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Influence of substrate temperature on the physical properties of SnS2 thin films prepared using nebulized spray pyrolysis technique

  • N. Anitha
  • M. Anitha
  • J. Raj Mohamed
  • S. Valanarasu
  • L. Amalraj
Article

Abstract

Influence of substrate temperature on the physical properties of Tin disulfide (SnS2) thin films is investigated. X-ray diffraction studies revealed that the SnS2 thin films are preferentially oriented as (001) plane. SEM analysis showed that SnS2 thin films had platelet-like grains. EDAX analysis clearly confirms the presence of expected elements of tin and sulfur in appropriate proportions. Multiple interference effects were predominant in all these thin films in wavelength region of 500–1100 nm. The direct optical band gap of tin disulfide thin films had decreased from 3.26 to 2.7 eV with the increase in substrate temperature. Photoluminescence studies expose that the intensity of NBE emission peaks differs according to the substrate temperature. A minimum resistivity value of 2.19 × 101 Ω cm was obtained for the film grown at Ts = 250 °C. Hall Effect measurement exhibited that all the SnS2 samples had n-type conductivity. Raman spectra exposed that SnS2 films had a broad peak at 314 cm− 1.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • N. Anitha
    • 1
  • M. Anitha
    • 1
  • J. Raj Mohamed
    • 1
    • 2
  • S. Valanarasu
    • 3
  • L. Amalraj
    • 1
  1. 1.Research Department of PhysicsV.H.N.S.N College (Autonomous)VirudhunagarIndia
  2. 2.Research Department of PhysicsH.H.The Raja’s CollegePudukkottaiIndia
  3. 3.PG and Research Department of PhysicsArul Anandar CollegeMaduraiIndia

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