Journal
APPLIED SURFACE SCIENCE
Volume 440, Issue -, Pages 294-299Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2018.01.090
Keywords
Sb2S3 solar cells; Surface treatment; Interface recombination
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Funding
- Distinguished Youth Foundation of Anhui Province [1708085J09]
- National Basic Research Program of China [2015CB932200]
- National Natural Science Foundation of China [21403247]
- Major/Innovative Program of Development Foundation of Hefei Center for Physical Science and Technology [2016FXZY003]
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Efficient antimony sulfide (Sb2S3)-sensitized solar cells were obtained by a sequential treatment with thioacetamide (TA) and 1-decylphosphonic acid (DPA). Compared with the untreated Sb2S3-sensitized solar cells, the power conversion efficiency of the treated Sb2S3 solar cells was improved by 1.80% to 3.23%. The TA treatment improved the Sb2S3 films by reducing impurities and decreasing the film's surface defects, which inhibited the emergence of recombination centers. The DPA treatment reduced the recombination between hole transport materials (HTMs) and the Sb2S3. Therefore, we have presented an efficient strategy to improve the performance of Sb2S3-sensitized solar cells. (C) 2018 Elsevier B.V. All rights reserved.
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