Group I-III-VI.sub.2 semiconductor films for solar cell applicat

Details Group I-III-VI.sub.2 semiconductor films for solar cell applicat Group I-III-VI.sub.2 semiconductor films for solar cell applicat

1989-06-07

1991-07-02

Weisstuch, Aaron

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

136260, 136262, 136265, 357 16, 357 30, 427 76, 437 5, 437232, H01L 31072, H01L 3118, H01L 310272

Patent

active

050282743

ABSTRACT:
This invention relates to an improved thin film solar cell with excellent electrical and mechanical integrity. The device comprises a substrate, a Group I-III-VI.sub.2 semiconductor absorber layer and a transparent window layer. The mechanical bond between the substrate and the Group I-III-VI.sub.2 semiconductor layer is enhanced by an intermediate layer between the substrate and the Group I-III-VI.sub.2 semiconductor film being grown. The intermediate layer contains tellurium or substitutes therefor, such as Se, Sn, or Pb. The intermediate layer improves the morphology and electrical characteristics of the Group I-III-VI.sub.2 semiconductor layer.

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