Comparison of annealing temperature on the luminescent spectra of ZnO rods

Authors

Alexandra Santos National Institute of Physics, University of the Philippines Diliman
Ray Vargas National Institute of Physics, University of the Philippines Diliman
Roland Sarmago National Institute of Physics, University of the Philippines Diliman
Kohei Yamanoi Institute of Laser Engineering, Osaka University
Marilou Cadatal-Raduban Institute of Laser Engineering, Osaka University
Toshihiko Shimuzu Institute of Laser Engineering, Osaka University
Nobuhiko Sarukura Institute of Laser Engineering, Osaka University

Abstract

The photolumiscence (PL) spectra of ZnO nanorods produced through chemical synthesis method was investigated under the influence of annealing. Annealing temperatures of 5000C and 8000C were considered, and the PL spectra was obtained in the electromagnetic spectrum range of 320 – 620 nm. It was observed that there was a marginal shift of PL peaks when the annealing temperature were increased, and that a broad new peak emerged at 520 nm at the 8000C annealing temperature. These findings were consistent with previous studies showing that a redistribution of defects and incomplete Zn interestitial migration are factors that affect the characteristics of the ZnO nanorods PL spectra. Furthermore, O vacancies might plays a role in the observed PL peaks in the visible region, and in the observed broadened PL spectra after annealing.

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Issue

2012: Proceedings of the 30th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2012-PB-14

Section

Poster Session PB

Published

2012-10-22

How to Cite

[1]

A Santos, R Vargas, R Sarmago, K Yamanoi, M Cadatal-Raduban, T Shimuzu, and N Sarukura, Comparison of annealing temperature on the luminescent spectra of ZnO rods, Proceedings of the Samahang Pisika ng Pilipinas 30, SPP2012-PB-14 (2012). URL: https://proceedings.spp-online.org/article/view/SPP2012-PB-14.