Classification of metastabilities in the electrical characteristics of ZnO/CdS/Cu(In,Ga)Se-2 solar cells

Authors
Zabierowski, P Rau, U Igalson, M
Citation
P. Zabierowski et al., Classification of metastabilities in the electrical characteristics of ZnO/CdS/Cu(In,Ga)Se-2 solar cells, THIN SOL FI, 387(1-2), 2001, pp. 147-150
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
THIN SOLID FILMS
ISSN journal
00406090 → ACNP
Volume
387
Issue
1-2
Year of publication
2001
Pages
147 - 150
Database
ISI
SICI code
0040-6090(20010529)387:1-2<147:COMITE>2.0.ZU;2-O
Abstract
We experimentally distinguish between three types of metastable electrical behavior in Cu(In,Ga)Se-2-based heterojunction thin-film solar cells. A met astable increase of net acceptor concentration in the bulk of the Cu(In,Ga) Se-2 absorber material is induced by illumination with red light, an increa se of net positive charge at the interfacial region is induced by blue ligh t, and a reversible creation of negative charges occurs by the application of reverse bias at temperatures above 340 K. We discuss the physical origin of these metastabilities. (C) 2001 Elsevier Science B.V. All rights reserv ed.