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Issue 43, 2018
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Sequential deposition route to efficient Sb2S3 solar cells

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Abstract

We report a facile two-step sequential deposition method to prepare Sb2S3 thin films, where antimony acetate and thiourea are utilized as antimony and sulfur sources, respectively. The sequential deposition of two precursor materials followed by swift annealing at mild temperature leads to high-quality Sb2S3 films. The detailed reaction mechanism is revealed on the basis of structural and compositional analyses. By optimizing the concentration of thiourea and annealing temperature, uniform and flat Sb2S3 thin films are obtained with either sulfur-deficiency or sulfur richness. Finally, a planar heterojunction solar cell based on the as-prepared Sb2S3 film delivers a high power conversion efficiency of 5.69%, which is a top value for planar heterojunction Sb2S3 solar cells fabricated by a solution approach. This research provides a convenient and low-cost approach for the deposition of Sb2S3 films for efficient solar cell applications.

Graphical abstract: Sequential deposition route to efficient Sb2S3 solar cells

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Supplementary files

Article information


Submitted
27 Aug 2018
Accepted
08 Oct 2018
First published
10 Oct 2018

J. Mater. Chem. A, 2018,6, 21320-21326
Article type
Paper

Sequential deposition route to efficient Sb2S3 solar cells

L. Zhang, C. Wu, W. Liu, S. Yang, M. Wang, T. Chen and C. Zhu, J. Mater. Chem. A, 2018, 6, 21320
DOI: 10.1039/C8TA08296K

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