One-dimensional modeling of BC-BJ silicon soalr cells

Author

Chunlan, Zhou ; Wenjing, Wang ; Lei, Zhao ; Hailing, Li ; Yehua, Tang ; Tao, Li ; Hongwei, Diao ; Yang, Song ; Zhihua, Gao ; Ye, Duan ; Youzhong, Li

Author_Institution

Key Lab. of Solar Thermal Energy & Photovoltaic Syst., CAS, Beijing, China

Volume

1

fYear

2011

fDate

20-22 May 2011

Firstpage

238

Lastpage

241

Abstract

In this study, simulation using a simplified one-dimensional (1D) back-junction solar cells structure to describe the effects which occur in the Back-Contact Back-Junction (BC-BJ) solar cell is performed. Our simulation results show that the BC-BJ cell is particularly suited for high lifetimes and thin substrate. Simulation results indicate that achieving a bulk lifetime of around 1 ms will need the requirement of realizing very high-efficiency BC-BJ cells. The effect of different cell parameters (e.g., surface recombination velocities-SRV, bulk lifetime, phosphorus doped front surface-FSF, bulk resistivity, etc.) is explored. The presence of the front FSF improves the front surface passivation and the optimum phosphorus doping profile depending on the SRV.

Keywords

passivation; solar cells; back-contact back-junction solar cell; front surface passivation; one-dimensional back-junction solar cells; one-dimensional modeling; time 1 ms; Analytical models; Junctions; Passivation; RNA; 1D model simulation; back contact back junction; bulk lifetime; front surface field; surface recombination velocities;

fLanguage

English

Publisher

ieee

Conference_Titel

Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-61284-749-8

Type

conf

DOI

10.1109/ICMREE.2011.5930804

Filename

5930804