Photoluminescence studies of silver-doped and magnesium-doped zinc oxide thin films on silicon prepared by intermittent spray pyrolysis

Authors

Jefferson M. Abrenica ⋅ PH National Institute of Physics, University of the Philippines Diliman
Raymund C. Veloz ⋅ PH National Institute of Physics, University of the Philippines Diliman
Mylenne Manrique ⋅ PH National Institute of Physics, University of the Philippines Diliman
Heinritz Majella S. Miguel ⋅ PH National Institute of Physics, University of the Philippines Diliman
Precy Mae C. Calaque ⋅ PH National Institute of Physics, University of the Philippines Diliman
Ma. Herminia M. Balgos ⋅ PH National Institute of Physics, University of the Philippines Diliman
Armando S. Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman
Melvin John F. Empizo ⋅ PH National Institute of Physics, University of the Philippines Diliman
Kohei Yamanoi ⋅ JP Institute of Laser Engineering, Osaka University
Toshihiko Shimizu ⋅ JP Institute of Laser Engineering, Osaka University
Nobuhiko Sarukura ⋅ JP Institute of Laser Engineering, Osaka University

Abstract

Silver-doped (Ag) and magnesium-doped (Mg) zinc oxide (ZnO) thin films were fabricated on silicon using intermittent spray pyrolysis. Undoped ZnO thin film was also fabricated as a reference. The scanning electron microscope (SEM) images of the ZnO thin films revealed a very rough surface morphology. The x-ray diffraction (XRD) profile showed that the thin films have a hexagonal wurtzite crystal structure. The UV-VIS spectra showed that the ZnO thin films have high transparency in the visible region. Wide-scan photoluminescence (PL) spectra of all the ZnO thin films indicate UV and visible emissions at around 380-400 nm and 510-530 nm, respectively. An increase in green emission and decrease in bandgap for Ag-doped ZnO thin film were observed, making Ag a viable dopant to extend the operation of future ZnO-based optoelectronic devices to the visible region.

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Issue

2014: Proceedings of the 32nd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2014-PB-13

Section

Poster Session PB

Published

2014-10-17

How to Cite

[1]

JM Abrenica, RC Veloz, M Manrique, HMS Miguel, PMC Calaque, MHM Balgos, AS Somintac, MJF Empizo, K Yamanoi, T Shimizu, and N Sarukura, Photoluminescence studies of silver-doped and magnesium-doped zinc oxide thin films on silicon prepared by intermittent spray pyrolysis, Proceedings of the Samahang Pisika ng Pilipinas 32, SPP2014-PB-13 (2014). URL: https://proceedings.spp-online.org/article/view/1885.