Saha A, Moya A, Kahnt A, Iglesias D, Marchesan S, Wannemacher R, Prato M, Vilatela JJ, Guldi DM (2017)
Publication Type: Journal article
Publication year: 2017
Book Volume: 9
Pages Range: 7911-7921
Journal Issue: 23
DOI: 10.1039/c7nr00759k
A new insight into photoinduced charge transfer processes across carbon nanotube@TiO2 interfaces has been gained based on experimental details from transient absorption spectroscopy. We show that photoinduced, interfacial hole transfer to carboxylic acid-functionalized multiwalled carbon nanotubes (oxMWCNTs) from TiO2 results in hole-doped oxMWCNTs and reduced TiO2. The latter is inferred from femto- and nanosecond transient absorption spectroscopy performed with oxMWCNT@TiO2 dispersions and complemented with investigations using methyl viologen and N,N,N',N'-tetramethyl-p-phenylenediamine as an electron scavenger and a hole scavenger, respectively. The results of ultraviolet photoemission spectroscopy (UPS) of the compounds corroborate the findings, highlighting the strong coupling between oxMWCNTs and TiO2 in these hybrids.
APA:
Saha, A., Moya, A., Kahnt, A., Iglesias, D., Marchesan, S., Wannemacher, R.,... Guldi, D.M. (2017). Interfacial charge transfer in functionalized multi-walled carbon nanotube@TiO2 nanofibres. Nanoscale, 9(23), 7911-7921. https://doi.org/10.1039/c7nr00759k
MLA:
Saha, Avishek, et al. "Interfacial charge transfer in functionalized multi-walled carbon nanotube@TiO2 nanofibres." Nanoscale 9.23 (2017): 7911-7921.
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