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http://bura.brunel.ac.uk/handle/2438/29907| Title: | TEM-based Cathodoluminescence of a Selenium-alloyed CdTe Solar Cell |
| Authors: | Fiducia, T Howkins, A Abbas, A Mendis, B Munshi, AH Barth, K Sampath, WS Walls, JM |
| Keywords: | photovoltaic cells;imaging;II-VI semiconductor materials;cadmium compounds;selenium;image resolution;xenon |
| Issue Date: | 15-Jun-2020 |
| Publisher: | Institute of Electrical and Electronics Engineers (IEEE) |
| Citation: | Fiducia, T. et al. (2020) 'TEM-based Cathodoluminescence of a Selenium-alloyed CdTe Solar Cell', 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), Virtual (Calgary, AB, Canada), 15 June-21 August, pp. 2233 - 2234. doi: 10.1109/PVSC45281.2020.9300484. |
| Abstract: | Since 2015, commercial sample holders have been available that enable cathodoluminescence imaging of semiconductors in the TEM. Despite this, issues with low signal have meant that high resolution TEM-CL imaging has so far not been achieved on a solar cell. Here, we use xenon ion milling and cryogenic sample cooling to boost signal from the TEM foil, enabling high resolution CL imaging of a bilayer CdSeTe/CdTe solar cell for the first time. The results show that selenium has a passivation effect on grain boundaries in alloyed CdSeTe material, helping to explain the superior performance of CdSeTe solar cells. |
| URI: | https://bura.brunel.ac.uk/handle/2438/29907 |
| DOI: | https://doi.org/10.1109/PVSC45281.2020.9300484 |
| ISBN: | 978-1-7281-6115-0 (ebk) |
| ISSN: | 0160-8371 978-1-7281-6116-7 (PoD) |
| Other Identifiers: | ORCiD: Ashley Howkins https://orcid.org/0000-0001-9435-523X |
| Appears in Collections: | The Experimental Techniques Centre |
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|---|---|---|---|---|
| FullText.pdf | Copyright © 2020 Institute of Electrical and Electronics Engineers (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 (see: https://journals.ieeeauthorcenter.ieee.org/become-an-ieee-journal-author/publishing-ethics/guidelines-and-policies/post-publication-policies/). | 466.31 kB | Adobe PDF | View/Open |
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