A new approach to thin-film SnS PV using MOCVD

Andrew J. Clayton*, Stuart J.C. Irvine, Cecile M.E. Charbonneau, Peter Siderfin, Vincent Barrioz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

SnS thin films were deposited by an inline metal organic chemical vapour deposition process using tetramethyltin and diethyldisulfide as precursors. A N2/H2 carrier was used with pre-mixing of the precursors before overhead injection into the deposition chamber. NSG AB soda lime glass was used as the substrate with area of 50 × 50 mm2. The resulting SnS films had calculated band gaps between 1.3 and 1.5 eV. Scanning electron microscopy showed relatively large grains ranging from 0.5 to 1 μm across for a SnS film sample deposited at 556–558 °C. X-ray diffraction confirmed the films to be SnS, but with small concentrations of impure phases such as Sn2S3. Post-growth annealing treatment in a N2atmosphere at 435 °C using SnCl2/MeOH solution at different molar concentrations only showed changes to the film at 0.05 M. The 0.05 M SnCl2/MeOH treatment was aggressive with blistering and etching occurring.

Original languageEnglish
Pages (from-to)477-481
Number of pages5
JournalEnergy Materials: Materials Science and Engineering for Energy Systems
Volume10
Issue number4
DOIs
Publication statusPublished - 10 Nov 2015

Keywords

  • MOCVD
  • Photovoltaics
  • Thin-film SnS

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