FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2330401703> ?p ?o ?g. }

• W2330401703 endingPage "15396" @default.
• W2330401703 startingPage "15384" @default.
• W2330401703 abstract "Transient anisotropy measurements are reported as a new spectroscopic tool for mechanistic characterization of photoinduced charge-transfer and energy-transfer self-exchange reactions at molecule–semiconductor interfaces. An anisotropic molecular subpopulation was generated by photoselection of randomly oriented Ru(II)−polypyridyl compounds, anchored to mesoscopic nanocrystalline TiO2 or ZrO2 thin films, with linearly polarized light. Subsequent characterization of the photoinduced dichromism change by visible absorption and photoluminescence spectroscopies on the nano- to millisecond time scale enabled the direct comparison of competitive processes: excited-state decay vs self-exchange energy transfer, or interfacial charge recombination vs self-exchange hole transfer. Self-exchange energy transfer was found to be many orders-of-magnitude faster than hole transfer at the sensitized TiO2 interfaces; for [Ru(dtb)2(dcb)](PF6)2, where dtb is 4,4′-(C(CH3)3)2-2,2′-bipyridine and dcb is 4,4′-(COOH)2-2,2′-bipyridine, anchored to TiO2, the energy-transfer correlation time was θent = 3.3 μs while the average hole-transfer correlation time was ⟨θh+⟩ = 110 ms, under identical experimental conditions. Monte Carlo simulations successfully modeled the anisotropy decays associated with lateral energy transfer. These mesoscopic, nanocrystalline TiO2 thin films developed for regenerative solar cells thus function as active “antennae”, harvesting sunlight and transferring energy across their surface. For the dicationic sensitizer, [Ru(dtb)2(dcb)](PF6)2, anisotropy changes indicative of self-exchange hole transfer were observed only when ions were present in the acetonitrile solution. In contrast, evidence for lateral hole transfer was observed in neat acetonitrile for a neutral sensitizer, cis-Ru(dnb)(dcb)(NCS)2, where dnb is 4,4′-(CH3(CH2)8)2-2,2′-bipyridine, anchored to TiO2. The results indicate that mechanistic models of interfacial charge recombination between electrons in TiO2 and oxidized sensitizers must take into account diffusion of the injected electron and the oxidized sensitizer. The phenomena presented herein represent two means of concentrating potential energy derived from visible light that could be used to funnel energy to molecular catalysts for multiple-charge-transfer reactions, such as the generation of solar fuels." @default.
• W2330401703 created "2016-06-24" @default.
• W2330401703 creator A5020769760 @default.
• W2330401703 creator A5073119387 @default.
• W2330401703 date "2011-09-13" @default.
• W2330401703 modified "2023-10-16" @default.
• W2330401703 title "Characterization of Photoinduced Self-Exchange Reactions at Molecule–Semiconductor Interfaces by Transient Polarization Spectroscopy: Lateral Intermolecular Energy and Hole Transfer across Sensitized TiO₂ Thin Films" @default.
• W2330401703 cites W1963597613 @default.
• W2330401703 cites W1966836042 @default.
• W2330401703 cites W1967601374 @default.
• W2330401703 cites W1968706676 @default.
• W2330401703 cites W1970393749 @default.
• W2330401703 cites W1971193815 @default.
• W2330401703 cites W1973126916 @default.
• W2330401703 cites W1973493562 @default.
• W2330401703 cites W1974765083 @default.
• W2330401703 cites W1978461472 @default.
• W2330401703 cites W1978960411 @default.
• W2330401703 cites W1980216394 @default.
• W2330401703 cites W1983149290 @default.
• W2330401703 cites W1986389500 @default.
• W2330401703 cites W1989158486 @default.
• W2330401703 cites W1991300067 @default.
• W2330401703 cites W1994063627 @default.
• W2330401703 cites W1994169666 @default.
• W2330401703 cites W1997336463 @default.
• W2330401703 cites W1998867439 @default.
• W2330401703 cites W2003870987 @default.
• W2330401703 cites W2005064431 @default.
• W2330401703 cites W2005524723 @default.
• W2330401703 cites W2005977395 @default.
• W2330401703 cites W2006151577 @default.
• W2330401703 cites W2007452336 @default.
• W2330401703 cites W2007770081 @default.
• W2330401703 cites W2010446932 @default.
• W2330401703 cites W2011715705 @default.
• W2330401703 cites W2020933326 @default.
• W2330401703 cites W2021159424 @default.
• W2330401703 cites W2022326291 @default.
• W2330401703 cites W2023116072 @default.
• W2330401703 cites W2023145334 @default.
• W2330401703 cites W2025729481 @default.
• W2330401703 cites W2026262468 @default.
• W2330401703 cites W2026968671 @default.
• W2330401703 cites W2031463109 @default.
• W2330401703 cites W2033728952 @default.
• W2330401703 cites W2036268565 @default.
• W2330401703 cites W2036719045 @default.
• W2330401703 cites W2047008744 @default.
• W2330401703 cites W2054154737 @default.
• W2330401703 cites W2054383122 @default.
• W2330401703 cites W2055977326 @default.
• W2330401703 cites W2056352715 @default.
• W2330401703 cites W2058379166 @default.
• W2330401703 cites W2059726409 @default.
• W2330401703 cites W2059824653 @default.
• W2330401703 cites W2062815702 @default.
• W2330401703 cites W2062817507 @default.
• W2330401703 cites W2063027656 @default.
• W2330401703 cites W2069715982 @default.
• W2330401703 cites W2070035569 @default.
• W2330401703 cites W2071563848 @default.
• W2330401703 cites W2079584500 @default.
• W2330401703 cites W2080775153 @default.
• W2330401703 cites W2091570098 @default.
• W2330401703 cites W2094559512 @default.
• W2330401703 cites W2096770639 @default.
• W2330401703 cites W2101950430 @default.
• W2330401703 cites W2103833118 @default.
• W2330401703 cites W2105348198 @default.
• W2330401703 cites W2123171217 @default.
• W2330401703 cites W2134319104 @default.
• W2330401703 cites W2140917975 @default.
• W2330401703 cites W2142139589 @default.
• W2330401703 cites W2143926587 @default.
• W2330401703 cites W2146195532 @default.
• W2330401703 cites W2151003442 @default.
• W2330401703 cites W2151623472 @default.
• W2330401703 cites W2161452689 @default.
• W2330401703 cites W2172236987 @default.
• W2330401703 cites W2491458126 @default.
• W2330401703 cites W2949451272 @default.
• W2330401703 cites W2953279735 @default.
• W2330401703 cites W4238850712 @default.
• W2330401703 cites W4254558169 @default.
• W2330401703 cites W4376595665 @default.
• W2330401703 cites W9810961 @default.
• W2330401703 doi "https://doi.org/10.1021/ja200652r" @default.
• W2330401703 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21861499" @default.
• W2330401703 hasPublicationYear "2011" @default.
• W2330401703 type Work @default.
• W2330401703 sameAs 2330401703 @default.
• W2330401703 citedByCount "60" @default.
• W2330401703 countsByYear W23304017032012 @default.
• W2330401703 countsByYear W23304017032013 @default.
• W2330401703 countsByYear W23304017032014 @default.
• W2330401703 countsByYear W23304017032015 @default.
• W2330401703 countsByYear W23304017032016 @default.

• next