Synthesis and optical activity of KI-added ZnO microrods grown via hydrothermal method

Authors

  • Karen Nicole E. Mamucud National Institute of Physics, University of the Philippines Diliman
  • Kloudene A. Salazar National Institute of Physics, University of the Philippines Diliman
  • Verdad C. Agulto Institute of Laser Engineering, Osaka University
  • Melvin John F. Empizo Institute of Laser Engineering, Osaka University
  • Keito Shinohara Institute of Laser Engineering, Osaka University
  • Kohei Yamanoi Institute of Laser Engineering, Osaka University
  • Toshihiko Shimizu Institute of Laser Engineering, Osaka University
  • Nobuhiko Sarukura Institute of Laser Engineering, Osaka University
  • Roland V. Sarmago National Institute of Physics, University of the Philippines Diliman

Abstract

The effect of potassium iodide (KI) addition on the morphological, structural, and optical properties of zinc oxide (ZnO) was investigated. Modifications on the morphology of ZnO was observed as rods started to deteriorate as the concentration of KI was increased. No impurity peaks and phase shifts that correspond to a change in the crystal structure of ZnO was observed. The photoluminescence spectra of ZnO showed a UV and visible emission. For samples with KI, an intense visible emission, compared with that of the as-prepared ZnO, was observed which can be attributed to the introduction of defect states and impurities in the ZnO lattice. Thus, studying the effect of KI on the properties of ZnO, especially on the optical part, can help us understand specific defect emissions for us to broaden our knowledge in tuning the optical emissions of ZnO, which is still a controversial topic to discuss with.

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Published

2020-10-19

Issue

2020: Proceedings of the 38th Samahang Pisika ng Pilipinas Physics Conference

Section

Condensed Matter and Materials Science (Short Presentations)

License

By submitting their manuscript to the Samahang Pisika ng Pilipinas (SPP) for consideration, the Authors warrant that their work is original, does not infringe on existing copyrights, and is not under active consideration for publication elsewhere.
Upon acceptance of their manuscript, the Authors further agree to grant SPP the non-exclusive, worldwide, and royalty-free rights to record, edit, copy, reproduce, publish, distribute, and use all or part of the manuscript for any purpose, in any media now existing or developed in the future, either individually or as part of a collection.
All other associated economic and moral rights as granted by the Intellectual Property Code of the Philippines are maintained by the Authors.

How to Cite

[1]
“Synthesis and optical activity of KI-added ZnO microrods grown via hydrothermal method”, Proc. SPP, vol. 38, no. 1, pp. SPP–2020, Oct. 2020, Accessed: Mar. 28, 2026. [Online]. Available: https://proceedings.spp-online.org/article/view/SPP-2020-5G-02