CGS based solar cells with In2S3 buffer layer deposited by CBD and coevaporation
AUTOR(ES)
Vallejo, W., Clavijo, J., Gordillo, G.
FONTE
Brazilian Journal of Physics
DATA DE PUBLICAÇÃO
2010-03
RESUMO
In this paper we investigated In2S3 as substitute for CdS, which is conventionally used as buffer layer in chalcopyrite based solar cells. In2S3 thin films were deposited by CBD and co-evaporation methods and these were employed as buffer layer in CuGaSe2 based solar cells. Previous to the device fabrication, comparative study was carried out on In2S3 thin films properties deposited from chemical bath containing thioacetamide, Indium Chloride, and sodium citrate, and In2S3 thin films prepared by co-evaporation from its constituents elements. The influence of synthesis conditions on the growth rate, optical, structural and morphological properties of the as-grown In2S3 thin films have been carried out with Spectrophotometry, X-ray diffraction and AFM microscopy techniques. Suitable conditions were found for reproducible and good quality In2S3 thin films synthesis. By depositing In2S3 thin films as buffer layers in CuGaSe2 configuration, a maximum solar cell efficiency of 6% was achieved, whilst the reference solar cell with CdS/CuGaSe2 on similar absorber exhibited 7% efficiency.
Documentos Relacionados
- Microstructural and optical properties of CSS and CBD-CdS thin films for photovoltaic solar cells
- Temperature and Deposition Time Effect on Properties and Kinetics of CdSe and CdS0.25Se0.75 Films Deposited by CBD
- Performance Evaluation of Titanate Nanotubes and Nanoribbons Deposited by Electrophoresis in Photoelectrodes of Dye-Sensitized Solar Cells
- Optical and structural studies on SnS films grown by co-evaporation
- Flexible, Large-Area Organic Solar Cells With Improved Performance Through Incorporation of CoFe2O4 Nanoparticles in the Active Layer