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Improved performance of thin film solar cells based on Cu(In,Ga)S2
- Source :
-
Thin Solid Films . Aug2002, Vol. 415 Issue 1/2, p266. 6p. - Publication Year :
- 2002
-
Abstract
- Different approaches to the multi-source evaporation of Cu(In,Ga)S2 for thin film solar cells have been studied. Indirect synthesis via a copper-free precursor film leads to superior transport properties but also to an inherent grading of the [Ga]/([In]+[Ga]) ratio. Solar cells prepared from these absorbers show confirmed total area conversion efficiencies up to 12.3%, exceeding the previous record for selenium-free chalcopyrite based cells. A more homogeneous gallium depth distribution and a higher absorber band gap have been achieved by modifying the preparation sequence. An efficiency of more than 10% is demonstrated for the first time with high gap chalcopyrite absorbers as required for tandem configurations. [Copyright &y& Elsevier]
- Subjects :
- *SOLID state electronics
*SOLID state physics
Subjects
Details
- Language :
- English
- ISSN :
- 00406090
- Volume :
- 415
- Issue :
- 1/2
- Database :
- Academic Search Index
- Journal :
- Thin Solid Films
- Publication Type :
- Academic Journal
- Accession number :
- 7873571
- Full Text :
- https://doi.org/10.1016/S0040-6090(02)00554-0