Industrial development of silicon hetero-junction back contact solar cells

Author

Choi, Jin-Ho ; Lee, Jong-Chul ; Kim, Sang-Kyun ; Park, Hun ; Kim, Ki-Hyun ; Lee, Won-jae

Author_Institution

Green Energy Res. Inst., Hyundai Heavy Ind., Co., Ltd., Yongin, South Korea

fYear

2012

fDate

3-8 June 2012

Abstract

Silicon hetero-junction (SHJ) with the a-Si:H/c-Si structure is one of the candidates for high efficiency solar cells. Despite SHJ solar cells show more than 22% efficiency, SHJ solar cells are limited by optical losses on the front surface. To overcome these limitations, silicon hetero-junction back contact (HBC) solar cells are suggested. HBC solar cells combined the advantages of silicon hetero-junction (SHJ) and Interdigitated Back Contact (IBC) solar cells. In this study, HBC solar cell structures were designed by simulation methods and optimized fabrication processes for industrial application. Dimensions of back contact patterns were design by TCAD ATLAS software. Based on simulation results, p-type and n-type back contact patterns were fabricated.

Keywords

solar cells; HBC solar cell structures; SHJ solar cells; TCAD ATLAS software; back contact patterns; high efficiency solar cells; industrial application; industrial development; interdigitated back contact solar cells; n-type back contact patterns; optical losses; optimized fabrication processes; p-type back contact patterns; silicon hetero-junction back contact solar cells; Indexes; Metals; Resistance; Silicon; ATLAS simulation; back contact; silicon hetero-junction;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE

Conference_Location

Austin, TX

ISSN

0160-8371

Print_ISBN

978-1-4673-0064-3

Type

conf

DOI

10.1109/PVSC.2012.6317776

Filename

6317776