A Comparative study of BSF layers for ultra-thin CdS: O/CdTe solar cells

M. A. Islam, Yusuf Sulaiman, Nowshad Amin

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Due to high electron affinity and consequently large work function of CdTe, the CdTe based solar cells are suffering from ohmic contacting problem at the back contact. Among the several numbers of methods still used try to overcome the ohmic contacting problem, the use of back surface field (BSF) material is found to be better, effective and easier one. The conventional CdS/CdTe solar cell was modified by nano-crystalline CdS:O window layer and Sb2Te3, As2Te3 and ZnTe as a BSF layer inserted after the CdTe layer. The cell performances are investigated by detailed described on external quantum efficiency (QE), and dark and light I-V characteristics by recognized simulator 'Analysis of Micro-electronics and Photonic Structures' (AMPS-1D). The temperature and light intensity variation effects also described to understand the environmental effect on the cell performance. The results have shown that the BSF layers enhance the cell performances and have no adverse effect on cell stability as the condition of circumstance are changed. However, the results have shown that the structure ZnO/CdS:O/CdTe/Sb2Te3/Ag gives highest efficiency, exhibits a low series resistance and high shunt resistance also. The cell with ZnTe is shown to produce important series resistance problems because of an unfavorable hetero-junction with CdTe.

Original languageEnglish
Pages (from-to)65-75
Number of pages11
JournalChalcogenide Letters
Volume8
Issue number2
Publication statusPublished - Feb 2011

Fingerprint

Solar cells
solar cells
cells
Electron affinity
Quantum efficiency
Microelectronics
Photonics
AMPS (satellite payload)
Environmental impact
Simulators
Crystalline materials
shunts
electron affinity
microelectronics
luminous intensity
simulators
quantum efficiency
photonics
Temperature
temperature

Keywords

  • AMPS-1D
  • BSF layers
  • CdS:O window layer
  • CdTe thin film solar cell

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Chemistry(all)
  • Physics and Astronomy(all)

Cite this

Islam, M. A., Sulaiman, Y., & Amin, N. (2011). A Comparative study of BSF layers for ultra-thin CdS: O/CdTe solar cells. Chalcogenide Letters, 8(2), 65-75.

A Comparative study of BSF layers for ultra-thin CdS : O/CdTe solar cells. / Islam, M. A.; Sulaiman, Yusuf; Amin, Nowshad.

In: Chalcogenide Letters, Vol. 8, No. 2, 02.2011, p. 65-75.

Research output: Contribution to journalArticle

Islam, MA, Sulaiman, Y & Amin, N 2011, 'A Comparative study of BSF layers for ultra-thin CdS: O/CdTe solar cells', Chalcogenide Letters, vol. 8, no. 2, pp. 65-75.
Islam, M. A. ; Sulaiman, Yusuf ; Amin, Nowshad. / A Comparative study of BSF layers for ultra-thin CdS : O/CdTe solar cells. In: Chalcogenide Letters. 2011 ; Vol. 8, No. 2. pp. 65-75.
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