Issue 25, 2010
From the journal:

Journal of Materials Chemistry

Direct fabrication of photoconductive patterns on LBL assembled graphene oxide/PDDA/titania hybrid films by photothermal and photocatalytic reduction†

Hong-Bin Yao,a   Li-Heng Wu,a   Chun-Hua Cui,a   Hai-Yu Fanga  and  Shu-Hong Yu*a  

* Corresponding authors

a Division of Nanomaterials and Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China, Hefei, P. R. China
E-mail: shyu@ustc.edu.cn
Fax: +0086 551 3603040

Abstract

A photo-thermal/catalytic reduction lithography (PRL) approach for the fabrication of photoconductive patterns by 300 W Xe lamp illumination of the (PDDA/GO/PDDA/TiO)20 hybrid films formed through layer by layer (LBL) assembly technique has been reported. High quality (PDDA/GO/PDDA/TiO)20 hybrid films were fabricated on the glass substrate through alternative LBL self-assembly with graphene oxide (GO), titania (TiO) nanosheets, and poly(diallyldimethylammonium) (PDDA). Then, the photoconductive pattern was fabricated by illuminating the hybrid film equipped with a pre-designed aluminium foil as the shadow mask. The “on-off” photoconductive response of the fabricated pattern was directly tested due to the photo-electro conversion role of TiO nanosheets and electronic transportation of reduced GO (RGO) nanosheets, which shows a high photocurrent generation and good reversibility.

Graphical abstract: Direct fabrication of photoconductive patterns on LBL assembled graphene oxide/PDDA/titania hybrid films by photothermal and photocatalytic reduction

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Article information

DOI
https://doi.org/10.1039/C0JM00094A
Article type
Paper
Submitted
20 Jan 2010
Accepted
09 Mar 2010
First published
30 Apr 2010

J. Mater. Chem., 2010,20, 5190-5195

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Direct fabrication of photoconductive patterns on LBL assembled graphene oxide/PDDA/titania hybrid films by photothermal and photocatalytic reduction

H. Yao, L. Wu, C. Cui, H. Fang and S. Yu, J. Mater. Chem., 2010, 20, 5190 DOI: 10.1039/C0JM00094A

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