T. Okamoto et al., Improved performance of CdTe thin film solar cells through controlling theinitial stage of the CdTe layer deposition by close-spaced sublimation, SOL EN MAT, 67(1-4), 2001, pp. 187-194
Control of the initial stage of the CdTe deposition was investigated by mod
ifying the substrate and the source temperature profiles in close-spaced su
blimation (CSS) process for improving the performance of CdTe thin film sol
ar cells. In the modified temperature profile, the substrate temperature wa
s increased with higher rate than that of the source temperature. By using
the modified temperature profile, the conversion efficiency was improved as
compared with the conventional temperature profile, and 15.3% efficiency(
V-oc:0.811 V, J(sc): 26.3 mA/cm(2), FF: 0.718, 1 cm(2), AM 1.5) was achieve
d. (C) 2001 Elsevier Science B.V. All rights reserved.