Please use this identifier to cite or link to this item: https://doi.org/10.1002/adfm.200900891
Title: Multilayer hybrid films consisting of alternating graphene and titania nanosheets with ultrafast electron transfer and photoconversion properties
Authors: Manga, K.K. 
Zhou, Y. 
Yan, Y. 
Loh, K.P. 
Issue Date: 23-Nov-2009
Citation: Manga, K.K., Zhou, Y., Yan, Y., Loh, K.P. (2009-11-23). Multilayer hybrid films consisting of alternating graphene and titania nanosheets with ultrafast electron transfer and photoconversion properties. Advanced Functional Materials 19 (22) : 3638-3643. ScholarBank@NUS Repository. https://doi.org/10.1002/adfm.200900891
Abstract: Alternating graphene (G) and titania (Ti0.91O2) multilayered nanosheets are fabricated using layer-by-layer electrostatic deposition followed by UV irradiation. Successful assemblies of graphene oxide (GO) and titania nanosheets in sequence with polyethylenimine as a linker is confirmed by UV-vis absorption and X-ray diffraction. Photocatalytic reduction of GO into G can be achieved upon UV irradiation. Ultrafast photocatalytic electron transfer between the titania and graphene is demonstrated using femtosecond transient absorption spectroscopy. Efficient exciton dissociation at the interfaces coupled with cross-surface charge percolation allows efficient photocurrent conversion in the multilayered Ti0.91Oz/G films. © 2009 WlLEY-VCH Verlag GmbH & Co. KGaA.
Source Title: Advanced Functional Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/94332
ISSN: 1616301X
DOI: 10.1002/adfm.200900891
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