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The effect of Cadmium Chloride treatment on close spaced sublimated Cadmium Telluride thin film solar cells

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journal contribution
posted on 17.03.2016, 14:27 by Ali AbbasAli Abbas, Geoff West, Jake BowersJake Bowers, Patrick IsherwoodPatrick Isherwood, Piotr Kaminski, Bianca Maniscalco, Paul Rowley, Michael WallsMichael Walls, K. Barricklow, Walajabad S. Sampath, Kurt L. Barth
The aim of this investigation is to apply advanced microstructural characterization techniques to study the effect of the cadmium chloride treatment on the physical properties of cadmium telluride solar cells deposited via close-spaced sublimation (CSS) and relate these to cell performance. A range of techniques have been used to observe the microstructural changes as well as the chemical changes before and after cadmium chloride treatment. Electrical measurements that link the device performance with the microstructural properties of the cells have also been undertaken. Transmission Electron Microscopy (TEM) has revealed high densities of stacking faults in the as-grown CdTe samples. Further, it has been observed that these stacking faults are removed during the cadmium chloride treatment. These observations show that the presence of chlorine plays an important role in the removal of these defects and the subsequent production of high efficiency thin film CdTe solar cells. Elemental analysis in the TEM indicates chlorine rich regions appearing at the CdTe/CdS interface as well as at grain boundaries after the treatment.

Funding

The authors are grateful to EPSRC and TSB for funding (Loughborough University) and to the NSF I/UCRC and AIR programs (Colorado State University).

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

2012 IEEE 38TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC), VOL 2

Pages

? - ? (6)

Citation

ABBAS, A. ...et al., 2013. The effect of Cadmium Chloride treatment on close spaced sublimated Cadmium Telluride thin film solar cells.IEEE 38TH Photovoltaic Specialists Conference (PVSC), Austin, TX, 3-8th June, Vol. 2, pp1-6.

Publisher

© IEEE

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2013

Notes

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.

ISSN

0160-8371

Language

en

Location

Austin, TX