Research and application of TiO2/AZO bilayer electron transport structure

被引：0
作者：
Kuang, Xuanfei [1 ]
Chen, Yongjuan [1 ]
Liu, Zongtao [1 ]
Xiao, Yao [1 ]
Hong, Yang [1 ]
Liang, Zongcun [1 ]
机构：
[1] Sun Yat Sen Univ, Inst Solar Energy Syst, Sch Phys, Guangzhou 510006, Guangdong, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2024年 / 130卷 / 11期
关键词：
Passivation performance; Magnetron sputtering; TiO2; AZO; Bilayer ETL; PASSIVATING CONTACTS; SOLAR-CELLS; EFFICIENCY; INTERFACE;
D O I：
10.1007/s00339-024-08015-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
TiO2 films prepared by magnetron sputtering are investigated for their passivation effect on silicon wafers, along with the influence of post-annealing treatment on the passivation properties of TiO2 films. Considering TiO2 as an excellent electron transport material, this research explores the impact of thickness and post-annealing treatment on solar cells utilizing TiO2 as an electron transport layer (ETL). Furthermore, a TiO2/AZO bilayer electron transport layer is proposed and fabricated, enhancing carrier transport and extraction, thereby increasing the power conversion efficiency (PCE) of solar cells from 11.26% with TiO2 alone as the ETL to 13.96% with the TiO2/AZO bilayer ETL. The band structure is also analyzed to further investigate the internal carrier transport mechanism of the bilayer ETL.
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页数：9
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