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Sb 2 (Se 1‐x S x ) 3 Thin‐Film Solar Cells Fabricated by Single‐Source Vapor Transport Deposition
Author(s) -
Lu Shuaicheng,
Zhao Yang,
Wen Xixing,
Xue DingJiang,
Chen Chao,
Li Kanghua,
Kondrotas Rokas,
Wang Chong,
Tang Jiang
Publication year - 2019
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.201800280
Subject(s) - materials science , evaporation , thin film , crystallinity , deposition (geology) , chemical vapor deposition , analytical chemistry (journal) , fabrication , layer (electronics) , solar cell , crystallography , optoelectronics , nanotechnology , chemistry , composite material , physics , paleontology , sediment , biology , medicine , alternative medicine , chromatography , pathology , thermodynamics
The properties of Sb 2 (Se 1‐x S x ) 3 alloy films can be continuously tuned by changing its composition, enabling potentially better device efficiency compared to the Sb 2 S 3 or Sb 2 Se 3 counterparts. Fabrication of Sb 2 (Se 1−x S x ) 3 films with good uniformity and orientation are prerequisites to realize their full potential. Here, pure‐phase and high‐uniformity Sb 2 (Se 1‐x S x ) 3 absorbers are successfully produced via a vapor transport deposition method employing a single evaporation source. Increasing the travelling distance of vapor particles can improve the morphology and crystallinity of Sb 2 (Se 1‐x S x ) 3 films, and as a result, compact Sb 2 (Se 1‐x S x ) 3 films with strong preferential [221] orientation and uniform composition throughout the whole film are obtained. Further, the CdS surface is treated with H 2 O 2 solution and a device with a champion efficiency of 6.30% is obtained, a new efficiency record for Sb 2 (Se 1‐x S x ) 3 based thin‐film solar cells without a hole‐transporting layer.