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Rectifying Behaviour and Photocatalytic Activity in ZnO Nanorods Array/Ag/CuSe Heterostructure

  • Ali RahmatiEmail author
  • Asma Farokhipour
Original Paper
  • 4 Downloads

Abstract

Ag incorporated vertically aligned ZnO nanorods array/CuSe thin film (ZnO NRs/CuSe TF) have been fabricated via a solution route, thermal evaporation and magnetron sputtering process. Ternary ZnO nanorods/Ag/CuSe heterostructure was studied by X-ray diffractometry, field emission-scanning electron microscopy/energy dispersive X ray spectroscopy, current–voltage measurement and a UV–Vis–near IR spectrophotometer. The photocatalytic performance was estimated by the degradation of Rhodamine B solution under UV–Vis light irradiation. The photocatalytic efficiency of the ZnO NRs/Ag/CuSe heterostructure is higher than that of ZnO NRs/Ag and ZnO NRs/CuSe counterparts due to the robust effects of the three functional components coupling. The localized surface plasmon resonance and two Schottky junctions (e.g. Ag/ZnO and Ag/CuSe) motivates photogenerated electron–hole separation and transfer. This work presents an artificial manipulated system to enhance light harvesting, efficient charge separation and transfer, and low recombination rate in solar energy conversion.

Keywords

ZnO nanorods array/Ag/CuSe heterostructure Localized surface plasmon resonance (LSPR) Charge separation Photocatalytic activity 

Notes

Acknowledgements

The corresponding author (Ali Rahmati) would like to acknowledge his wife, Mahla Ghaemi Moghadam for her patience and invaluable help.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Physics, Faculty of ScienceVali-e-Asr University of RafsanjanRafsanjanIran
  2. 2.Nanostructure Laboratory, Faculty of ScienceVali-e-Asr University of RafsanjanRafsanjanIran

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