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Enhanced Photocurrents Generated by Supramolecular &!hyphen;Relay/CdS‐Nanoparticle/ Electron‐Donor Structures on Gold Electrodes
Author(s) -
TelVered Ran,
Yildiz Huseyin Bekir,
Willner Itamar
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200801612
Subject(s) - materials science , acceptor , nanoparticle , supramolecular chemistry , electron , electrode , electron acceptor , electron donor , conduction band , photochemistry , trapping , charge carrier , cyclodextrin , optoelectronics , colloidal gold , nanotechnology , crystallography , crystal structure , chemistry , catalysis , organic chemistry , condensed matter physics , ecology , physics , quantum mechanics , biology
Supramolecular assemblies consisting of CdS nanoparticles linked to I − 3 ‐encapsulated β ‐cyclodextrin and to π‐donor–acceptor complexes reveal the generation of enhanced photocurrents as a result of effective charge separation. The donor–acceptor complexes formed lead to effective trapping of the conduction‐band electrons, and to concomitant scavenging of the valence‐band holes by I − 3 ‐ encapsulated in the β ‐cyclodextrin receptor units.