Spray deposited copper zinc tin sulphide (Cu2ZnSnS4) film as a counter electrode in dye sensitized solar cells

Sanjay Kumar Swami, Neha Chaturvedi, Anuj Kumar, Nikhil Chander, Viresh Dutta, D. Kishore Kumar, A. Ivaturi, S. Senthilarasu, Hari M. Upadhyaya

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

Stoichiometric thin films of Cu2ZnSnS4 (CZTS) were deposited by the spray technique on a FTO coated glass substrate, with post-annealing in a H2S environment to improve the film properties. CZTS films were used as a counter electrode (CE) in Dye-Sensitized Solar Cells (DSCs) with N719 dye and an iodine electrolyte. The DSC of 0.25 cm2 area using a CE of CZTS film annealed in a H2S environment under AM 1.5G illumination (100 mW cm-2) exhibited a short circuit current density (JSC) = 18.63 mA cm-2, an open circuit voltage (VOC) = 0.65 V and a fill factor (FF) = 0.53, resulting in an overall power conversion efficiency (PCE) = 6.4%. While the DSC using as deposited CZTS film as a CE showed the PCE = 3.7% with JSC = 13.38 mA cm-2, VOC = 0.57 V and FF = 0.48. Thus, the spray deposited CZTS films can play an important role as a CE in the large area DSC fabrication.

Original languageEnglish
Pages (from-to)23993-23999
Number of pages7
JournalPhysical Chemistry Chemical Physics
Volume16
Issue number43
Early online date6 Oct 2014
DOIs
Publication statusPublished - 21 Nov 2014

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Spray deposited copper zinc tin sulphide (Cu<sup>2</sup>ZnSnS<sup>4</sup>) film as a counter electrode in dye sensitized solar cells'. Together they form a unique fingerprint.

Cite this