Axial growth of Zn2GeO4/ZnO nanowire heterojunction using chemical vapor deposition

Baobao Cao, Jiajun Chen, Rong Huang, Yumi H. Ikuhara, Tsukasa Hirayama, Weilie Zhou*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The axial Zn2GeO4/ZnO nanowire heterojunction was successfully synthesized via chemical vapor deposition (CVD) approach. The transmission electron microscopy (TEM) study revealed that the growth follows the vaporliquidsolid (VLS) mechanism with an orientation relationship of (3 0 0)Zn2GeO4//(-1 1 0)ZnO and (0 0 3)Zn2GeO4//(1 1 0)ZnO, in which a small lattice mismatch between Zn 2GeO4 and ZnO was observed. The ZnO segment grows out axially along Zn2GeO4 ternary nanowire and its length can be tuned from tens of nanometers to over 10 μm by adjusting the ZnO source supply. This ternary/binary nanowire heterojunction shows a diode effect via nano-manipulators in-situ measurement under field emission scanning electron microsocpy (FESEM).

Original languageEnglish
Pages (from-to)46-50
Number of pages5
JournalJournal of Crystal Growth
Volume316
Issue number1
DOIs
StatePublished - 1 Feb 2011
Externally publishedYes

Keywords

  • A1. Nanostructures
  • A3. Chemical vapor deposition processes
  • B1. Oxides
  • B2. Semiconducting materials
  • B3. Heterojunction semiconductor devices

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