ZnO–Sn@Graphene nanopowders: Integrative impact of tin and graphene on the microstructure, surface morphology, and optical properties

An insightful study intended to comprehend the integrative impact of tin and graphene on the physical features of ZnO–Sn@Graphene nanopowders communicated herein. A facile in situ wet chemical approach was utilized to synthesize ZnO–Sn@Graphene. Their microstructure, morphological, and optical prope...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2022-03, Vol.628, p.413621, Article 413621
Main Authors: Chidhambaram, N., Kumari, S. Senthil, Nirmala, W., Gobalakrishnan, S., Arun, T., Udayabhaskar, R., Morel, Mauricio J.
Format: Article
Language:English
Subjects:
Chemical synthesis
Crystallites
Current carriers
Graphene
Microstructure
Morphology
Nanoparticles
Optical properties
Photoluminescence
Photoluminescence quenching
Physical chemistry
Polycrystalline
Sheets
Steepness parameter
Tin
Urbach tail
Zinc oxide
ZnO
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Summary:An insightful study intended to comprehend the integrative impact of tin and graphene on the physical features of ZnO–Sn@Graphene nanopowders communicated herein. A facile in situ wet chemical approach was utilized to synthesize ZnO–Sn@Graphene. Their microstructure, morphological, and optical properties were explored by employing analytical techniques such as x-ray diffraction, scanning and tunneling electron microscopy, UV–Vis diffused reflectance, and photoluminescence spectroscopy. The influence of tin and graphene inclusion on the ZnO–Sn@Graphene was compared with the counterparts ZnO–Sn and ZnO. The ZnO–Sn@Graphene nanopowders revealed the lowest crystallite size value of 28 nm indicating the in situ synthesis strategy restricts the growth of nanoparticles on the graphene sheets. Morphological investigations depicted the graphene sheets keeping the semiconductor nanoparticles dispersed form. The amalgamation of ZnO–Sn with graphene leads to a significant reduction in the optical bandgap value of 3.20 eV. The ZnO–Sn@Graphene nanopowders disclosed an efficient photogenerated charge carriers separation and photoluminescence quenching. •ZnO–Sn@Graphene nanopowders synthesized using an in situ wet chemical method.•Tin and graphene inclusion causes a reduction in crystallite size and lattice strain.•TEM studies depict the good interfacial contact between ZnO–Sn and graphene sheets.•Bandgap and Urbach energy values altered extensively upon tin and graphene addition.•ZnO–Sn@Graphene nanopowders reveal efficient photoluminescence quenching.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2021.413621