Spectral response modelling of a-Si:H solar cells using accurate light absorption profiles

Author

Stiebig, H. ; Kreisel, A. ; Winz, K. ; Schultz, N. ; Beneking, C. ; Eickhoff, Th. ; Wagner, H. ; Meer, M.

Author_Institution

Inst. fur Schicht- und Ionentechnik, Forschungszentrum Julich GmbH, Germany

Volume

1

fYear

1994

fDate

5-9 Dec 1994

Firstpage

603

Abstract

An optical model calculating the generated carrier profile in a-Si:H solar cells deposited on hazy and nonhazy transparent conducting oxide (TCO) has been integrated into a numerical transport and recombination program. A comparison of simulated and measured reflectances of pin structures opens up a possibility to check the prepared layer thicknesses and the optical device properties. Furthermore, the examination of the current gain employing a ZnO/metal back contact reveals the importance of using accurate light absorption profiles for spectral response modelling and device characterisation of pin solar cells

Keywords

amorphous semiconductors; electron-hole recombination; elemental semiconductors; hydrogen; light absorption; light propagation; reflectivity; semiconductor device models; semiconductor-metal boundaries; silicon; silver; solar cells; zinc compounds; Si:H; ZnO-Ag; ZnO/metal back contact; a-Si:H solar cells; accurate light absorption profiles; coherent wave propagation; device characterisation; generated carrier profile; hazy transparent conducting oxide; incoherent wave propagation; measured reflectance; nonhazy transparent conducting oxide; numerical transport and recombination program; optical model; pin solar cells; pin structures; simulated reflectance; spectral response modelling; Absorption; Numerical models; Optical devices; Optical films; Optical refraction; Optical sensors; Optical variables control; Photovoltaic cells; Reflectivity; Solar power generation;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Energy Conversion, 1994., Conference Record of the Twenty Fourth. IEEE Photovoltaic Specialists Conference - 1994, 1994 IEEE First World Conference on

Conference_Location

Waikoloa, HI

Print_ISBN

0-7803-1460-3

Type

conf

DOI

10.1109/WCPEC.1994.520033

Filename

520033