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Solution-Processable Cu3BiS3Thin Films: Growth Process Insights and Increased Charge Generation Properties by Interface Modification
- Source :
- ACS Applied Materials & Interfaces; September 2023, Vol. 15 Issue: 35 p41624-41633, 10p
- Publication Year :
- 2023
-
Abstract
- Cu3BiS3thin films are fabricated via spin coating of precursor solutions containing copper and bismuth xanthates onto planar glass substrates or mesoporous metal oxide scaffolds followed by annealing at 300 °C to convert the metal xanthates into copper bismuth sulfide. Detailed insights into the film formation are gained from time-resolved simultaneous small and wide angle X-ray scattering measurements. The Cu3BiS3films show a high absorption coefficient and a band gap of 1.55 eV, which makes them attractive for application in photovoltaic devices. Transient absorption spectroscopic measurements reveal that charge generation yields in mesoporous TiO2/Cu3BiS3heterojunctions can be significantly improved by the introduction of an In2S3interlayer, and long-lived charge carriers (t50%of 10 μs) are found.
Details
- Language :
- English
- ISSN :
- 19448244
- Volume :
- 15
- Issue :
- 35
- Database :
- Supplemental Index
- Journal :
- ACS Applied Materials & Interfaces
- Publication Type :
- Periodical
- Accession number :
- ejs63812509
- Full Text :
- https://doi.org/10.1021/acsami.3c10297