Design of high efficient and stable ultra-thin CdTe solar cells with ZnTe as a potential BSF

Mrinmoy Dey, Maitry Dey, M. A. Matin, Nowshad Amin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

The polycrystalline ultra-thin cadmium telluride (CdTe) is familiar as the potential solar cell material for its higher efficiency, cost-effective, cell stability and clean generation of solar electricity. In this study, a numerical analysis has been performed utilizing AMPS (Analysis of Microelectronic and Photonic Structures) simulator to examine the cell performances (Voc, Jsc, FF and conversion efficiency) of ultra-thin CdTe solar cell. During the research, reduction of CdTe layer was done in the proposed cell and found that 1μm absorber layer is enough for acceptable range for cell conversion efficiency. The possibility of this ultra-thin CdTe absorber layer was examined, as one with 100 nm ZnTe back surface field (BSF) layer to minimize the recombination losses at the back contact and to reduce the barrier height in the valence band of the proposed cell. Higher conversion efficiency of 22.53% (Jsc = 24.28 mA/cm2, FF = 0.875, Voc = 1.06 V) has been achieved with only 0.8 μm of CdTe absorber layer along with 100 nm ZnTe BSF where as conversion efficiency is 18.68% (Jsc = 21.47 mA/cm2, FF = 0.85, Voc = 1.02 V) without BSF layer. Moreover, the proposed CdTe solar cell showed better stability as the normalized efficiency of the proposed cell linearly decreased with the increasing operating temperature at the gradient of -0.16%/°C.

Original languageEnglish
Title of host publication2015 International Conference on Green Energy and Technology, ICGET 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781509001682
DOIs
Publication statusPublished - 2 Nov 2015
Event3rd International Conference on Green Energy and Technology, ICGET 2015 - Dhaka, Bangladesh
Duration: 11 Sep 201512 Sep 2015

Other

Other3rd International Conference on Green Energy and Technology, ICGET 2015
CountryBangladesh
CityDhaka
Period11/9/1512/9/15

Fingerprint

Cadmium telluride
Solar cells
Conversion efficiency
Valence bands
Microelectronics
Photonics
Numerical analysis
Electricity
Simulators
Costs

Keywords

  • AMPS
  • Solar cell
  • Stability
  • Ultra-thin
  • ZnTe BSF

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

Cite this

Dey, M., Dey, M., Matin, M. A., & Amin, N. (2015). Design of high efficient and stable ultra-thin CdTe solar cells with ZnTe as a potential BSF. In 2015 International Conference on Green Energy and Technology, ICGET 2015 [7315079] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICGET.2015.7315079

Design of high efficient and stable ultra-thin CdTe solar cells with ZnTe as a potential BSF. / Dey, Mrinmoy; Dey, Maitry; Matin, M. A.; Amin, Nowshad.

2015 International Conference on Green Energy and Technology, ICGET 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7315079.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dey, M, Dey, M, Matin, MA & Amin, N 2015, Design of high efficient and stable ultra-thin CdTe solar cells with ZnTe as a potential BSF. in 2015 International Conference on Green Energy and Technology, ICGET 2015., 7315079, Institute of Electrical and Electronics Engineers Inc., 3rd International Conference on Green Energy and Technology, ICGET 2015, Dhaka, Bangladesh, 11/9/15. https://doi.org/10.1109/ICGET.2015.7315079
Dey M, Dey M, Matin MA, Amin N. Design of high efficient and stable ultra-thin CdTe solar cells with ZnTe as a potential BSF. In 2015 International Conference on Green Energy and Technology, ICGET 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7315079 https://doi.org/10.1109/ICGET.2015.7315079
Dey, Mrinmoy ; Dey, Maitry ; Matin, M. A. ; Amin, Nowshad. / Design of high efficient and stable ultra-thin CdTe solar cells with ZnTe as a potential BSF. 2015 International Conference on Green Energy and Technology, ICGET 2015. Institute of Electrical and Electronics Engineers Inc., 2015.
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AB - The polycrystalline ultra-thin cadmium telluride (CdTe) is familiar as the potential solar cell material for its higher efficiency, cost-effective, cell stability and clean generation of solar electricity. In this study, a numerical analysis has been performed utilizing AMPS (Analysis of Microelectronic and Photonic Structures) simulator to examine the cell performances (Voc, Jsc, FF and conversion efficiency) of ultra-thin CdTe solar cell. During the research, reduction of CdTe layer was done in the proposed cell and found that 1μm absorber layer is enough for acceptable range for cell conversion efficiency. The possibility of this ultra-thin CdTe absorber layer was examined, as one with 100 nm ZnTe back surface field (BSF) layer to minimize the recombination losses at the back contact and to reduce the barrier height in the valence band of the proposed cell. Higher conversion efficiency of 22.53% (Jsc = 24.28 mA/cm2, FF = 0.875, Voc = 1.06 V) has been achieved with only 0.8 μm of CdTe absorber layer along with 100 nm ZnTe BSF where as conversion efficiency is 18.68% (Jsc = 21.47 mA/cm2, FF = 0.85, Voc = 1.02 V) without BSF layer. Moreover, the proposed CdTe solar cell showed better stability as the normalized efficiency of the proposed cell linearly decreased with the increasing operating temperature at the gradient of -0.16%/°C.

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