SpringerOpen Newsletter

Receive periodic news and updates relating to SpringerOpen.

Open Access Nano Express

Indium-doped ZnO nanowires with infrequent growth orientation, rough surfaces and low-density surface traps

Hongfeng Duan, Haiping He*, Luwei Sun, Shiyan Song and Zhizhen Ye*

Author Affiliations

Department of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou 310027, People's Republic of China

For all author emails, please log on.

Nanoscale Research Letters 2013, 8:493  doi:10.1186/1556-276X-8-493

Published: 21 November 2013


Indium-doped ZnO nanowires have been prepared by vapor transport deposition. With increasing In content, the growth orientation of the nanowires switches from [10<a onClick="popup('http://www.nanoscalereslett.com/content/8/1/493/mathml/M2','MathML',630,470);return false;" target="_blank" href="http://www.nanoscalereslett.com/content/8/1/493/mathml/M2">View MathML</a>0] to infrequent [02<a onClick="popup('http://www.nanoscalereslett.com/content/8/1/493/mathml/M3','MathML',630,470);return false;" target="_blank" href="http://www.nanoscalereslett.com/content/8/1/493/mathml/M3">View MathML</a>3] and the surface becomes rough. No surface-related exciton emission is observed in these nanowires. The results indicate that large surface-to-volume ratio, high free electron concentration, and low density of surface traps can be achieved simultaneously in ZnO nanowires via In doping. These unique properties make In-doped ZnO nanowire a potential material for photocatalysis application, which is demonstrated by the enhanced photocatalytic degradation of Rhodamine B.

In-doped ZnO nanowires; Infrequent [02<a onClick="popup('http://www.nanoscalereslett.com/content/8/1/493/mathml/M1','MathML',630,470);return false;" target="_blank" href="http://www.nanoscalereslett.com/content/8/1/493/mathml/M1">View MathML</a>3] growth orientation; Large surface-to-volume ratio; Low density of surface traps