File(s) under permanent embargo
Reason: This item is currently closed access.
Effect of varying deposition and substrate temperature on sublimated CdTe thin film photovoltaics
conference contribution
posted on 2016-11-03, 15:56 authored by Amit Munshi, Jason M. Kephart, Ali AbbasAli Abbas, Tushar M. Shimpi, Kurt L. Barth, Michael WallsMichael Walls, Walajabad S. SampathA standardized process used for fabrication of CdTe solar cells was varied by increasing the substrate temperature during CdTe layer nucleation from approximately 460ºC to 610ºC and by increasing the CdTe sublimation vapor source temperature. Higher substrate temperatures increase device efficiency, but cause significant CdS re-sublimation. This effect was eliminated by using a Mg1-xZnxO window layer that also has higher transparency. Elevated CdTe source temperatures were found to increase contamination in the deposition system but did not further improve device efficiency. The improvement using high substrate temperatures is attributed to larger CdTe grains and better crystalline quality. TEM cross section analysis, X-ray diffraction measurements and device results are presented.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
43rd IEEE Photovoltaics Specialist ConferencePages
465 - 469 (5)Citation
MUNSHI, A. ...et al., 2016. Effect of varying deposition and substrate temperature on sublimated CdTe thin film photovoltaics. Presented at the 43rd IEEE Photovoltaics Specialist Conference, Portland, OR, 5-10th June, pp.465-469.Publisher
IEEEVersion
- VoR (Version of Record)
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/Acceptance date
2016-10-10Publication date
2016Notes
This paper is in closed access. This paper was developed into a journal paper and can be read at: https://dspace.lboro.ac.uk/2134/22354ISBN
9781509027248Publisher version
Language
- en