A low cost and single source atmospheric pressure vapor phase epitaxy of ZnS for thin film photovoltaic applications

Y. Yusoff, P. Chelvanathan, N. Kamaruddin, Md. Akhtaruzzaman, Nowshad Amin

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A novel and low cost vapor phase epitaxy (VPE) method using a single non-volatile source has been used to deposit ZnS thin films on soda lime glass substrates. Utilization of the non-volatile source eliminates the need for expensive and sophisticated reactors commonly used in conventional VPE. Instead, this experiment was carried out using inexpensive and easily attainable apparatus. The vapor phase reaction process described is also more compatible to the industry standard dry deposition processes of the other layers in the thin film solar cell stack for Cu(In,Ga)Se2 (CIGS), Cu2ZnSnS4 (CZTS) and CdTe photovoltaic (PV) devices. In this experiment, the substrate temperature was varied from 400 to 480 °C and the ZnS thin films produced were analyzed using X-ray diffractometry (XRD), optical spectroscopy, field emission scanning electron microscope (FESEM) and Hall effect measurement system. The films were found to be hexagonal structured except for the film deposited at 480 °C, where the film was found to be cubic. The thickness, bandgap and resistivity of the deposited films ranged from 54 to 351 nm, 3.18 to 3.83 eV and 2 × 103 to 1.6 × 104 Ω·cm respectively.

Original languageEnglish
Pages (from-to)216-219
Number of pages4
JournalMaterials Letters
Volume221
DOIs
Publication statusPublished - 15 Jun 2018

Fingerprint

Vapor phase epitaxy
vapor phase epitaxy
Atmospheric pressure
atmospheric pressure
Thin films
thin films
Costs
Hall effect
calcium oxides
Substrates
Lime
Field emission
X ray diffraction analysis
field emission
Energy gap
Electron microscopes
Deposits
solar cells
electron microscopes
Experiments

Keywords

  • Buffer layer
  • Chemical vapor deposition (CVD)
  • Photovoltaic (PV)
  • Thin films
  • Vapor phase epitaxy (VPE)
  • ZnS

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

A low cost and single source atmospheric pressure vapor phase epitaxy of ZnS for thin film photovoltaic applications. / Yusoff, Y.; Chelvanathan, P.; Kamaruddin, N.; Akhtaruzzaman, Md.; Amin, Nowshad.

In: Materials Letters, Vol. 221, 15.06.2018, p. 216-219.

Research output: Contribution to journalArticle

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