Study on Efficiency Improvement of Cd-free CIGS Solar Cell Applicable to BIPV

CIGS solar cells containing Cd have been widely used for BIPV (Building Integrated Photovoltaics) development since the early days of BIPV. However, CdS buffer layers have toxicity problems and cause environmental issues when the solar cells are discarded, as well as loss of quantum efficiency, resu...

Full description

Saved in:
Bibliographic Details
Published in:Journal of electrical engineering & technology 2024, 19(5), , pp.3569-3573
Main Authors: Sim, Chang-Soo, Bae, Jong-IL, Kwon, Sung-Yeol
Format: Article
Language:English
Subjects:
Electrical Engineering
Electrical Machines and Networks
Electronics and Microelectronics
Engineering
Instrumentation
Original Article
Power Electronics
전기공학
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:CIGS solar cells containing Cd have been widely used for BIPV (Building Integrated Photovoltaics) development since the early days of BIPV. However, CdS buffer layers have toxicity problems and cause environmental issues when the solar cells are discarded, as well as loss of quantum efficiency, resulting in efficiency reduction. To address these issues, CIGS solar cells were produced by forming buffer layers with various ratios of ZnO and ZnS (2:1, 4:1, 6:1, 8:1). In addition, to effectively prevent impurity diffusion between stainless steel substrate and Mo electrode, SiO 2 layer with thicknesses of 100, 200, 350, and 500 nm were formed. As a result, the cell applied Zn(O,S) at a ratio of 6:1 showed an efficiency of 11.179%, and a 500 nm SiO 2 barrier layer was applied to obtain the highest efficiency of 14.840%.
ISSN:1975-0102
2093-7423
DOI:10.1007/s42835-023-01631-8