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Applied Physics A

, 124:248 | Cite as

Hydrothermal synthesis of nanostructured β-LaS2 thin films

  • Trupti T. Ghogare
  • Rahul B. Pujari
  • Abhishek C. Lokhande
  • Chandrakant D. Lokhande
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Abstract

Nanostructured lanthanum sulfide (β-LaS2) thin films are prepared by hydrothermal method. The X-ray diffraction analysis shows formation of orthorhombic crystal structure. The films have a direct band gap of 3.72 eV, useful for opto-electronic devices. Field emission scanning electron microscopy (FE-SEM) images of β-LaS2 films reveal 3D growth of nano-petals-like porous surface morphology. The synthesized films show hydrophilic nature with a contact angle of 46.9°. The β-LaS2 films exhibit supercapacitive electrochemical properties in 1 M of Na2SO4 electrolyte with a capacitance value of 121.42 Fg−1 at 5 mVs−1 scan rate. The cyclic voltammetry and galvanostatic charge–discharge analyses show that β-LaS2 is a potential candidate for anode material with a potential window of − 1.15 to 0 V in supercapacitor application.

Notes

Acknowledgements

Authors are thankful to Department of Science and Technology-Science and Engineering Research Board (DST-SERB), New Delhi India for their financial support through research Project No. SERB/F/7448/2016-17 dated 13 January, 2017.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Trupti T. Ghogare
    • 1
  • Rahul B. Pujari
    • 1
  • Abhishek C. Lokhande
    • 2
  • Chandrakant D. Lokhande
    • 1
  1. 1.Centre for Interdisciplinary ResearchD.Y. Patil UniversityKolhapurIndia
  2. 2.Department of Materials Science and EngineeringChonnam National UniversityGwangjuSouth Korea

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