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Title: Effect of varying deposition and substrate temperature on sublimated CdTe thin film photovoltaics
Authors: Munshi, Amit
Kephart, Jason M.
Abbas, Ali
Shimpi, Tushar M.
Barth, Kurt L.
Walls, Michael
Sampath, Walajabad S.
Issue Date: 2016
Publisher: IEEE
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.
Abstract: A 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.
Description: This paper is in closed access. This paper was developed into a journal paper and can be read at: https://dspace.lboro.ac.uk/2134/22354
Version: Published
DOI: 10.1109/PVSC.2016.7749636
URI: https://dspace.lboro.ac.uk/2134/23051
Publisher Link: http://dx.doi.org/10.1109/PVSC.2016.7749636
ISBN: 9781509027248
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

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