2018 PVSC Halogen substitution CdTe Full paper print.pdf (738 kB)
Activation of thin film CdTe solar cells using a cadmium bromide treatment
conference contribution
posted on 2019-03-18, 14:35 authored by Rachael Greenhalgh, Ali Abbas, Amit Munshi, Tushar M. Shimpi, Kurt L. Barth, Walajabad S. Sampath, Jake BowersJake Bowers, Michael WallsMichael WallsThe activation of CdTe with a cadmium chloride
annealing treatment is a vital step in the fabrication of high
efficiency solar cells. Thin film MZO/CdTe cells have been
activated using CdBr2 instead of CdCl2 with a lower activation
process temperature. Using this method, CdBr2 does activate the
cell as revealed by J-V and EQE measurements. TEM and EDX
elemental maps from device cross-sections confirm that bromine
is present in the grain boundaries. TEM shows that the
treatment removes stacking faults at 425 °C. CdBr2 treatment
resulted in a relatively modest conversion efficiency of 5.49%
when treated at 375 °C. Nevertheless, the experiments shed
further light on the mechanisms involved in the activation.
Funding
The Loughborough University authors are grateful to UKERC for financial assistance through the EPSRC Supergen SuperSolar Hub and a studentship with the CDT in New and Sustainable Photovoltaics
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC) 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC)Citation
GREENHALGH, R.C. .... et al., 2018. Activation of thin film CdTe solar cells using a cadmium bromide treatment. Presented at the 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC) (A Joint Conference of 45th IEEE PVSC, 28th PVSEC & 34th EU PVSEC), Waikoloa Village, HI, USA, 10-15 June, pp. 2990 - 2993.Publisher
© IEEEVersion
- AM (Accepted Manuscript)
Acceptance date
2018-05-16Publication date
2018Notes
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.ISBN
9781538685297Publisher version
Language
- en