Interfacial Charge-Transfer Absorption: 3. Application to Semiconductor−Molecule Assemblies

Autor:	N. Sutin, Carol Creutz, Bruce S. Brunschwig
Rok vydání:	2006
Předmět:	Coupling business.industry Chemistry Nanotechnology Charge (physics) Electron Spectral line Surfaces Coatings and Films Delocalized electron Semiconductor Chemical physics Materials Chemistry Molecule Physical and Theoretical Chemistry business Absorption (electromagnetic radiation)
Zdroj:	The Journal of Physical Chemistry B. 110:25181-25190
ISSN:	1520-5207 1520-6106
DOI:	10.1021/jp063953d
Popis:	Interfacial charge-transfer absorption (IFCTA) provides information concerning the barriers to charge transfer between molecules and the energy levels of a metal/semiconductor and the magnitude of the electronic coupling and could thus provide a powerful tool for understanding interfacial charge-transfer kinetics. Here we utilize a previously published model (J. Phys. Chem. B 2005, 109, 10251) to predict the energetics of IFCTA spectra for semiconductors and compare literature observations to these predictions for n-type semiconductors (largely TiO2). In contrast to metals, where IFCTA has been only rarely observed, new absorption features due to IFCTA are common for semiconductors such as TiO2. At issue is whether the electron accepting states in the TiO2 are localized or delocalized over the conduction band.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a0cd6f112ff4bcb14d3d9e7a400445a https://doi.org/10.1021/jp063953d Zobrazit plný text záznamu