Issue 54, 2015
From the journal:

Chemical Communications

Hunting for the elusive shallow traps in TiO2 anatase

Liisa J. Antila,*a   Fabio G. Santomauro,b   Leif Hammarström,a   Daniel L. A. Fernandesa  and  Jacinto Sá*ac  

* Corresponding authors

a Department of Chemistry, Ångström Laboratory, Uppsala University, Sweden
E-mail: jacinto.sa@kemi.uu.se, liisa.antila@kemi.uu.se

b Laboratoire de Spectroscopie Ultrarapide, Ecole Polytechnique Fédérale de Lausanne, Switzerland

c Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland

Abstract

Understanding electron mobility on TiO2 is crucial because of its applications in photocatalysis and solar cells. This work shows that shallow traps believed to be involved in electron migration in TiO2 conduction band are formed upon band gap excitation, i.e., are not pre-existing states. The shallow traps in TiO2 results from large polarons and are not restricted to surface.

Graphical abstract: Hunting for the elusive shallow traps in TiO2 anatase

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Article information

DOI
https://doi.org/10.1039/C5CC02876K
Article type
Communication
Submitted
07 Apr 2015
Accepted
03 Jun 2015
First published
04 Jun 2015

Chem. Commun., 2015,51, 10914-10916

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Hunting for the elusive shallow traps in TiO2 anatase

L. J. Antila, F. G. Santomauro, L. Hammarström, D. L. A. Fernandes and J. Sá, Chem. Commun., 2015, 51, 10914 DOI: 10.1039/C5CC02876K

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