Interface recombination in heterojunctions of amorphous and crystalline silicon

Autor: K. Brendel, L. Elstner, Walther Fuhs, Manfred Schmidt, A. Froitzheim, K. Kliefoth
Rok vydání: 2002
Předmět:
Zdroj: Journal of Non-Crystalline Solids. :663-667
ISSN: 0022-3093
DOI: 10.1016/s0022-3093(01)01029-8
Popis: Heterojunction solar cells consisting of an n-type a-Si:H(n) emitter and a p-type monocrystalline silicon wafer have been studied with particular emphasis on the role of interface recombination. It is shown that the form of the I – V characteristics and the effective interface recombination velocity depend on the treatment of the Si-wafer prior to the deposition of the amorphous emitter. Numerical simulation suggests that the non-exponential (S-shape) dependence of the I – V curves under illumination arises from a high density of interface states which results in enhanced recombination via interface states.
Databáze: OpenAIRE