Light and electric field induced unusual large-scale charge separation in hybrid semiconductor objects
| hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
| dc.contributor.author | MELVIN, Ambrose | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | LEBRAUD, Eric | |
| hal.structure.identifier | Institut des Sciences Moléculaires [ISM] | |
| dc.contributor.author | GARRIGUE, Patrick | |
| hal.structure.identifier | Institut Polytechnique de Bordeaux [Bordeaux INP] | |
| dc.contributor.author | KUHN, Alexander | |
| dc.date.issued | 2020 | |
| dc.identifier.issn | 1463-9076 | |
| dc.description.abstractEn | 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. | |
| dc.language.iso | en | |
| dc.publisher | Royal Society of Chemistry | |
| dc.subject.en | Bipolar electrochemistry | |
| dc.subject.en | semiconductors | |
| dc.subject.en | electrodeposition | |
| dc.subject.en | photoelectrochemistry | |
| dc.subject.en | charge separation | |
| dc.title.en | Light and electric field induced unusual large-scale charge separation in hybrid semiconductor objects | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1039/D0CP03262J | |
| dc.subject.hal | Chimie | |
| dc.description.sponsorshipEurope | Electrochemically induced asymmetry | |
| bordeaux.journal | Physical Chemistry Chemical Physics | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-02938181 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-02938181v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Chemistry%20Chemical%20Physics&rft.date=2020&rft.eissn=1463-9076&rft.issn=1463-9076&rft.au=MELVIN,%20Ambrose&LEBRAUD,%20Eric&GARRIGUE,%20Patrick&KUHN,%20Alexander&rft.genre=article |
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