Publication

Tunable Polaronic Conduction in Anatase TiO2

László Forró, Helmuth Berger, Marco Grioni, Arnaud Magrez, Simon Karl Moser, Jacim Jacimovic
2013
Journal Articles

Abstract

Oxygen vacancies created in anatase TiO2 by UV photons (80–130 eV) provide an effective electron-doping mechanism and induce a hitherto unobserved dispersive metallic state. Angle resolved photoemission reveals that the quasiparticles are large polarons. These results indicate that anatase can be tuned from an insulator to a polaron gas to a weakly correlated metal as a function of doping and clarify the nature of conductivity in this material.

Official source

https://infoscience.epfl.ch/entities/publication/27fee252-d350-487c-bc4a-e598cd9b7ca6

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Tunable Polaronic Conduction in Anatase TiO2

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