Effect of PVA surface capping on the optical absorption of ZnO nanorods grown via chemical bath deposition

Authors

John Paul Ferrolino ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Aren Renz Centeno ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Jenica Rozette Uy ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Verdad Agulto ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Allan Yago ⋅ PH Materials Science and Engineering Program, University of the Philippines Diliman
Roland Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

ZnO nanorods were grown via chemical bath deposition in a glass cover slip with a seed layer deposited using spray pyrolysis of Zn(CH₃COO)₂·2H₂O solution. After annealing the grown nanorods, the surface was capped using PVA solution which was prepared one day prior. SEM images and FTIR analysis were done to confirm the presence of PVA to the ZnO nanorods which is known to attach at the zinc vacancy defect. Upon confirmation, both the as-grown and PVA-capped ZnO nanorods had their absorbance measured for comparison using UV-Vis spectroscopy. Larger change in the absorbance was found at the wavelength corresponding to the energy of the defects.

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Issue

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

Article ID

SPP-2016-PA-09

Section

Poster Session PA

Published

2016-08-18

How to Cite

[1]

JP Ferrolino, AR Centeno, JR Uy, V Agulto, A Yago, and R Sarmago, Effect of PVA surface capping on the optical absorption of ZnO nanorods grown via chemical bath deposition, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-PA-09 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-PA-09.