Issue 41, 2011
From the journal:

Journal of Materials Chemistry

Ultraviolet response and photoelectrochemical properties of a rutile and anatase mixture grown onto single-wall carbon nanotubes at a low temperature using nano-cluster deposition†

Thanh-Tung Duong,a   Do-Jin Kim,a   Chang-Soo Kimc  and  Soon-Gil Yoon*ab  

* Corresponding authors

a School of Nano Science and Technology, Chungnam National University, Daeduk Science Town, Daejeon, Korea
E-mail: sgyoon@cnu.ac.kr

b Graduate of Analytical Science and Technology (GRAST), Chungnam National University, Daeduk Science Town, Daejeon, Korea

c Korea Research Institute of Standards and Science, Daejeon, Korea

Abstract

TiO2/SWCNT (single-wall carbon nanotube) composites were prepared by a low temperature nano-cluster deposition (NCD) of TiO2 onto SWCNTs. The TiO2 films grown onto SWCNTs at a low temperature by NCD consisted of a mixture of rutile and anatase, which was chosen for its favorable photo-response and photoelectrochemical effects. The strong adhesion between the TiO2/SWCNT and the ITO (indium tin oxide)/glass for the working electrode was effectively achieved by applying a few droplets of ethanol onto the TiO2/SWCNT/ITO/glass. The current–voltage curve of the TiO2/SWCNT indicated a rectifying behavior, and the photo response was approximately 60 times higher than that of TiO2 thick films. Regarding the photoelectrochemical activity of the TiO2/SWCNT, composites with an ultra-thin thickness of about 1 μm under UV illumination of a low power of 0.3 mW cm−2, showed a photoconversion efficiency of about 18.0%, which was a high efficiency at a low power density. The mixed rutile and anatase TiO2 deposited onto SWCNTs using NCD at a low temperature effectively enhanced the photoresponse and the photoelectrochemical abilities of the TiO2/SWCNTs.

Graphical abstract: Ultraviolet response and photoelectrochemical properties of a rutile and anatase mixture grown onto single-wall carbon nanotubes at a low temperature using nano-cluster deposition

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Article information

DOI
https://doi.org/10.1039/C1JM11921D
Article type
Paper
Submitted
02 May 2011
Accepted
22 Aug 2011
First published
15 Sep 2011

J. Mater. Chem., 2011,21, 16473-16479

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Ultraviolet response and photoelectrochemical properties of a rutile and anatase mixture grown onto single-wall carbon nanotubes at a low temperature using nano-cluster deposition

T. Duong, D. Kim, C. Kim and S. Yoon, J. Mater. Chem., 2011, 21, 16473 DOI: 10.1039/C1JM11921D

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