Growth and study of CuIn1-xAlxSe2 thin films for photovoltaic applications

Dhananjaya Kekuda, J. Nagaraju, S. B. Krupanidhi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Chalcopyrite semiconductors such as CuIn1-xAlxSe 2 have been currently investigated as a promising material for photovoltaic applications since their band gap energy matches with the solar spectrum. The absorber layers as thin as 2μm are sufficient for the absorption of the visible part of sun light, because they are characterized by a high absorption coefficient. The absorber layers are grown by the multi-source evaporation technique. From the X-ray analysis it is found that the films had a preferred oriented along the (112) direction, which confirmed the chalcopyrite phase. The optical studies revealed that replacing 50% of In by Al, will bring the band gap energy to 1.5eV, which will match the solar spectrum. Photo-response of the heterostructure is presented.

Original languageEnglish
Title of host publicationSolid State Physics - Proceedings of the 56th DAE Solid State Physics Symposium 2011
Pages1067-1068
Number of pages2
Volume1447
Edition1
DOIs
Publication statusPublished - 01-12-2012
Event56th DAE Solid State Physics Symposium 2011 - Kattankulathur, Tamilnadu, India
Duration: 19-12-201123-12-2011

Conference

Conference56th DAE Solid State Physics Symposium 2011
CountryIndia
CityKattankulathur, Tamilnadu
Period19-12-1123-12-11

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Kekuda, D., Nagaraju, J., & Krupanidhi, S. B. (2012). Growth and study of CuIn1-xAlxSe2 thin films for photovoltaic applications. In Solid State Physics - Proceedings of the 56th DAE Solid State Physics Symposium 2011 (1 ed., Vol. 1447, pp. 1067-1068) https://doi.org/10.1063/1.4710375