BibTex format
@article{Mao:2017:10.1002/chem.201605232,
author = {Mao, B and Calatayud, DG and Mirabello, V and Kuganathan, N and Ge, H and Jacobs, RMJ and Shepherd, AM and Ribeiro, Martins JA and Bernardino, de la Serna J and Hodges, BJ and Botchway, SW and Pascu, SI},
doi = {10.1002/chem.201605232},
journal = {Chemistry - A European Journal},
pages = {9772--9789},
title = {Fluorescence-lifetime imaging and super-resolution microscopies shed light on the directed- and self-assembly of functional porphyrins onto carbon nanotubes and flat surfaces},
url = {http://dx.doi.org/10.1002/chem.201605232},
volume = {23},
year = {2017}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Functional porphyrins have attracted intense attention due to their remarkably high extinction coefficients in the visible region and potential for optical and energyrelated applications. Two new routes to functionalised SWNTs have been established using a bulky ZnIIporphyrin featuring thiolate groups at the periphery. We probed the optical properties of this zinc(II)substituted, bulky aryl porphyrin and those of the corresponding new nanocomposites with single walled carbon nanotube (SWNTs) and coronene, as a model for graphene. We report hereby on: i)the supramolecular interactions between the pristine SWNTs and ZnIIporphyrin by virtue of π–π stacking, and ii)a novel covalent binding strategy based on the Bingel reaction. The functional porphyrins used acted as dispersing agent for the SWNTs and the resulting nanohybrids showed improved dispersibility in common organic solvents. The synthesized hybrid materials were probed by various characterisation techniques, leading to the prediction that supramolecular polymerisation and host–guest functionalities control the fluorescence emission intensity and fluorescence lifetime properties. For the first time, XPS studies highlighted the differences in covalent versus noncovalent attachments of functional metalloporphyrins to SWNTs. Gasphase DFT calculations indicated that the ZnIIporphyrin interacts noncovalently with SWNTs to form a donor–acceptor complex. The covalent attachment of the porphyrin chromophore to the surface of SWNTs affects the absorption and emission properties of the hybrid system to a greater extent than in the case of the supramolecular functionalisation of the SWNTs. This represents a synthetic challenge as well as an opportunity in the design of functional nanohybrids for future sensing and optoelectronic applications.
AU - Mao,B
AU - Calatayud,DG
AU - Mirabello,V
AU - Kuganathan,N
AU - Ge,H
AU - Jacobs,RMJ
AU - Shepherd,AM
AU - Ribeiro,Martins JA
AU - Bernardino,de la Serna J
AU - Hodges,BJ
AU - Botchway,SW
AU - Pascu,SI
DO - 10.1002/chem.201605232
EP - 9789
PY - 2017///
SN - 0947-6539
SP - 9772
TI - Fluorescence-lifetime imaging and super-resolution microscopies shed light on the directed- and self-assembly of functional porphyrins onto carbon nanotubes and flat surfaces
T2 - Chemistry - A European Journal
UR - http://dx.doi.org/10.1002/chem.201605232
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000405923800014&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/67545
VL - 23
ER -