Synthesis of sphere-like-crystal CdS powder and thin films using chemical residue in chemical bath deposition (CBD) for thin film solar cell application

Ameen M. Ali, Yulisa Yusoff, Lamya M. Ali, Halina Misran, Md Akhtaruzzaman, Mohammad A. Alghoul, Kamaruzzaman Sopian, Shahidan Radiman, Nowshad Amin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

CdS microcrystal, with sphere like morphology, was synthesised from the residue obtained after the chemical bath deposition (CBD) of CdS thin layers usually deposited for CdTe and/or CIGS thin film solar cells, specifically by recycling the chemical waste. The residue was collected and reused to deposit cadmium sulphide (CdS) thin films on glass substrate by thermal evaporation. The films were subsequently annealed in vacuum at 250 °C, 350 °C and 420 °C for 40 min. The structural and optical properties were characterized by XRD, SEM, and UV–Vis spectrometry. All the films were found to exhibit high transmittance (over 70 to 90%). The optical band gap energy was found to be in the range of 2.28–2.37 eV, which is very suitable to be used as buffer or window for CdTe or CIGS thin film solar cells.

Original languageEnglish
Pages (from-to)120-125
Number of pages6
JournalSolar Energy
Volume173
DOIs
StatePublished - Oct 2018

Bibliographical note

Publisher Copyright:
© 2018 Elsevier Ltd

Keywords

  • CBD
  • CdS
  • Residue
  • Thermal evaporation
  • Thin films

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • General Materials Science

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