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Literatura académica sobre el tema "Photoinduced charge accumulation"
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Artículos de revistas sobre el tema "Photoinduced charge accumulation"
Bonn, Annabell G. y Oliver S. Wenger. "Photoinduced Charge Accumulation in Molecular Systems". CHIMIA International Journal for Chemistry 69, n.º 1 (25 de febrero de 2015): 17–21. http://dx.doi.org/10.2533/chimia.2015.17.
Texto completoKokorin, Alexander I., Tatyana V. Sviridova, Elizaveta A. Konstantinova, Dmitry V. Sviridov y Detlef W. Bahnemann. "Dynamics of Photogenerated Charge Carriers in TiO2/MoO3, TiO2/WO3 and TiO2/V2O5 Photocatalysts with Mosaic Structure". Catalysts 10, n.º 9 (4 de septiembre de 2020): 1022. http://dx.doi.org/10.3390/catal10091022.
Texto completoBonn, Annabell G. y Oliver S. Wenger. "Photoinduced charge accumulation by metal ion-coupled electron transfer". Physical Chemistry Chemical Physics 17, n.º 37 (2015): 24001–10. http://dx.doi.org/10.1039/c5cp04718h.
Texto completoKamat, Prashant V. "Photoinduced transformations in semiconductormetal nanocomposite assemblies". Pure and Applied Chemistry 74, n.º 9 (1 de enero de 2002): 1693–706. http://dx.doi.org/10.1351/pac200274091693.
Texto completoHa-Thi, M. H., V. T. Pham, T. Pino, V. Maslova, A. Quaranta, C. Lefumeux, W. Leibl y A. Aukauloo. "Photoinduced electron transfer in a molecular dyad by nanosecond pump–pump–probe spectroscopy". Photochemical & Photobiological Sciences 17, n.º 7 (2018): 903–9. http://dx.doi.org/10.1039/c8pp00048d.
Texto completoFarran, Rajaa, Long Le-Quang, Jean-Marie Mouesca, Vincent Maurel, Damien Jouvenot, Frédérique Loiseau, Alain Deronzier y Jérôme Chauvin. "[Cr(ttpy)2]3+ as a multi-electron reservoir for photoinduced charge accumulation". Dalton Transactions 48, n.º 20 (2019): 6800–6811. http://dx.doi.org/10.1039/c9dt00848a.
Texto completoZang, Huidong, Yu-Che Hsiao y Bin Hu. "Surface-charge accumulation effects on open-circuit voltage in organic solar cells based on photoinduced impedance analysis". Phys. Chem. Chem. Phys. 16, n.º 10 (2014): 4971–76. http://dx.doi.org/10.1039/c3cp54908a.
Texto completoSchulz, Martin, Nina Hagmeyer, Frerk Wehmeyer, Grace Lowe, Marco Rosenkranz, Bianca Seidler, Alexey Popov, Carsten Streb, Johannes G. Vos y Benjamin Dietzek. "Photoinduced Charge Accumulation and Prolonged Multielectron Storage for the Separation of Light and Dark Reaction". Journal of the American Chemical Society 142, n.º 37 (22 de agosto de 2020): 15722–28. http://dx.doi.org/10.1021/jacs.0c03779.
Texto completoKuss-Petermann, Martin y Oliver S. Wenger. "Pump-Pump-Probe Spectroscopy of a Molecular Triad Monitoring Detrimental Processes for Photoinduced Charge Accumulation". Helvetica Chimica Acta 100, n.º 1 (12 de diciembre de 2016): e1600283. http://dx.doi.org/10.1002/hlca.201600283.
Texto completoDas, Sushanta K., Navaneetha K. Subbaiyan, Francis D'Souza, Atula S. D. Sandanayaka, Takatsugu Wakahara y 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, n.º 09n10 (septiembre de 2011): 1033–43. http://dx.doi.org/10.1142/s1088424611003951.
Texto completoTesis sobre el tema "Photoinduced charge accumulation"
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.
Texto completoInspired by nature’s masterpiece of evolution, the conversion of solar energy through artificial photosynthesis is one of the most promising solutions to the ongoing global energy crisis. Deploying functional artificial mimics of the photosynthetic apparatus, however, requires a deep understanding of the processes embedded in the functioning of naturally photosensitizing organisms as they provide the roadmap to realize artificial photosynthetic devices. These processes include light harvesting, charge separation, multiple charge transfer steps leading to effective charge accumulation and, finally, efficient catalysis. In this work, we investigate all of these elementary steps by employing state-of-the-art time-resolved spectroscopic approaches with the goal of exploring the photophysics of different biomimetic molecular systems devoted to the photoreduction of carbon dioxide (CO₂) to produce energy-rich solar fuels. We start with the development of a novel pump-pump-probe experimental setup that is capable of triggering and detecting the stepwise accumulation of charge through the powerful lens of a resonance-enhanced Raman scattering probe. A model system containing the methyl viologen dication (MV²⁺) as a dual electron acceptor, the prototypical [Ru(bpy)₃]²⁺ complex as a photosensitizer, and ascorbate as a reversible electron donor is used for a proof-of-concept of the technique. Indeed, with the first pump, MV•⁺ is formed and detected through its fingerprint vibrational mode at 1356 cm⁻¹. When the transient concentration of MV•⁺ peaks, we fire the second laser pump and show the possibility of tracking the reversible formation of the two-electron accumulated MV⁰ species through a unique vibrational mode at 992 cm⁻¹. We then move on to investigating catalytically active systems featuring iron porphyrin derivatives as CO₂ reduction catalysts. These porphyrins are integrated into multicomponent biomimetic systems that similarly contain [Ru(bpy)₃]²⁺ and ascorbate as photosensitizer and reversible electron donor, respectively. For the urea-functionalized derivative (FeUr), a catalyst with a hydrogen-bonding network lodged in its second coordination sphere, we provide a full mechanistic depiction of all photoinduced processes leading to charge accumulation and its activation towards CO₂. In inert atmosphere, starting from Feˡˡˡ, we report the stepwise formation of the formal Feˡ species as a result of the double pump excitation strategy. Remarkably, under catalytic conditions in the presence of CO₂, our spectroscopy-based approach provides compelling evidence that the Feˡ oxidation state of FeUr, product of two consecutive electron transfer steps, is already catalytically active, evidenced by the accumulation of the stable Feˡˡ‒CO intermediate of the CO₂ reduction cycle. Going beyond FeUr, we show that Feˡ is catalytically active irrespective of the design strategy used in the functionalization of the porphyrin macrocycle, challenging the classical picture of CO₂ reduction catalysis promoted by iron porphyrins. Finally, we move away from the prototypical [Ru(bpy)₃]²⁺ complex and dive into the photophysics of different photosensitizers based on earth-abundant elements, including copper(I)-based complexes, a perfluorinated zinc porphyrin derivative (ZnF₂₀), and a fully organic triazatriangulenium carbocationic dye (TATA⁺). Importantly, we show that the TATA⁺ dye is capable of photosensitizing charge accumulation on the active FeUr-based system, activating it towards the reduction of CO₂. The characterization of new photosensitizing units based on abundant elements is fundamental for the development of artificial photosystems with real-world applications
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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