TY - GEN
T1 - Optical properties of flash evaporated amorphous Se100-xIn x thin films for CuInSe2 solar cell applications
AU - Muiva, Cosmas M.
AU - Maabong, Kelebogile
AU - Sathiaraj, Stephen T.
AU - Mwabora, Julius M.
PY - 2012
Y1 - 2012
N2 - Amorphous Se100-xInx thin films were prepared by flash evaporation of the pre-melt quenched bulk samples. The samples were characterised and the suitability of each composition assessed towards applications as a buffer layers in CuInSe2 photovoltaic cells. XRD studies confirmed that all the samples were amorphous. There was a descending dependence of complex dielectric constant and refractive index on wavelength which levelled in the infra-red (IR) region. A red shift in the optical energy gap Egopt from 1.76 eV for In = 5 at% to 1.46 eV for In = 20 at% was observed. The Egopt values were in the range that is compatible with solar energy conversion.
AB - Amorphous Se100-xInx thin films were prepared by flash evaporation of the pre-melt quenched bulk samples. The samples were characterised and the suitability of each composition assessed towards applications as a buffer layers in CuInSe2 photovoltaic cells. XRD studies confirmed that all the samples were amorphous. There was a descending dependence of complex dielectric constant and refractive index on wavelength which levelled in the infra-red (IR) region. A red shift in the optical energy gap Egopt from 1.76 eV for In = 5 at% to 1.46 eV for In = 20 at% was observed. The Egopt values were in the range that is compatible with solar energy conversion.
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U2 - 10.2316/P.2012.760-029
DO - 10.2316/P.2012.760-029
M3 - Conference contribution
AN - SCOPUS:84883645588
SN - 9780889869486
T3 - Series on Energy and Power Systems
SP - 86
EP - 90
BT - Proceedings of the IASTED African Conference on Power and Energy Systems, AfricaPES 2012
T2 - 4th IASTED African Conference on Power and Energy Systems, AfricaPES 2012
Y2 - 3 September 2012 through 5 September 2012
ER -