Influence of Poly(diallyldimethylammonium chloride) on the morphology, crystalline structure, and photoluminescence of ZnO microrods grown via in-situ hydrothermal route

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

Abstract

ZnO microrods were successfully grown via hydrothermal route using zinc acetate dihydrate and hexamine as precursors at 90oC for 2h. The role of poly(diallyldimethylammonium chloride)(PDDA) as growth modifier has been investigated by studying its influence on the morphology, crystal structure, and photoluminescence of ZnO microrods. Average length and width of the rods were measured with respect to the concentration of the cationic polymer. SEM images and XRD data confirmed that the structure is hexagonal wurtzite with an approximate lattice parameter of a = 3.24 Å and c = 5.20 Å. UV enhancement has also been observed in the sample with 1 μM concentration of PDDA. This study shows that surface enhancement of ZnO can be done by using simple and low-cost hydrothermal route with the aid of a polyelectrolyte.

Published
2019-05-22
How to Cite
[1]
J. M. Inguito, K. Salazar, M. A. Judicpa, R. Lopez, V. Agulto, M. J. Empizo, K. Yamanoi, K. Shinohara, T. Shimizu, N. Sarukura, A. C. Yago, V. A. Samson, and R. Sarmago. Influence of Poly(diallyldimethylammonium chloride) on the morphology, crystalline structure, and photoluminescence of ZnO microrods grown via in-situ hydrothermal route, Proceedings of the Samahang Pisika ng Pilipinas 37, SPP-2019-PA-31 (2019). URL: https://paperview.spp-online.org/proceedings/article/view/SPP-2019-PA-31.