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

Authors

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