Structural and optical properties of undoped and Cu-doped ZnO microrods fabricated by hydrothermal method

Authors

Hernanie T. Salazar, Jr. ⋅ PH National Institute of Physics, University of the Philippines Diliman
Arven I. Cafe ⋅ PH National Institute of Physics, University of the Philippines Diliman
Arnel A. Salvador ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Cu-doped ZnO micro structures were prepared by aqueous chemical growth (ACG) method. X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) were used to investigate its structural and morphological properties, respectively. XRD measurements showed that ZnO microrods maintained the typical hexagonal wurtzite structure as shown by the presence of three prominent peaks (100), (002) and (101). Moderate Cu-doping enhanced (002) preferential growth orientation of ZnO. C-lattice parameter increased due to possible substitution of Cu to Zn ions. SEM images also showed the formation of hexagonal rod-like with some presence of pod-like structures. Raman spectroscopy was also used to determine the change in vibrational mode. Raman spectra showed the presence of two non-polar modes E₂ (high) and E₂(low). These modes are distinct characteristics for ZnO hexagonal wurtzite structure. Frequency shift and broadening was also seen in the E₂ (high) mode.

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Issue

2016: Proceedings of the 34th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2016-PA-11

Section

Poster Session PA

Published

2016-08-18

How to Cite

[1]

HT Salazar, AI Cafe, AA Salvador, and RV Sarmago, Structural and optical properties of undoped and Cu-doped ZnO microrods fabricated by hydrothermal method, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-PA-11 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-PA-11.