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

Research output: Contribution to journalArticle

14 Citations (Scopus)

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
Publication statusPublished - 2013

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Crystallization
Nanorods
Crystal growth
Solar cells
Annealing
Substrates
Air
Temperature

Keywords

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

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Formation of a multi-arm branched nanorod of ZnO on the Si surface via a nanoseed-induced polytypic crystal growth using the hydrothermal method. / Tan, Sin Tee; Akrajas, Ali Umar; Yahaya, Muhammad; Mat Salleh, Muhamad; Yap, Chi Chin; Nguyen, Hong Quan; Dee, Chang Fu; Chang, Edward Yi; Oyama, Munetaka.

In: Science of Advanced Materials, Vol. 5, No. 7, 2013, p. 803-809.

Research output: Contribution to journalArticle

Tan, Sin Tee ; Akrajas, Ali Umar ; Yahaya, Muhammad ; Mat Salleh, Muhamad ; Yap, Chi Chin ; Nguyen, Hong Quan ; Dee, Chang Fu ; Chang, Edward Yi ; Oyama, Munetaka. / Formation of a multi-arm branched nanorod of ZnO on the Si surface via a nanoseed-induced polytypic crystal growth using the hydrothermal method. In: Science of Advanced Materials. 2013 ; Vol. 5, No. 7. pp. 803-809.
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AU - Mat Salleh, Muhamad

AU - Yap, Chi Chin

AU - Nguyen, Hong Quan

AU - Dee, Chang Fu

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