NDLI: Opto-electronic characterization of CdTe solar cells from TCO to back contact with nano-scale CL probe

Content Provider	IEEE Xplore Digital Library
Author	Moseley, J. Al-Jassim, M.M. Paudel, N. Mahabaduge, H. Kuciauskas, D. Guthrey, H.L. Duenow, J. Yan, Y. Metzger, W.K. Ahrenkiel, R.K.
Copyright Year	2015
Description	Author affiliation: Univ. of Toledo, Toledo, OH, USA (Paudel, N.; Yan, Y.) \|\| Nat. Renewable Energy Lab., Golden, CO, USA (Moseley, J.; Al-Jassim, M.M.; Mahabaduge, H.; Kuciauskas, D.; Guthrey, H.L.; Duenow, J.; Metzger, W.K.; Ahrenkiel, R.K.)
Abstract	We used cathodoluminescence (CL) (spectrum-per-pixel) imaging on beveled CdTe solar cell sections to investigate the opto-electronic properties of these devices from the TCO to the back contact. We used a nano-scale CL probe to resolve luminescence from grain boundary (GB) and grain interior (GI) locations near the CdS/CdTe interface where the grains are very small. As-deposited, CdCl2-treated, Cu-treated, and (CdCl2+Cu)-treated cells were analyzed. Color-coded CL spectrum imaging maps on bevels illustrate the distribution of the T=6 K luminescence transitions through the depth of devices with unprecedented spatial resolution. The CL at the GBs and GIs is shown to vary significantly from the front to the back of devices and is a sensitive function of processing. Supporting D-SIMS depth profile, TRPL lifetime, and C-V measurements are used to link the CL data to the J-V performance of devices.
Starting Page	1
Ending Page	4
File Size	6979767
Page Count	4
File Format	PDF
e-ISBN	9781479979448
DOI	10.1109/PVSC.2015.7355934
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Chlorine II-VI semiconductor materials Cadmium compounds Photovoltaic cells Luminescence Imaging Image resolution opto-electronic properties cathodoluminescence CdTe solar cells grain boundaries
Content Type	Text
Resource Type	Article

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