Details

Autor(en) / Beteiligte

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

Titel

Chemical synthesis and photoelectrochemical study of CdS/rGO nanocomposite films

Ist Teil von

• 한국세라믹학회지, 2023, 60(2), 405, pp.238-251

Ort / Verlag

Singapore: Springer Nature Singapore

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 + Na 2 S + 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