Chemical synthesis and photoelectrochemical study of CdS/rGO nanocomposite films

Ranjit P. Nikam; Abhishekh C. Lokhande; Sambhaji D. Khot; Vikas J. Mane; Chandrakant D. Lokhande

doi:10.1007/s43207-022-00258-1

Chemical synthesis and photoelectrochemical study of CdS/rGO nanocomposite films

Ranjit P. Nikam
, Abhishekh C. Lokhande
, Sambhaji D. Khot
, Vikas J. Mane
, Chandrakant D. Lokhande

Mechanical & Nuclear Engineering

D. Y. Patil University, Kolhapur

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

The cadmium sulfide/reduced graphene oxide (CdS/rGO) composite thin films were synthesized on stainless steel (SS) substrates using the successive ionic layer adsorption and reaction (SILAR) method. The physico-chemical properties of CdS/rGO films were studied. The X-ray diffraction (XRD) revealed the growth of nanocrystalline CdS/rGO films with a cubic crystal structure. The field-emission scanning electron microscopy (FE-SEM) images of CdS/rGO-80 composite thin films showed compact spherical nanoparticles and an optical band gap found to be 2.27 eV. The CdS/rGO-80 composite thin film displayed hydrophilic nature with a water contact angle of 33°. The photoelectrochemical (PEC) studies of CdS/rGO thin film in dark and under light exhibited n-type of electrical conductivity with an improved photoactivity over bare CdS in 1 M polysulfide (NaOH + Na₂S + S) electrolyte. It is observed that rGO composited CdS thin film enhances the conversion efficiency (η) from 0.09 to 0.31% than bare CdS films. The electrical transport properties were investigated by electrochemical impedance spectroscopy (EIS) study in dark and under illumination conditions and corresponding equivalent circuit of the impedance model is developed. Graphical Abstract: [Figure not available: see fulltext.].

Original language	British English
Pages (from-to)	238-251
Number of pages	14
Journal	Journal of the Korean Ceramic Society
Volume	60
Issue number	2
DOIs	https://doi.org/10.1007/s43207-022-00258-1
State	Published - Mar 2023

Keywords

Cadmium sulfide
Chemical synthesis
Reduced graphene oxide
Successive ionic layer adsorption and reaction
Thin film

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10.1007/s43207-022-00258-1

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@article{e55c66b4f5544d45b3e4b369476d6e5b,

title = "Chemical synthesis and photoelectrochemical study of CdS/rGO nanocomposite films",

abstract = "The cadmium sulfide/reduced graphene oxide (CdS/rGO) composite thin films were synthesized on stainless steel (SS) substrates using the successive ionic layer adsorption and reaction (SILAR) method. The physico-chemical properties of CdS/rGO films were studied. The X-ray diffraction (XRD) revealed the growth of nanocrystalline CdS/rGO films with a cubic crystal structure. The field-emission scanning electron microscopy (FE-SEM) images of CdS/rGO-80 composite thin films showed compact spherical nanoparticles and an optical band gap found to be 2.27 eV. The CdS/rGO-80 composite thin film displayed hydrophilic nature with a water contact angle of 33°. The photoelectrochemical (PEC) studies of CdS/rGO thin film in dark and under light exhibited n-type of electrical conductivity with an improved photoactivity over bare CdS in 1 M polysulfide (NaOH + Na2S + S) electrolyte. It is observed that rGO composited CdS thin film enhances the conversion efficiency (η) from 0.09 to 0.31\% than bare CdS films. The electrical transport properties were investigated by electrochemical impedance spectroscopy (EIS) study in dark and under illumination conditions and corresponding equivalent circuit of the impedance model is developed. Graphical Abstract: [Figure not available: see fulltext.].",

keywords = "Cadmium sulfide, Chemical synthesis, Reduced graphene oxide, Successive ionic layer adsorption and reaction, Thin film",

author = "Nikam, \{Ranjit P.\} and Lokhande, \{Abhishekh C.\} and Khot, \{Sambhaji D.\} and Mane, \{Vikas J.\} and Lokhande, \{Chandrakant D.\}",

note = "Publisher Copyright: {\textcopyright} 2022, The Korean Ceramic Society.",

year = "2023",

month = mar,

doi = "10.1007/s43207-022-00258-1",

language = "British English",

volume = "60",

pages = "238--251",

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TY - JOUR

T1 - Chemical synthesis and photoelectrochemical study of CdS/rGO nanocomposite films

AU - Nikam, Ranjit P.

AU - Lokhande, Abhishekh C.

AU - Khot, Sambhaji D.

AU - Mane, Vikas J.

AU - Lokhande, Chandrakant D.

PY - 2023/3

Y1 - 2023/3

N2 - The cadmium sulfide/reduced graphene oxide (CdS/rGO) composite thin films were synthesized on stainless steel (SS) substrates using the successive ionic layer adsorption and reaction (SILAR) method. The physico-chemical properties of CdS/rGO films were studied. The X-ray diffraction (XRD) revealed the growth of nanocrystalline CdS/rGO films with a cubic crystal structure. The field-emission scanning electron microscopy (FE-SEM) images of CdS/rGO-80 composite thin films showed compact spherical nanoparticles and an optical band gap found to be 2.27 eV. The CdS/rGO-80 composite thin film displayed hydrophilic nature with a water contact angle of 33°. The photoelectrochemical (PEC) studies of CdS/rGO thin film in dark and under light exhibited n-type of electrical conductivity with an improved photoactivity over bare CdS in 1 M polysulfide (NaOH + Na2S + S) electrolyte. It is observed that rGO composited CdS thin film enhances the conversion efficiency (η) from 0.09 to 0.31% than bare CdS films. The electrical transport properties were investigated by electrochemical impedance spectroscopy (EIS) study in dark and under illumination conditions and corresponding equivalent circuit of the impedance model is developed. Graphical Abstract: [Figure not available: see fulltext.].

AB - The cadmium sulfide/reduced graphene oxide (CdS/rGO) composite thin films were synthesized on stainless steel (SS) substrates using the successive ionic layer adsorption and reaction (SILAR) method. The physico-chemical properties of CdS/rGO films were studied. The X-ray diffraction (XRD) revealed the growth of nanocrystalline CdS/rGO films with a cubic crystal structure. The field-emission scanning electron microscopy (FE-SEM) images of CdS/rGO-80 composite thin films showed compact spherical nanoparticles and an optical band gap found to be 2.27 eV. The CdS/rGO-80 composite thin film displayed hydrophilic nature with a water contact angle of 33°. The photoelectrochemical (PEC) studies of CdS/rGO thin film in dark and under light exhibited n-type of electrical conductivity with an improved photoactivity over bare CdS in 1 M polysulfide (NaOH + Na2S + S) electrolyte. It is observed that rGO composited CdS thin film enhances the conversion efficiency (η) from 0.09 to 0.31% than bare CdS films. The electrical transport properties were investigated by electrochemical impedance spectroscopy (EIS) study in dark and under illumination conditions and corresponding equivalent circuit of the impedance model is developed. Graphical Abstract: [Figure not available: see fulltext.].

KW - Cadmium sulfide

KW - Chemical synthesis

KW - Reduced graphene oxide

KW - Successive ionic layer adsorption and reaction

KW - Thin film

UR - https://www.scopus.com/pages/publications/85141976688

U2 - 10.1007/s43207-022-00258-1

DO - 10.1007/s43207-022-00258-1

M3 - Article

AN - SCOPUS:85141976688

SN - 1229-7801

VL - 60

SP - 238

EP - 251

JO - Journal of the Korean Ceramic Society

JF - Journal of the Korean Ceramic Society

IS - 2

ER -

Chemical synthesis and photoelectrochemical study of CdS/rGO nanocomposite films

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