C.J. Bosson
Crystal structure and cation disorder in bulk Cu2ZnSnS4 using neutron diffraction and X-ray anomalous scattering
Bosson, C.J.; Birch, M.T.; Halliday, D.P.; Knight, K.S.; Tang, C.C.; Kleppe, A.K.; Hatton, P.D.
Authors
M.T. Birch
Professor Douglas Halliday d.p.halliday@durham.ac.uk
Professor
K.S. Knight
C.C. Tang
A.K. Kleppe
Professor Peter Hatton p.d.hatton@durham.ac.uk
Professor
Abstract
Cu2ZnSnS4 (CZTS) is a promising material for the absorber layer in sustainable thin film photovoltaic cells, but its best efficiencies are currently limited by low open-circuit voltages, thought to be due to defects such as disorder between the copper and zinc lattice sites. Samples of CZTS with stoichiometric and Cu-poor, Zn-rich (optimally doped for device application) starting compositions were fabricated by solid state reaction and their crystal structures were investigated using high-resolution neutron diffraction and anomalous scattering synchrotron X-ray diffraction. Both samples were found to be exclusively kesterite with significant mixing of Cu and Zn on the 2a, 2c, and 2d Wyckoff sites but negligible defect presence on the Sn 2b or S 8g sites. Importantly, the occupancies of the 2a and 2c sites were found to be identical, meaning the kesterite symmetry is preserved
Citation
Bosson, C., Birch, M., Halliday, D., Knight, K., Tang, C., Kleppe, A., & Hatton, P. (2016). Crystal structure and cation disorder in bulk Cu2ZnSnS4 using neutron diffraction and X-ray anomalous scattering. In 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC) : Portland, OR, 5-10 June 2016 ; proceedings (0405-0410). https://doi.org/10.1109/pvsc.2016.7749621
Conference Name | 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC) |
---|---|
Conference Location | Portland, OR |
Start Date | Jun 5, 2016 |
End Date | Jun 10, 2016 |
Acceptance Date | Jun 5, 2016 |
Online Publication Date | Nov 21, 2016 |
Publication Date | Nov 21, 2016 |
Deposit Date | Mar 1, 2017 |
Publicly Available Date | Mar 1, 2017 |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 0405-0410 |
Series Title | IEEE Photovoltaic Specialists Conference (PVSC) |
Book Title | 2016 IEEE 43rd Photovoltaic Specialists Conference (PVSC) : Portland, OR, 5-10 June 2016 ; proceedings. |
DOI | https://doi.org/10.1109/pvsc.2016.7749621 |
Files
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© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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