Synthesis and characterization of a micro scale zinc oxide-PVA composite by ultrasound irradiation and the effect of composite on the crystal growth of zinc oxide

R. Vijaya Kumar, R. Elgamiel, Yu Koltypin, Jochen Norwig, A. Gedanken

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40 Scopus citations

Abstract

Micro scale zinc oxide-polyvinyl alcohol (ZnO-PVA) composite has been synthesized by ultrasound irradiation. The properties of the as-prepared ZnO-PVA composite material are characterized by X-ray diffraction (XRD), thermo gravimetric analysis (TGA), transmission electron microscopy (TEM), and diffuse reflection spectroscopy (DRS). A band gap of 3.25 eV is estimated from DRS measurements. The controlled crystal growth of zinc oxide has been studied by using the as-prepared micro scale ZnO-PVA composite as seeds for the crystal growth of ZnO.

Original languageEnglish
Pages (from-to)409-417
Number of pages9
JournalJournal of Crystal Growth
Volume250
Issue number3-4
DOIs
StatePublished - Apr 2003

Bibliographical note

Funding Information:
R.V.K. thanks the Bar-Ilan Research Authority for his postdoctoral fellowship. Prof. A. Gedanken and Dr. J. Norwig thank the support of the German Ministry of Science (BMBF) for support through the Deutsch-Israelische Projektpartnerschaft (DIP). The authors are grateful to Prof. Z. Malik, Department of Life Science, for extending to us the use of their facilities. We also thank Dr. Shifra Hochberg for editorial assistance.

Keywords

  • A1. Crystal morphology
  • A2. Growth from solutions
  • A2. Seed crystals
  • B1. Nanomaterials
  • B2. Semiconducting materials

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