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Light-induced charge transfer in pyrene/CdSe-SWNT hybrids

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Light-induced charge transfer in pyrene/CdSe-SWNT hybrids

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dc.contributor.author Hu, Liangbing
dc.contributor.author Zhao, Yanli
dc.contributor.author Ryu, Koungmin
dc.contributor.author Zhou, Chongwu
dc.contributor.author Stoddart, J. Fraser
dc.contributor.author Grüner, George
dc.date.accessioned 2011-07-29T01:17:54Z
dc.date.available 2011-07-29T01:17:54Z
dc.date.copyright 2008
dc.date.issued 2011-07-29
dc.identifier.citation Hu, L., Zhao, Y. -L., Ryu, K., Zhou, C., Stoddart, J. F., & Grϋner, G. (2008). Light-induced charge transfer in Pyrene/CdSe-SWNT hybrids. Advanced Materials, 20, 939-946.
dc.identifier.uri http://hdl.handle.net/10220/6945
dc.description.abstract On account of their nano-scale size, large aspect ratio and high conductivity, single-walled carbon nanotubes(SWNTs) have emerged as an attractive choice for conducting composite materials. [1–10] Composites in corporating SWNTs show percolation dominated conductivity with a much lower volume threshold (volumefraction≈10–5), compared to those with nanoparticles.[11–13] Two-thirds of SWNTs a rep-typesemicon-ductors with holes as the charge carriers.Using the hole-blocking nature of SWNTs, conducting polymer shaving SWNTs as dopants are effectively used as the hole buffering [14] and electron transport[15] layers in organic light-emitted diodes(OLEDs). For the active layer of OLEDs and organic photovoltaic(OPV) devices, incorporation of SWNTs enhances the charge separation and facilitates charge transport, hence improving the performance, i.e., the short circuit current, the filling fact or and power conversion efficiency.[16–19] However, since SWNTs are a mixture of metallic and semi-conducting nano tubes with a small bandgap(≈0.6eV), both electrons and holes in the composite matrix prefer[14] to transfer on to and then be quenched on the SWNTs.
dc.format.extent 8 p.
dc.language.iso en
dc.relation.ispartofseries Advanced materials
dc.rights © 2008 Wiley-VCH Verlag.
dc.subject DRNTU::Engineering::Materials::Nanostructured materials.
dc.title Light-induced charge transfer in pyrene/CdSe-SWNT hybrids
dc.type Journal Article
dc.contributor.school School of Physical and Mathematical Sciences
dc.identifier.doi http://dx.doi.org/10.1002/adma.200701125
dc.description.version Accepted version
dc.identifier.rims 159732

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