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Correlative Spectroscopy Mapping of the Prospective Photovoltaic Material Bournonite using Raman and Cathodoluminescence [dataset] Open Access
The polar material bournonite (CuPbSbS3) is of interest as a new absorber layer for thin-film photovoltaics. At present, efficiencies are low and there is a lack of fundamental knowledge on the structural and optoelectronic properties of the material in thin-film form. In this study, we report complete experimental Raman spectra, which are interpreted with the help of ab initio calculations. Raman maps reveal variation of relative peak intensities both within grains and across grains as most likely caused by crystal anisotropy. We also present correlated hyperspectral cathodoluminescence (CL) results and observe a red shift of the CL peak wavelength of 5 to 15 nm at the bournonite grain boundaries. Transmission electron microscopy reveals Cu enrichment along grain boundaries that, together with CuPb antisite and interstitial Cu point defect formation, is proposed to cause the luminescence red shift
Descriptions
- Resource type
- Dataset
- Contributors
- Creator:
Rigby, Oliver
1
Creator: Mendis, Budhika 1
1 Durham University
- Funder
-
Engineering and Physical Sciences Research Council
- Research methods
- Other description
- Keyword
- Bournonite
Grain boundaries
Raman spectra
Cathodoluminescence
- Subject
-
Grain boundaries
Raman effect
Cathodoluminescence
- Location
- Language
- Cited in
- Identifier
- ark:/32150/r1k930bx10h
doi:10.15128/r1k930bx10h
- Rights
- Creative Commons Attribution 4.0 International (CC BY)
- Publisher
-
Durham University
- Date Created
File Details
- Depositor
- B.G. Mendis
- Date Uploaded
- 14 April 2025, 13:04:26
- Date Modified
- 15 April 2025, 14:04:25
- Audit Status
- Audits have not yet been run on this file.
- Characterization
-
File format: zip (ZIP Format)
Mime type: application/zip
File size: 76132038
Last modified: 2025:04:15 13:17:01+01:00
Filename: CuPbSbS3 Map Data.zip
Original checksum: a28a63c0c0ed19f53ec78e756847b572
User Activity | Date |
---|---|
User N. Syrotiuk has updated Correlative Spectroscopy Mapping of the Prospective Photovoltaic Material Bournonite using Raman and Cathodoluminescence [dataset] | 8 days ago |
User B.G. Mendis has updated CuPbSbS3 Map Data.zip | 9 days ago |
User B.G. Mendis has deposited CuPbSbS3 Map Data.zip | 9 days ago |