Deposition of kesterite Cu2ZnSnS4 (CZTS) thin films by spin coating technique for solar cell application

Sanjay Kumar Swami, Anuj Kumar, Viresh Dutta

Research output: Contribution to journalConference articlepeer-review

79 Scopus citations

Abstract

The thin films of Cu2ZnSnS4 (CZTS) have been successfully deposited on soda lime glass by spin coating technique. CZTS films were prepared by spin coating of a solution prepared by dissolving of copper (II) chloride, zinc (II) chloride, tin (IV) chloride and Thiourea in 2-Methoxyethanol. The X-ray diffraction studies showed the formation of kesterite phase with the peaks corresponding to (112), (220) and (312) planes. Raman spectrum indicated the presence of principal kesterite peak at 333 cm -1. SEM study showed that the surface of CZTS film was uniform. The electrical measurements showed the p-type conductivity, resistivity ~0 -cm with carrier concentration ∼7.9×1019 cm-3and mobility ∼5.43 cm2 V-1s-1 at room temperature. CZTS film showed optical absorbance of 104 cm-1 with optical band gap of 1.5 eV. Thus, CZTS films can be made using a simple spin coating technique, but improvement in the film properties by post deposition needs to be done for making photovoltaic quality films.

Original languageEnglish
Pages (from-to)198-202
Number of pages5
JournalEnergy Procedia
Volume33
DOIs
StatePublished - 1 Jan 2013
Externally publishedYes
Event2012 PV Asia Pacific Conference, PVAP 2012 - Singapore, Singapore
Duration: 23 Oct 201225 Oct 2012

Keywords

  • CZTS thin films
  • Kesterite
  • Solar cell
  • Spin coating

ASJC Scopus subject areas

  • Energy (all)

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