Chemically deposited Bi2S3:PbS solid solution thin film as supercapacitive electrode

Bidhan Pandit; Gagan Kumar Sharma; Babasaheb R Sankapal

doi:10.1016/j.jcis.2017.06.092

Chemically deposited Bi₂S₃:PbS solid solution thin film as supercapacitive electrode

J Colloid Interface Sci. 2017 Nov 1:505:1011-1017. doi: 10.1016/j.jcis.2017.06.092. Epub 2017 Jun 28.

Authors

Bidhan Pandit¹, Gagan Kumar Sharma¹, Babasaheb R Sankapal²

Affiliations

¹ Nano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440010, Maharashtra, India.
² Nano Materials and Device Laboratory, Department of Physics, Visvesvaraya National Institute of Technology, South Ambazari Road, Nagpur 440010, Maharashtra, India. Electronic address: brsankapal@phy.vnit.ac.in.

PMID: 28693102
DOI: 10.1016/j.jcis.2017.06.092

Abstract

Low-cost, easily synthesized, and high energy/power density embedded stable supercapacitive electrodes are the demands for today's renewable and green energy dependent generation. In search of that, Bi₂S₃:PbS solid solution in thin film form has been synthesized by modest successive ionic layer adsorption and reaction (SILAR) method and characterized by XRD, FESEM, and HRTEM. Formation of solid solution in the form of nanoparticles gilded thin film exposes sufficient electroactive cavities for electroactive ions to incorporate. The composite exhibited excellent specific capacitance of 402.4F/g at current density of 1mA/cm² with modest charge-discharge cycles. In terms of energy storage, it exhibited maximum specific power of 20.1Wh/kg with accepting specific power of 1.2kW/kg. The combination of two nanoparticles in nanocomposites thin film supplies new tactic for energy storage applications.

Keywords: Bi(2)S(3):PbS thin film; Energy storage; SILAR; Supercapacitor.