%0 Journal Article %T Luminescence amplification at BiVO4 photoanodes by photoinduced electrochemiluminescence %+ Institut des Sciences Moléculaires (ISM) %+ Institut des Sciences Chimiques de Rennes (ISCR) %+ Synthèse Caractérisation Analyse de la Matière (ScanMAT) %+ Lebanese University [Beirut] (LU) %A Sojic, Neso %A Yu, Jing %A Saada, Hiba %A Abdallah, Rawa %A Loget, Gabriel %Z China Scholarship Council %Z Azm and Saade Association %< avec comité de lecture %@ 1433-7851 %J Angewandte Chemie International Edition %I Wiley-VCH Verlag %V 59 %N 35 %P 15157-15160 %8 2020 %D 2020 %R 10.1002/anie.202004634 %M 32343476 %K photoelectrochemistry %K bismuth vanadate %K electrochemiluminescence %K luminol %K enhanced luminescence %Z Chemical SciencesJournal articles %X Photoinduced electrochemiluminescence (PECL) combines semiconductor (SC) photoelectrochemistry with electrochemiluminescence (ECL). In PECL, the incident light is converted to a different wavelength by an electrochemical reaction at a SC photoelectrode and allows to trigger ECL at unprecedented low potentials. This concept has been employed so far to design up-conversion systems using Si or III-V SCs. Nevertheless, PECL strongly suffers from the photoelectrochemical instability of these low bandgap SCs. Here, we report for the first time an original light conversion strategy based on PECL of a luminol derivative (L-012) at BiVO 4 photoanodes in water. An incident light photo-excites simultaneously the L-012 fluorescence and the photoanode. However, the resulting fluorescence signal is surpassed by the PECL emission. In addition, we show that, with this system, PECL can be induced at a potential as low as -0.4 V for several hours and that it can be employed to finely tune L-012 luminescence. This remarkable light enhancement and the record low applied potential are promising for the design of new analytical strategies and light-addressable systems. %G English %2 https://univ-rennes.hal.science/hal-02563400/document %2 https://univ-rennes.hal.science/hal-02563400/file/Sojic%20et%20al-2020-Luminescence%20amplification%20at%20BiVO4%20photoanodes%20by%20photoinduced.pdf %L hal-02563400 %U https://univ-rennes.hal.science/hal-02563400 %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ ENSC-RENNES %~ UNIV-BORDEAUX %~ ISCR %~ SCR_MACSE %~ STATS-UR1 %~ UR1-SPM %~ INC-CNRS %~ UR1-UFR-SPM %~ UR1-HAL %~ UR1-SDLM %~ SCANMAT %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ TEST-HALCNRS %~ UR1-MMS %~ TEST2-HALCNRS