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Letteratura scientifica selezionata sul tema "Photoinduced charge accumulation"

Autore: Grafiati

Pubblicato: 7 dicembre 2024

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Articoli di riviste sul tema "Photoinduced charge accumulation"

1

Bonn, Annabell G., and Oliver S. Wenger. "Photoinduced Charge Accumulation in Molecular Systems." CHIMIA International Journal for Chemistry 69, no. 1 (2015): 17–21. http://dx.doi.org/10.2533/chimia.2015.17.

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2

Kokorin, Alexander I., Tatyana V. Sviridova, Elizaveta A. Konstantinova, Dmitry V. Sviridov, and Detlef W. Bahnemann. "Dynamics of Photogenerated Charge Carriers in TiO2/MoO3, TiO2/WO3 and TiO2/V2O5 Photocatalysts with Mosaic Structure." Catalysts 10, no. 9 (2020): 1022. http://dx.doi.org/10.3390/catal10091022.

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Abstract (sommario):

Titania is a widely used photocatalytic material possessing such advantages as low cost and high reactivity under the ultraviolet light illumination. However, the fast recombination of photoexcited charge carriers limits its application. Herein, we have synthesized original nanomaterials with mosaic structures that exhibited well-defined heterojunctions and new properties. Using SEM, XRD, EPR spectroscopy, photocatalytic measurements, and photoinduced pathphysiological activity of these photocatalysts, we studied the processes of charge carrier accumulation in TiO2/MoO3, TiO2/WO3, and TiO2/V2O

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3

Bonn, Annabell G., and Oliver S. Wenger. "Photoinduced charge accumulation by metal ion-coupled electron transfer." Physical Chemistry Chemical Physics 17, no. 37 (2015): 24001–10. http://dx.doi.org/10.1039/c5cp04718h.

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Strong Lewis acid/Lewis base interactions between Sc<sup>3+</sup>and superoxide anions permit the light-driven accumulation of two positive charges on oligotriarylamine units with appended Ru(ii) photosensitizers.

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4

Kamat, Prashant V. "Photoinduced transformations in semiconductormetal nanocomposite assemblies." Pure and Applied Chemistry 74, no. 9 (2002): 1693–706. http://dx.doi.org/10.1351/pac200274091693.

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Semiconductormetal nanocomposites provide a simple and convenient way to tailor the properties of photocatalysts. Modification of semiconductor surface improves charge separation and promotes interfacial charge-transfer processes in nanocomposite systems. Charge accumulation in the metal layer results in Fermi-level equilibration raising the quasi-Fermi level of the composite close to the conduction band level of the oxide semiconductor. Phototransformations of such compositesincluding morphological changes, interfacial charge-transfer processes and photocurrent generation of TiO2-capped gold

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5

Ha-Thi, M. H., V. T. Pham, T. Pino, et al. "Photoinduced electron transfer in a molecular dyad by nanosecond pump–pump–probe spectroscopy." Photochemical & Photobiological Sciences 17, no. 7 (2018): 903–9. http://dx.doi.org/10.1039/c8pp00048d.

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6

Farran, Rajaa, Long Le-Quang, Jean-Marie Mouesca, et al. "[Cr(ttpy)2]3+ as a multi-electron reservoir for photoinduced charge accumulation." Dalton Transactions 48, no. 20 (2019): 6800–6811. http://dx.doi.org/10.1039/c9dt00848a.

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Abstract (sommario):

Under visible light irradiation [Cr(ttpy)2]3+ can be reduced twice by a tertiary amine; the photoreduction processes are accelerated in the presence of [Ru(bpy)<sub>3</sub>]<sup>2+</sup> acting as an antenna thanks to an efficient electron transfer reaction from [Ru(bpy)<sub>3</sub>]<sup>2+*</sup> to [Cr(ttpy)<sub>2</sub>]<sup>3+</sup>.

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7

Zang, Huidong, Yu-Che Hsiao, and Bin Hu. "Surface-charge accumulation effects on open-circuit voltage in organic solar cells based on photoinduced impedance analysis." Phys. Chem. Chem. Phys. 16, no. 10 (2014): 4971–76. http://dx.doi.org/10.1039/c3cp54908a.

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8

Schulz, Martin, Nina Hagmeyer, Frerk Wehmeyer, et al. "Photoinduced Charge Accumulation and Prolonged Multielectron Storage for the Separation of Light and Dark Reaction." Journal of the American Chemical Society 142, no. 37 (2020): 15722–28. http://dx.doi.org/10.1021/jacs.0c03779.

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9

Kuss-Petermann, Martin, and Oliver S. Wenger. "Pump-Pump-Probe Spectroscopy of a Molecular Triad Monitoring Detrimental Processes for Photoinduced Charge Accumulation." Helvetica Chimica Acta 100, no. 1 (2016): e1600283. http://dx.doi.org/10.1002/hlca.201600283.

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10

Das, Sushanta K., Navaneetha K. Subbaiyan, Francis D'Souza, Atula S. D. Sandanayaka, Takatsugu Wakahara та Osamu Ito. "Formation and photoinduced properties of zinc porphyrin-SWCNT and zinc phthalocyanine-SWCNT nanohybrids using diameter sorted nanotubes assembled via metal-ligand coordination and π–π stacking". Journal of Porphyrins and Phthalocyanines 15, № 09n10 (2011): 1033–43. http://dx.doi.org/10.1142/s1088424611003951.

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Abstract (sommario):

Photoinduced electron transfer processes in self-assembled zinc porphyrin ( ZnP ) or zinc phthalocyanine ( ZnPc ) with semiconducting (7,6)- and (6,5)-enriched SWCNTs were investigated. To bind photosensitizers to SWCNTs, first, pyrene covalently functionalized with a phenylimidazole (Im-Pyr) entity was treated with SWCNTs. Exfoliation of SWCNTs occurred due to π–π stacking of pyrene with nanotubes walls leaving the imidazole entity that was subsequently used to coordinate ZnP or ZnPc in o-dichlorobenzene (DCB). The donor-acceptor nanohybrids thus formed were characterized by TEM imaging, stea

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Tesi sul tema "Photoinduced charge accumulation"

1

Cruz, neto Daniel H. "Photophysical investigations of reversible charge accumulation in photocatalytic molecular systems." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASP098.

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Abstract (sommario):

Inspirée de la nature, la conversion de l’énergie solaire par photosynthèse artificielle est l’une des solutions les plus prometteuses à la crise énergétique mondiale actuelle. Cependent, déployer des systèmes artificiels fonctionnels nécessite une compréhension approfondie des processus intégrés dans le fonctionnement des systèmes naturels car ils fournissent les directions pour réaliser des dispositifs de photosynthèse artificielle. Ces processus incluent l’absorption de la lumière, la séparation des charges, plusieurs étapes de transfert de charges menant à leur accumulation et, enfin, la c

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2

Karlsson, Susanne. "Single and Accumulative Electron Transfer – Prerequisites for Artificial Photosynthesis." Doctoral thesis, Uppsala universitet, Kemisk fysik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-122206.

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Abstract (sommario):

Photoinduced electron transfer is involved in a number of photochemical and photobiological processes. One example of this is photosynthesis, where the absorption of sunlight leads to the formation of charge-separated states by electron transfer. The redox equivalents built up by successive photoabsorption and electron transfer is further used for the oxidation of water and reduction of carbon dioxide to sugars. The work presented in this thesis is part of an interdisciplinary effort aiming at a functional mimic of photosynthesis. The goal of this project is to utilize sunlight to produce rene

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