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Title: Enhancing the photovoltaic performance of CdTe/CdS solar cell via luminescent downshifting using K{sub 2}SiF{sub 6}:Mn{sup 4+} phosphors

Abstract

The efficiency of CdTe/CdS solar cell can be significantly improved by using luminescent down-shifting material on their front surface. Taking this into account a red emitting phosphor K{sub 2}Si{sub 1-x}F{sub 6}:xMn{sup 4+} (x=10 to 25 mol %) has been synthesized through wet chemical method. The as-synthesized materials were characterized by powder x-ray diffraction (XRD) and photoluminescence (PL) techniques. The photoluminescence studies of K{sub 2}SiF{sub 6}:Mn{sup 4+} revealed enhancement in the emission intensity, when Mn{sup 4+} concentration was increased from 10 mol % to 25 mol %. This red emitting phosphor efficiently absorbs the photons typically in the region 300-500 nm and re-emits in the region where the photovoltaic device exhibits significantly better response. The results show the possibility of enhancing the photovoltaic conversion efficiency of CdTe thin film solar cell by modifying the absorption spectra and utilising the energy in the UV-blue part of the solar spectrum.

Authors:
 [1];  [2]
  1. Physics Department, Shri Ramdeobaba College of Engineering & Management, Katol Road, Nagpur 440013 (India)
  2. Department of Physics, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur 440010 (India)
Publication Date:
OSTI Identifier:
22608884
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1731; Journal Issue: 1; Conference: DAE solid state physics symposium 2015, Uttar Pradesh (India), 21-25 Dec 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; ABSORPTION SPECTRA; CADMIUM SULFIDES; CADMIUM TELLURIDES; CONCENTRATION RATIO; EFFICIENCY; FLUORINE COMPOUNDS; MANGANESE ADDITIONS; PHOTOLUMINESCENCE; PHOTONS; PHOTOVOLTAIC CONVERSION; PHOTOVOLTAIC EFFECT; POTASSIUM COMPOUNDS; POWDERS; SILICON COMPOUNDS; SOLAR CELLS; SURFACES; THIN FILMS; X-RAY DIFFRACTION

Citation Formats

Talewar, R. A., E-mail: talewarrupesh@gmail.com, Joshi, C. P., and Moharil, S. V. Enhancing the photovoltaic performance of CdTe/CdS solar cell via luminescent downshifting using K{sub 2}SiF{sub 6}:Mn{sup 4+} phosphors. United States: N. p., 2016. Web. doi:10.1063/1.4948185.
Talewar, R. A., E-mail: talewarrupesh@gmail.com, Joshi, C. P., & Moharil, S. V. Enhancing the photovoltaic performance of CdTe/CdS solar cell via luminescent downshifting using K{sub 2}SiF{sub 6}:Mn{sup 4+} phosphors. United States. doi:10.1063/1.4948185.
Talewar, R. A., E-mail: talewarrupesh@gmail.com, Joshi, C. P., and Moharil, S. V. Mon . "Enhancing the photovoltaic performance of CdTe/CdS solar cell via luminescent downshifting using K{sub 2}SiF{sub 6}:Mn{sup 4+} phosphors". United States. doi:10.1063/1.4948185.
@article{osti_22608884,
title = {Enhancing the photovoltaic performance of CdTe/CdS solar cell via luminescent downshifting using K{sub 2}SiF{sub 6}:Mn{sup 4+} phosphors},
author = {Talewar, R. A., E-mail: talewarrupesh@gmail.com and Joshi, C. P. and Moharil, S. V.},
abstractNote = {The efficiency of CdTe/CdS solar cell can be significantly improved by using luminescent down-shifting material on their front surface. Taking this into account a red emitting phosphor K{sub 2}Si{sub 1-x}F{sub 6}:xMn{sup 4+} (x=10 to 25 mol %) has been synthesized through wet chemical method. The as-synthesized materials were characterized by powder x-ray diffraction (XRD) and photoluminescence (PL) techniques. The photoluminescence studies of K{sub 2}SiF{sub 6}:Mn{sup 4+} revealed enhancement in the emission intensity, when Mn{sup 4+} concentration was increased from 10 mol % to 25 mol %. This red emitting phosphor efficiently absorbs the photons typically in the region 300-500 nm and re-emits in the region where the photovoltaic device exhibits significantly better response. The results show the possibility of enhancing the photovoltaic conversion efficiency of CdTe thin film solar cell by modifying the absorption spectra and utilising the energy in the UV-blue part of the solar spectrum.},
doi = {10.1063/1.4948185},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1731,
place = {United States},
year = {2016},
month = {5}
}