Face-selective tungstate ions drive zinc oxide nanowire growth direction and dopant incorporation

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

13 Scopus Citations
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Author(s)

  • Jiangyang Liu
  • Kazuki Nagashima
  • Hiroki Yamashita
  • Wataru Mizukami
  • Jun Uzuhashi
  • Takuro Hosomi
  • Masaki Kanai
  • Xixi Zhao
  • Yoshinori Miura
  • Guozhu Zhang
  • Tsunaki Takahashi
  • Masaru Suzuki
  • Daiki Sakai
  • Benjarong Samransuksamer
  • Yong He
  • Tadakatsu Ohkubo
  • Takao Yasui
  • Yuriko Aoki
  • Yoshinobu Baba
  • Takeshi Yanagida

Detail(s)

Original languageEnglish
Article number58
Journal / PublicationCommunications Materials
Volume1
Online published13 Aug 2020
Publication statusPublished - 2020

Link(s)

Abstract

Tailoring the elemental doping of inorganic nanowires remains an important challenge due to complex dopant incorporation pathways. Here we report that the face-selectivity of tungstate ions controls growth direction and dopant incorporation of hydrothermal zinc oxide nanowires. The introduction of tungstate ions on nanowire surface during synthesis unexpectedly enhances nucleation at sidewall {101‾0} planes, while dopant incorporation occurs only on (0001) planes. This conflicting face-selective behavior leads to inhomogeneous dopant distribution. Density functional theory calculations reveal that the face-selective behavior can be interpreted in terms of the effect of coordination structure of the tungstate ions on each zinc oxide crystal plane. In addition, we demonstrate a rational strategy to control the morphology and the elemental doping of tungsten-doped zinc oxide nanowires. Controlling the growth processes of nanowires is vital for tailoring their properties. Here, the presence of tungstate ions on specific surface planes of zinc oxide nanowires causes nanowire growth and chemical doping along specific crystal planes.

Research Area(s)

  • DOPED ZNO, NANORODS, NUCLEATION, FILMS

Citation Format(s)

Face-selective tungstate ions drive zinc oxide nanowire growth direction and dopant incorporation. / Liu, Jiangyang; Nagashima, Kazuki; Yamashita, Hiroki et al.
In: Communications Materials, Vol. 1, 58, 2020.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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