Influence of Cu substitution on structural, morphological and optical properties of Cr/ZnO nanopowders

Department of Nanoscience and Technology, K S Rangasamy College of Technology, Tiruchengode – 637 215, Tamil Nadu, India; M. Santhosh; S. Satheeskumar; Department of Nanoscience and Technology, K S Rangasamy College of Technology, Tiruchengode – 637 215, Tamil Nadu, India; C. Shanthi; Department of Physics, Sona College of Technology, Salem – 636 005, Tamilnadu, India; B. V. Bhuvaneswari; Department of Physics, Alagappa Chettiar Government College of Engineering and Technology, Karaikudi – 630 003, Tamilnadu, India.

doi:10.15251/jor.2022.182.113

journal article·2022-04-12Open access

Influence of Cu substitution on structural, morphological and optical properties of Cr/ZnO nanopowders

Department of Nanoscience and Technology, K S Rangasamy College of Technology, Tiruchengode – 637 215, Tamil Nadu, India, M. Santhosh, S. Satheeskumar, Department of Nanoscience and Technology, K S Rangasamy College of Technology, Tiruchengode – 637 215, Tamil Nadu, India, C. Shanthi, Department of Physics, Sona College of Technology, Salem – 636 005, Tamilnadu, India, B. V. Bhuvaneswari, Department of Physics, Alagappa Chettiar Government College of Engineering and Technology, Karaikudi – 630 003, Tamilnadu, India.

Journal of Ovonic Research· Volume 18· Issue 2

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Abstract

Chromium doped Zinc oxide (Zn0.96Cr0.04O), Chromium and Copper co-doped ZnO nanoparticles (Zn0.96Cr0.04Cu0.02O & Zn0.96Cr0.04Cu0.04O) successfully synthesized by chemical precipitation method at 5000C. The crystalline structure, surface morphology and optical properties of the prepared Cr/ZnO and Cr/Cu/ZnO nanoparticles were examined as a function of doping substance and the prepared samples were characterized using XRD, SEM, EDS and UV-Vis spectroscopy analysis. The synthesized nanoparticles show hexagonal wurtzite structure, and the phase segregation takes place for Cu doping. Optical studies revealed that Cr doping increases the energy band gap while Cu incorporation results in decrease of the band gap.

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Research context

Nanomaterials

OpenAlex topics: ZnO doping and properties · Copper-based nanomaterials and applications · Gas Sensing Nanomaterials and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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