II-VI photovoltaic heterojunctions for solar energy conversion
- 15 November 1974
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 25 (10), 605-608
- https://doi.org/10.1063/1.1655329
Abstract
Several different II‐VI heterojunctions show possible promise for photovoltaic conversion of solar energy. Two of these are p‐CdTe/n‐CdS and p‐CdTe/n‐Zn0.35Cd0.65S, which have a maximum solar efficiency of 17 and 23%, respectively. We report here specifically on the properties of p‐CdTe/n‐CdS cells prepared (a) by close‐spaced vapor transport of CdTe onto single‐crystal CdS, and (b) by two‐source vacuum evaporation of CdS onto single‐crystal CdTe. Cells with efficiency of 4.0% have been produced without detailed attention to optimization of cell design; these cells have quantum efficiencies as high as 0.85.Keywords
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