Theoretical Analysis of Optical Losses in CdS/CdTe Solar Cells |
| V.Ya. Roshko, L.A. Kosyachenko and E.V. Grushko
Optoelectronics Department, Chernivtsi National University, Kotsyubinsky Str. 2, 58012 Chernivtsi, Ukraine |
| Full Text PDF |
| Based on the known refractive index and extinction coefficient, calculations of optical losses in glass/transparent conducting oxide/CdS/CdTe solar cells have been carried out taking into account reflections at the interfaces and absorption in the transparent conducting oxide (indium tin oxide or SnO2:F) and CdS layers. It has been shown that the losses caused by reflections at the interfaces result in lowering the short-circuit current by ≈ 9% whereas absorption in the transparent conducting oxide and CdS layers with the typical thicknesses lead to losses of 15-16% for glass/SnO2/CdS/CdTe, and 22-24% for glass/indium tin oxide/CdS/CdTe solar cells. |
| DOI: 10.12693/APhysPolA.120.954 PACS numbers: 84.60.Jt, 85.60.Dw, 73.61.Ga |