Efficient and stable TiO2/Sb2S3 planar solar cells from absorber crystallization and Se-atmosphere annealing

Deng, Hui1; Yuan, Shengjie1,2; Yang, Xiaokun1; Cai, Fensha1; Hu, Chao1; Qiao, Keke1; Zhang, Jian1; Tang, Jiang1; Song, Haisheng1; He, Zhubing2

2017-03

10.1016/j.mtener.2017.02.001

Materials Today Energy   影响因子和分区

2468-6069

Inorganic Sb2S3 thin film solar cells show wide application prospects in low cost, non-toxicity and high stability solar cells comparing with well-developed CIGS, CdTe and organohalide perovskite materials. The present work successfully fabricated Sb2S3 film utilizing rapid thermal evaporation (RTE) method. By optimizing the crystal growth technique, smooth and non-pinhole Sb2S3 film was deposited on compact TiO2 substrate. The corresponding planar TiO2/Sb2S3 solar cells without hole transport material (HTM) assistance achieved an efficiency of 2.5%. To eliminate S-shape J-V curves and improve the fill factor, the as-deposited Sb2S3 film was further annealed in selenium atmosphere. The efficiency and fill factor of Se-atmosphere annealed Sb2S3 devices were improved to 3.2% and 55%, respectively. The device improvement mechanism of Se-annealing process were systematically illustrated by cryogenic measurements, impedance analysis and capacitance-voltage characterizations. The post-annealing could help to improve junction quality, passivate absorber defects and decrease back contact barrier. The Se-atmosphere annealed Sb2S3 devices could stand continuous one sun illumination for 400 h and the efficiency was almost the same. After storing in air for six months, the average efficiencies still hold more than 90% of initial value. The present developed environment-friendly stable devices and efficient treatment technique were expected to enrich the research of thin film solar cell. (C) 2017 Elsevier Ltd. All rights reserved.

ESCI ; EI ; SCI

英语

其他

Wuhan National Laboratory for Optoelectronics[] ; [20130142120075] ; Shenzhen Science and Technology Innovation Commission[JCYJ20150529152146471] ; National Natural Science Foundation of China[61306137] ; [HUST:2016YXMS032] ; [FRG-SUSTC1501A-67]

Materials Science

Materials Science, Multidisciplinary

WOS:000439095100003

ELSEVIER SCI LTD

20184506044907

Annealing ; Antimony compounds ; Cadmium telluride ; Capacitance ; Efficiency ; II-VI semiconductors ; Perovskite ; Perovskite solar cells ; Selenium compounds ; Solar absorbers ; Solar cells ; Thermal evaporation ; Thin film solar cells ; Thin films ; Titanium dioxide

Minerals:482.2 ; Heat Treatment Processes:537.1 ; Solar Energy and Phenomena:657.1 ; Electricity: Basic Concepts and Phenomena:701.1 ; Solar Cells:702.3 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Production Engineering:913.1

Web of Science

1.Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, WNLO, 1037 Luoyu Rd, Wuhan 430074, Hubei, Peoples R China;
2.South Univ Sci & Technol China, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Deng, Hui,Yuan, Shengjie,Yang, Xiaokun,et al. Efficient and stable TiO2/Sb2S3 planar solar cells from absorber crystallization and Se-atmosphere annealing[J]. Materials Today Energy,2017,3:15-23.

Deng, Hui.,Yuan, Shengjie.,Yang, Xiaokun.,Cai, Fensha.,Hu, Chao.,...&He, Zhubing.(2017).Efficient and stable TiO2/Sb2S3 planar solar cells from absorber crystallization and Se-atmosphere annealing.Materials Today Energy,3,15-23.

Deng, Hui,et al."Efficient and stable TiO2/Sb2S3 planar solar cells from absorber crystallization and Se-atmosphere annealing".Materials Today Energy 3(2017):15-23.