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Molecular‐Level Insulation: An Approach to Controlling Interfacial Charge Transfer
Author(s) -
Haque S. A.,
Park J. S.,
Srinivasarao M.,
Durrant J. R.
Publication year - 2004
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.200400327
Subject(s) - electrode , materials science , nanocrystalline material , oxide , encapsulation (networking) , nanotechnology , chemical physics , optoelectronics , computer science , chemistry , computer network , metallurgy
A novel approach to the attachment of molecular dyes to nanocrystalline TiO 2 electrodes (see Figure) is reported. Cyclodextrin encapsulation of an organic dye is shown to result in strong binding to the metal oxide electrode. The encapsulation furthermore results in a well‐defined spatial separation of the organic dye from the electrode surface, allowing the photogeneration of a long‐lived charge‐separated state.