ORCID Profile
0000-0001-6477-859X
Current Organisation
UNSW Sydney
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Publisher: Elsevier BV
Date: 10-2018
Publisher: Elsevier BV
Date: 04-2016
Publisher: Elsevier BV
Date: 03-2020
Publisher: Elsevier BV
Date: 03-2020
Publisher: Springer Science and Business Media LLC
Date: 11-03-2019
Publisher: American Chemical Society (ACS)
Date: 24-04-2020
Publisher: Elsevier BV
Date: 06-2019
Publisher: Elsevier BV
Date: 2019
Publisher: Wiley
Date: 29-01-2022
Abstract: Antimony sulfide is an emerging 1D nontoxic Earth‐abundant photovoltaic material with favorable wide bandgap as a suitable top‐cell candidate for multijunction tandem solar cells. However, the current fabrication technology for Sb 2 S 3 solar cells relies heavily on a high‐purity Sb 2 S 3 source, which limits its large‐scale deployment. Therefore, it is attractive to fabricate the Sb 2 S 3 solar cells directly from the raw stibnite source, which can be cost effective by avoiding the complicated, costly purification and refinement process of the stibnite ore, while reducing process‐emitted pollution. Herein, high‐quality Sb 2 S 3 films (thickness: ≈1 μm) by the vapor transport deposition of raw stibnite ore powder are obtained, followed by a sulfurization process to remove the surface oxides and facilitate alkali element redistribution. In this way, the particle size is increased from ≈500 nm to ≈1.5 μm, the carrier concentration of the Sb 2 S 3 film is increased from ≈10 15 to ≈10 16 cm −3 , and the power conversion efficiency of Sb 2 S 3 solar cell is increased by more than two times. Through the elemental distribution analysis, it is found that it is the redistribution of alkali elements introduced from the natural stibnite ore that induces the grain growth, contributes toward defect suppression, and leads toward enhanced device performance.
Publisher: Elsevier BV
Date: 03-2020
Publisher: American Chemical Society (ACS)
Date: 06-01-2021
No related grants have been discovered for Chuhan Sha.