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An investigation of the role of recombination processes in the operation of InAs/GaAsi,Sbx quantum dot solar cells

Cheng, Y; Meleco, AJ; Roeth, AJ; Whiteside, VR; Debnath, MC; Santos, MB; Mishima, TD; ... Sellers, IR; + view all (2018) An investigation of the role of recombination processes in the operation of InAs/GaAsi,Sbx quantum dot solar cells. In: 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC). (pp. pp. 14-17). IEEE: Washington, DC, USA. Green open access

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Abstract

The electroluminescence and photoluminescence from an InAs/GaAs1-xSbx quantum dot solar cell are investigated as a function of temperature and correlated to the PV characteristics of the cell over the same temperature range. Analysis of the dominant recombination mechanism is shown to change from radiative to non-radiative above ~ 150 K, which is consistent with a reduction in the Jsc (and Voc) at evaluated temperatures in these devices.

Type: Proceedings paper
Title: An investigation of the role of recombination processes in the operation of InAs/GaAsi,Sbx quantum dot solar cells
Event: IEEE 44th Photovoltaic Specialist Conference (PVSC)
Location: Washington, DC
Dates: 25 June 2017 - 30 June 2017
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/PVSC.2017.8366423
Publisher version: https://doi.org/10.1109/PVSC.2017.8366423
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10081120
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