Recombination Analysis in Cadmium Telluride Photovoltaic Solar Cells With Photoluminescence Spectroscopy

Darius Kuciauskas; Patricia Dippo; Wyatt Metzger; Zhibo Zhao; Long Cheng; Markus Gloeckler; Ana Kanevce

doi:10.1109/JPHOTOV.2015.2483366

Recombination Analysis in Cadmium Telluride Photovoltaic Solar Cells With Photoluminescence Spectroscopy

Darius Kuciauskas, Patricia Dippo, Wyatt Metzger, Zhibo Zhao, Long Cheng, Markus Gloeckler, Ana Kanevce

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Abstract

We used photoluminescence (PL) spectroscopy to study recombination in polycrystalline CdS/CdTe photovoltaic solar cells with open-circuit voltages in the range of 0.899-0.895 V. From PL emission spectra, we identified defects with an activation energy of 0.11-0.12 eV in the junction and back-contact regions. At <100 K, lifetimes in devices were similar to those in single crystals and ranged from 300-400 ns. Strong lifetime temperature dependence at 100-300 K suggests the presence of a relatively shallow recombination center. Therefore, it is possible that in CdTe solar cells, lifetime is limited by relatively shallow defects.

Original language	American English
Article number	7299259
Pages (from-to)	313-318
Number of pages	6
Journal	IEEE Journal of Photovoltaics
Volume	6
Issue number	1
DOIs	https://doi.org/10.1109/JPHOTOV.2015.2483366 https://doi.org/10.1109/JPHOTOV.2015.2483366
State	Published - Jan 2016

Bibliographical note

Publisher Copyright:
© 2011-2012 IEEE.

NREL Publication Number

NREL/JA-5J00-64313

Keywords

Cadmium telluride
photovoltaic (PV) device
recombination
time-resolved photoluminescence (TRPL)

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title = "Recombination Analysis in Cadmium Telluride Photovoltaic Solar Cells With Photoluminescence Spectroscopy",

abstract = "We used photoluminescence (PL) spectroscopy to study recombination in polycrystalline CdS/CdTe photovoltaic solar cells with open-circuit voltages in the range of 0.899-0.895 V. From PL emission spectra, we identified defects with an activation energy of 0.11-0.12 eV in the junction and back-contact regions. At <100 K, lifetimes in devices were similar to those in single crystals and ranged from 300-400 ns. Strong lifetime temperature dependence at 100-300 K suggests the presence of a relatively shallow recombination center. Therefore, it is possible that in CdTe solar cells, lifetime is limited by relatively shallow defects.",

keywords = "Cadmium telluride, photovoltaic (PV) device, recombination, time-resolved photoluminescence (TRPL)",

author = "Darius Kuciauskas and Patricia Dippo and Wyatt Metzger and Zhibo Zhao and Long Cheng and Markus Gloeckler and Ana Kanevce",

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doi = "10.1109/JPHOTOV.2015.2483366",

language = "American English",

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AU - Kuciauskas, Darius

AU - Dippo, Patricia

AU - Metzger, Wyatt

AU - Zhao, Zhibo

AU - Cheng, Long

AU - Gloeckler, Markus

AU - Kanevce, Ana

PY - 2016/1

Y1 - 2016/1

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AB - We used photoluminescence (PL) spectroscopy to study recombination in polycrystalline CdS/CdTe photovoltaic solar cells with open-circuit voltages in the range of 0.899-0.895 V. From PL emission spectra, we identified defects with an activation energy of 0.11-0.12 eV in the junction and back-contact regions. At <100 K, lifetimes in devices were similar to those in single crystals and ranged from 300-400 ns. Strong lifetime temperature dependence at 100-300 K suggests the presence of a relatively shallow recombination center. Therefore, it is possible that in CdTe solar cells, lifetime is limited by relatively shallow defects.

KW - Cadmium telluride

KW - photovoltaic (PV) device

KW - recombination

KW - time-resolved photoluminescence (TRPL)

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M1 - 7299259

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Recombination Analysis in Cadmium Telluride Photovoltaic Solar Cells With Photoluminescence Spectroscopy

Abstract

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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