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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
Date Modified
15 April 2025, 14:04:25
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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
Activity of users you follow
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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