Formation of a multi-arm branched nanorod of ZnO on the Si surface via a nanoseed-induced polytypic crystal growth using the hydrothermal method

Sin Tee Tan, Akrajas Ali Umar*, Muhammad Yahaya, Muhamad Mat Salleh, Chi Chin Yap, Hong Quan Nguyen, Chang Fu Dee, Edward Yi Chang, Munetaka Oyama

*Corresponding author for this work

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

A branched nanorod of ZnO composed of multiple branches that projects from a single nanorod backbone can be realized by using a hydrothermal approach in the presence of a nanoseed with a special structure, namely multi-faceted orthorhombic Zn2SiO4. Orthorhombic Zn2SiO4 was prepared by annealing the ZnO nanoseed of size ca. 15 nm on a Si substrate at a temperature of 900 °C in air for one hour. A typical branched nanorod was constructed by a hexagonal-and rectangular-shaped nanorod arm. HRTEM analysis on the branched structure indicated that the branches exhibited a different crystal growth direction [002] and [100], reflecting the presence of a polytypic growth process in the formation of the branched nanorod structure. The branched nanorod of ZnO and its feature-rich faceted property appears promising for solar cell, catalytic and sensing applications.

Original languageEnglish
Pages (from-to)803-809
Number of pages7
JournalScience of Advanced Materials
Volume5
Issue number7
DOIs
StatePublished - 7 Aug 2013

Keywords

  • Branched nanorod
  • Multipod branches
  • Orthorhombic ZnSiO nanoseed
  • Polytypism
  • ZnO nanorods

Fingerprint Dive into the research topics of 'Formation of a multi-arm branched nanorod of ZnO on the Si surface via a nanoseed-induced polytypic crystal growth using the hydrothermal method'. Together they form a unique fingerprint.

  • Cite this