cycling stability (30 h), exceeding that of commercial Pt/C+IrO2. The exploration offers a guideline for designing advanced bi‐functional electrocatalysts.