Structural and Optical Properties of Copper Indium Oxide Nanocrystalline Powders Prepared by Solid-State Reaction Method

Authors Lakshmi Rajesh Ch , Madhusudhana Rao N

Department of Physics, School of Advanced Sciences, VIT-AP University, 522237 Andhra Pradesh, India

Issue Volume 14, Year 2022, Number 6
Dates Received 21 October 2022; revised manuscript received 21 December 2022; published online 27 December 2022
Citation Lakshmi Rajesh Ch, Madhusudhana Rao N., J. Nano- Electron. Phys. 14 No 6, 06017 (2022)
PACS Number(s) 78.55.Qr, 81.07.Wx
Keywords Copper indium oxide, Solid-state reaction, Nanocrystalline powder, Photoluminescence (17) .

Copper Indium Oxide (CuInO2) nanocrystalline powder samples with different Cu/In ratios were prepared using the conventional solid-state reaction method. The structural, morphological, and optical properties of CuInO2 samples were studied. The delafossite structure of copper indium oxide nanocrystalline samples with (012) preferential orientation is observed. With altering the composition, the particles size of the prepared powder samples changed ranging from 6nm to 94 nm, and the energy band gaps varied from 2.20 eV to 2.37 eV. Photoluminescence intensity at 595 nm and 596 nm in thevisible region enhanced with variation of Cu/In ratios.

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