Barrier coating and plasmonic effect by using diamond-like carbon and silver nanoparticles on quantum dots sensitize solar cells
Creators: name: Shafiekhani, Azizollah
name: Hekmat, Maryam
name: Rostamyan, Fatemeh
name: Khabir, Mehdi
Publisher: name: figshare
Year: 2020
Subjects: subject: 20301 Acoustics and Acoustical Devices; Waves
subject: FOS: Physical sciences
subject: FOS: Physical sciences
subject: Applied Physics
subject: Atomic Physics
subject: 20201 Atomic and Molecular Physics
subject: 20299 Atomic, Molecular, Nuclear, Particle and Plasma Physics not elsewhere classified
subject: 29901 Biological Physics
subject: FOS: Biological sciences
subject: FOS: Biological sciences
subject: 20399 Classical Physics not elsewhere classified
subject: 20501 Classical and Physical Optics
subject: 29902 Complex Physical Systems
subject: Computational Physics
subject: 20401 Condensed Matter Characterisation Technique Development
subject: 20402 Condensed Matter Imaging
subject: 20403 Condensed Matter Modelling and Density Functional Theory
subject: Condensed Matter Physics
subject: 20499 Condensed Matter Physics not elsewhere classified
subject: 20601 Degenerate Quantum Gases and Atom Optics
subject: 20404 Electronic and Magnetic Properties of Condensed Matter; Superconductivity
subject: 20302 Electrostatics and Electrodynamics
subject: Entropy
subject: 20602 Field Theory and String Theory
subject: 20303 Fluid Physics
subject: General Relativity
subject: 20502 Lasers and Quantum Electronics
subject: Mechanics
subject: 29903 Medical Physics
subject: 20503 Nonlinear Optics and Spectroscopy
subject: 20202 Nuclear Physics
subject: 20599 Optical Physics not elsewhere classified
subject: 20203 Particle Physics
subject: 20504 Photonics, Optoelectronics and Optical Communications
subject: 29999 Physical Sciences not elsewhere classified
subject: 20405 Soft Condensed Matter
subject: Special Relativity
subject: 20406 Surfaces and Structural Properties of Condensed Matter
subject: 29904 Synchrotrons; Accelerators; Instruments and Techniques
subject: Thermodynamics
subject: 20304 Thermodynamics and Statistical Physics
subject: FOS: Mechanical engineering
subject: FOS: Mechanical engineering

description: Effects of diamond-like carbon (DLC) and Ag nanoparticles (Ag NPs) on photoanode of quantum dot sensitized solar cell (QDSSCs) have studied for the first time. Photoanodes include thin films of the TiO2 deposited on the FTO substrate, subsequently, graphene and CdS quantum dots (QDs) added on. Some photoanodes decorate by Ag nanoparticles and DLC thin film. Current density-voltage (J-V) characterization showed that the short-circuit current density (J sc) and power conversion efficiency (PCE) of QDSSCs with localized surface plasmon resonance (LSPR) of Ag NPs and anti-corrosion, photon and electron barrier properties of DLC thin film increase photon harvesting and improve solar cells performance. J sc of this configuration increased from about 8.87 to 14.6 mA cm-2, nearly doubled. The Ag NPs scatter photon and increase the photon harvesting in QDs. Results were showing that the presence of a thin film of DLC on TiO2/CdS/G photoanodes increased the efficiency by 97%, short circuit current by 64%, and open circuit voltage by 16%. Also, the efficiency change from 0.8 to 1.58 in the presence of both DLC and Ag NPs in cells in compare with cells without Ag NPs and DLC. <br>