MELVIN, Ambrose; LEBRAUD, Eric; GARRIGUE, Patrick; KUHN, Alexander

doi:10.1039/D0CP03262J

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Licencia de uso del documento

MELVIN, Ambrose
Institut des Sciences Moléculaires [ISM]

LEBRAUD, Eric
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

GARRIGUE, Patrick
Institut des Sciences Moléculaires [ISM]

Idioma

Article de revue

Este ítem está publicado en

Physical Chemistry Chemical Physics. 2020

Royal Society of Chemistry

Resumen en inglés

Separation of electric charges is the most crucial phenomenon in natural photosynthesis, and also extremely important for many artificial energy conversion systems based on semiconductors. The usual roadblock in this context is the fast recombination of electrons and holes. Here we demonstrate that the synergy of light and electric fields allows separating very efficiently electric charges over an unusually large distance in TiO2. The generated internal electric field can also be used to shuttle electrons simultaneously to the two opposite sides of a hybrid TiO2-polyaniline object. This counterintuitive behavior is based on the combination of the principles of bipolar electrochemistry and semi-conductor physics.< Leer menos

Palabras clave en inglés

Bipolar electrochemistry

semiconductors

electrodeposition

photoelectrochemistry

charge separation

DOI

http://dx.doi.org/10.1039/D0CP03262J

Proyecto europeo

Electrochemically induced asymmetry

Orígen

Importado de Hal

Centros de investigación

Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB) - UMR 5026