Synthesis, characterization and investigation of ZnO @ Cu/CuO core-multishell nanoparticles for solar energy harvesting

Deepti R. Kulkarni, Narasimha H. Ayachit, Suresh D. Kulkarni, Raviraj M. Kulkarni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

n-ZnO core @ Cu/p-CuO multishell nanoparticles were synthesized by a two step wet chemical process. In the first step, wurtzite ZnO nanoparticles were prepared by simple precipitation technique using ZnCl2 and NaOH precursors. The prepared nanoparticles were further powdered by ball milling technique. The prepared ZnO nanoparticles were coated with copper shell by electroless plating technique. The CuO film was later formed on the copper shell by air oxidation. The ZnO@Cu/CuO core-multishell nanoparticles were characterized using elemental analysis, X-ray diffraction and electron microscopic studies. BET nitrogen gas adsorption technique was employed to determine the specific surface area of ZnO@Cu/p-CuO core-multishell nanoparticles. Diffused reflectance spectroscopy (DRS) was used to measure the band gap of core-multishell nanoparticles. Tauc plot was use to determine the optical band gap (Eg) of the nanoparticles. The DRS analysis suggests the Core-multishell nanoparticles have wide band gap from near ultraviolet to visible and better light absorption strength. The n-ZnO @ Cu/p-CuO core-multishell nanoparticles may find application in solar energy harvesting.

Original languageEnglish
Title of host publicationEmerging Technologies
Subtitle of host publicationMicro to Nano (ETMN-2017): Proceedings of the 3rd International Conference on Emerging Technologies: Micro to Nano
PublisherAmerican Institute of Physics Inc.
Volume1989
ISBN (Electronic)9780735417052
DOIs
Publication statusPublished - 23-07-2018
Event3rd International Conference on Emerging Technologies: Micro to Nano, ETMN 2017 - Solapur, India
Duration: 06-10-201707-10-2017

Conference

Conference3rd International Conference on Emerging Technologies: Micro to Nano, ETMN 2017
CountryIndia
CitySolapur
Period06-10-1707-10-17

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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