Growth optimization of ZnxCd1-xS films on ITO and FTO coated glass for alternative buffer application in CdTe thin film solar cells

M. S. Hossain, K. S. Rahman, M. A. Islam, M. Akhtaruzzaman, H. Misran, Mohammad Alghoul, N. Amin

Research output: Contribution to journalJournal articlepeer-review

20 Scopus citations

Abstract

In this study, ZnxCd1-xS/CdTe solar cells were fabricated on commercially available indium tin oxide (In2O3: Sn or ITO) and fluorine doped tin oxide (SnO2: F or FTO) soda-lime glass (SLG) substrates by RF magnetron sputtering. Thin ZnxCd1-xS window layers with lower zinc (Zn) content in comparison to cadmium (Cd) were deposited by co-sputtering of ZnS and CdS targets concurrently by changing the radio frequency (RF) power of both during sputtering. CdTe thin films for the complete cells were also grown by sputtering with different thickness. Prior to fabricating the complete device, characterization for growth optimization of ZnxCd1-xS window layer and CdTe absorber layer was performed by utilizing Energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Ultraviolet–visible spectroscopy (UV–Vis), Field Emission Scanning Electron Microscopy (FESEM) and Hall effect measurement system. Complete ZnxCd1-xS/CdTe solar cells were fabricated with the optimized growth conditions of window and absorber layers. The best cell fabricated on ITO coated SLG substrates showed an efficiency of 8.08% with significant open circuit voltage (Voc) of 882 mV.

Original languageEnglish
Pages (from-to)270-277
Number of pages8
JournalOptical Materials
Volume86
DOIs
StatePublished - Dec 2018

Keywords

  • CdTe
  • EDX
  • FESEM
  • Solar cells
  • XRD
  • ZnCdS

Fingerprint

Dive into the research topics of 'Growth optimization of ZnxCd1-xS films on ITO and FTO coated glass for alternative buffer application in CdTe thin film solar cells'. Together they form a unique fingerprint.

Cite this