Polyvinylpyrrolidone-assisted ZnO growth via hydrothermal method

Authors

Bee Jay Magallanes ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Kloudene A. Salazar ⋅ PH National Institute of Physics, University of the Philippines Diliman
Mia Angela N. Judicpa ⋅ PH Institute of Chemistry, University of the Philippines Diliman
Roma S. Lopez ⋅ PH Institute of Chemistry, University of the Philippines Diliman
Verdad C. Agulto ⋅ JP Institute of Laser Engineering, Osaka University, Japan
Melvin John F. Empizo ⋅ JP Institute of Laser Engineering, Osaka University, Japan
Keito Shinohara ⋅ JP Institute of Laser Engineering, Osaka University, Japan
Kohei Yamanoi ⋅ JP Institute of Laser Engineering, Osaka University, Japan
Toshihiko Shimizu ⋅ JP Institute of Laser Engineering, Osaka University, Japan
Allan Christopher C. Yago ⋅ PH Institute of Chemistry, University of the Philippines Diliman
Vallerie Ann I. Samson ⋅ PH National Institute of Physics, University of the Philippines Diliman
Nobuhiko Sarukura ⋅ JP Institute of Laser Engineering, Osaka University, Japan
Roland V. Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The effect of in-situ addition of polyvinylpyrrolidone (PVP) on the structural and optical properties of ZnO was investigated. PVP-assisted ZnO samples were fabricated using hydrothermal method. SEM images revealed that the ZnO microstructures consist of twinned hexagonal plates that become smoother as PVP concentration is increased. XRD data indicated that the as-prepared samples were indexed to the well-crystallized hexagonal wurtzite structure of ZnO with no secondary phases or shift in the peaks observed. Strong UV emission and weak green-yellow emissions were observed in the PL spectra of the as-prepared samples at room temperature. Results suggest that PVP is an effective structure-directing agent to control the morphological and optical properties of ZnO as reflected from the SEM and PL spectra without significantly changing the crystal structure.

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Issue

2019: Proceedings of the 37th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2019-PA-03

Section

Poster Session PA

Published

2019-05-21

How to Cite

[1]

BJ Magallanes, KA Salazar, MAN Judicpa, RS Lopez, VC Agulto, MJF Empizo, K Shinohara, K Yamanoi, T Shimizu, ACC Yago, VAI Samson, N Sarukura, and RV Sarmago, Polyvinylpyrrolidone-assisted ZnO growth via hydrothermal method, Proceedings of the Samahang Pisika ng Pilipinas 37, SPP-2019-PA-03 (2019). URL: https://proceedings.spp-online.org/article/view/SPP-2019-PA-03.