Evaluation of the effects and impacts of the CdSTe interlayer in CdS/CdTe solar cells through modeling and simulations

Mannir M. Aliyu, Sharafat Hossain, Md Aminul Islam, N. R. Hamzah, R. Karim, Kamaruzzaman Sopian, Nowshad Amin

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

1 Citation (Scopus)

Abstract

CdTe based solar cells have been well-recognized to be the most successful thin PV cells with their current industrial production. However, the needed improvement in output efficiency of these cells is constrained by major issues such the poor understanding of the ternary CdS xTe 1-x interlayer, formed at the CdS-CdTe interface. While it is believed to have both beneficial and negative effects on the cell performance, its exact mechanism and extent are not fully explored. In this work, the AMPS-1D software was deployed to model this interlayer, using several of its variables such as variable material properties, thickness, bandgap as well as the thickness of the bounding CdS layer. Results show that the interlayer thickness reduces cell performance, through Jsc, Voc, FF and J-V curves, with best efficiencies of 17.892% (Jsc=27.043mA/cm 2, Voc=0.871V, FF=0.8) obtained at zero thickness, falling down by nearly 20% at CdS xTe 1-x thickness of 100nm. As the bandgap is varied, maximum cell performance of 17.85% (Jsc=27.76A/cm 2, Voc=0.91V and FF=0.81) was found at 1.7eV. Similarly, increasing CdS thickness also reduces cell performance, by reducing the quantum efficiency. The results indicate that if the CdS xTe 1-x layer has a thickness of up to 100nm, and a bandgap of around 1.7eV, then cell efficiencies of around 18% are feasible even for ultra thin CdTe layers of 1μm.

Original languageEnglish
Title of host publicationProceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012
Pages17-21
Number of pages5
Publication statusPublished - 2012
Event2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012 - Dhaka
Duration: 5 Jan 20127 Jan 2012

Other

Other2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012
CityDhaka
Period5/1/127/1/12

Fingerprint

Solar cells
Energy gap
Quantum efficiency
Materials properties

Keywords

  • bandgap
  • CdS Te
  • efficiency
  • optical absorption
  • pinhole

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

Cite this

Aliyu, M. M., Hossain, S., Islam, M. A., Hamzah, N. R., Karim, R., Sopian, K., & Amin, N. (2012). Evaluation of the effects and impacts of the CdSTe interlayer in CdS/CdTe solar cells through modeling and simulations. In Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012 (pp. 17-21). [6153476]

Evaluation of the effects and impacts of the CdSTe interlayer in CdS/CdTe solar cells through modeling and simulations. / Aliyu, Mannir M.; Hossain, Sharafat; Islam, Md Aminul; Hamzah, N. R.; Karim, R.; Sopian, Kamaruzzaman; Amin, Nowshad.

Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012. 2012. p. 17-21 6153476.

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

Aliyu, MM, Hossain, S, Islam, MA, Hamzah, NR, Karim, R, Sopian, K & Amin, N 2012, Evaluation of the effects and impacts of the CdSTe interlayer in CdS/CdTe solar cells through modeling and simulations. in Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012., 6153476, pp. 17-21, 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012, Dhaka, 5/1/12.
Aliyu MM, Hossain S, Islam MA, Hamzah NR, Karim R, Sopian K et al. Evaluation of the effects and impacts of the CdSTe interlayer in CdS/CdTe solar cells through modeling and simulations. In Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012. 2012. p. 17-21. 6153476
Aliyu, Mannir M. ; Hossain, Sharafat ; Islam, Md Aminul ; Hamzah, N. R. ; Karim, R. ; Sopian, Kamaruzzaman ; Amin, Nowshad. / Evaluation of the effects and impacts of the CdSTe interlayer in CdS/CdTe solar cells through modeling and simulations. Proceedings of 2nd International Conference on the Developments in Renewable Energy Technology, ICDRET 2012. 2012. pp. 17-21
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