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Preparation of a novel Bi9O7.5S6/SnS composite film with improved photoelectric properties.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 9/28/2023, Vol. 52 Issue 36, p12862-12868, 7p
- Publication Year :
- 2023
-
Abstract
- Atomically thin two-dimensional (2D) bismuth oxychalcogenides have been considered as promising candidates for high-speed and low-power photoelectronic devices due to their high charge carrier mobility and excellent environmental stability. However, the photoelectric performance of their bulk materials still falls short of expectations. Herein, a novel Bi<subscript>9</subscript>O<subscript>7.5</subscript>S<subscript>6</subscript>/SnS composite film with a type-II heterojunction was successfully prepared by combining hydrothermal and knife-coating techniques. The crystal structure, morphology, and optical properties were systematically investigated. Under 1 V bias voltage, the photocurrent of the Bi<subscript>9</subscript>O<subscript>7.5</subscript>S<subscript>6</subscript>/SnS composite film can be obtained as 107 μA cm<superscript>−2</superscript>, which is about 29.9 times and 93.9 times higher than that of bare Bi<subscript>9</subscript>O<subscript>7.5</subscript>S<subscript>6</subscript> and SnS, respectively. The type-II heterojunction has played a significant role in improving the photoelectric performance of the Bi<subscript>9</subscript>O<subscript>7.5</subscript>S<subscript>6</subscript>/SnS composite film by facilitating the separation and transfer of photo-generated carriers. This work sheds light on the design and development of new bismuth-based composite materials for advanced photoelectric and photocatalytic applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 52
- Issue :
- 36
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 172005749
- Full Text :
- https://doi.org/10.1039/d3dt02186f