TY - GEN
T1 - Growth and study of CuIn1-xAlxSe2 thin films for photovoltaic applications
AU - Kekuda, Dhananjaya
AU - Nagaraju, J.
AU - Krupanidhi, S. B.
PY - 2012/12/1
Y1 - 2012/12/1
N2 - 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.
AB - 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.
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U2 - 10.1063/1.4710375
DO - 10.1063/1.4710375
M3 - Conference contribution
AN - SCOPUS:84876806801
SN - 9780735410442
VL - 1447
T3 - AIP Conference Proceedings
SP - 1067
EP - 1068
BT - Solid State Physics - Proceedings of the 56th DAE Solid State Physics Symposium 2011
T2 - 56th DAE Solid State Physics Symposium 2011
Y2 - 19 December 2011 through 23 December 2011
ER -