Issue 50, 2022, Issue in Progress

The effects of copper doping on morphology and room-temperature photoluminescence of ZnO nanocolumns

Abstract

In this study, a versatile vapor phase transport method for the synthesis and copper-doping of ZnO nanocolumns is demonstrated. Doping percentage (up to 5%) showed no effect on the wurtzite structural phase of ZnO nanocolumns. However, a decrease in nanocolumn diameter (cross-sectional length of longest side or diagonal) due to doping was observed by scanning electron microscopy. Reduced rate of electron–hole recombination was inferred from a decrease in the intensity of the near-band edge emission peak shown in room-temperature photoluminescence spectra. Expression of structural defects in both doped and undoped nanocolumns suggest p-type conductivity. Observed copper-doping effects show promise for utilizing such structures as electrode components in dye-sensitized solar cells.

Graphical abstract: The effects of copper doping on morphology and room-temperature photoluminescence of ZnO nanocolumns

Article information

Article type
Paper
Submitted
22 Aug 2022
Accepted
03 Nov 2022
First published
15 Nov 2022
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2022,12, 32667-32672

The effects of copper doping on morphology and room-temperature photoluminescence of ZnO nanocolumns

P. Blount, L. Marder, J. Oyegoke and T. Trad, RSC Adv., 2022, 12, 32667 DOI: 10.1039/D2RA05278D

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