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Intragranular defects in As-deposited and Cadmium Chloride treated Polycrystalline Cadmium Telluride solar cells

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conference contribution
posted on 04.11.2016, 13:19 authored by Tom Fiducia, Ali Abbas, Kurt L. Barth, Walajabad S. Sampath, Michael WallsMichael Walls
Atomic-scale defects limit the open circuit Voltage, and the conversion efficiency of thin film polycrystalline cadmium telluride solar cells. Using state of the art aberration corrected high resolution transmission electron microscopy, the type, density and atomic structure of intragranular defects present in cadmium chloride treated and untreated CdTe has been established. The cadmium chloride activation process dramatically reduces defect density but faults do remain. Characterizing the defects in both materials is an essential first step to determining their potential electrical effects, and to understanding how the cadmium chloride treatment reduces their density. Improving our knowledge of the mechanisms involved can lead to further process improvements.

Funding

This work was funded by the UKERC Supergen SuperSolar Hub .

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

43rd IEEE Photovoltaics Specialist Conference (PVSC)

Pages

3366 - 3390 (5)

Citation

FIDUCIA, T. ...et al., 2016. Intragranular defects in As-deposited and Cadmium Chloride treated Polycrystalline Cadmium Telluride solar cells. Presented at the 43rd IEEE Photovoltaics Specialist Conference, Portland, OR, 5-10th June, pp. 3366-3390.

Publisher

© IEEE

Version

AM (Accepted Manuscript)

Acceptance date

10/10/2016

Publication date

2016

Notes

© 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.

ISBN

9781509027248

Language

en

Location

Portland, OR