2022
DOI: 10.1039/d2tc02618j
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Intrareticular electron coupling pathway driven electrochemiluminescence in hydrogen-bonded organic frameworks

Abstract: The annihilation reaction between anionic and cationic radicals of the emitters is a key step to produce electrochemiluminescence (ECL). However, the charge transfer process in the annihilation reaction has not...

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Cited by 20 publications
(20 citation statements)
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“…The relaxed stacking morphology of Mg-MOFs markedly diminished the IREC pathway, leading to only 2.0 times higher relative ECL efficiency compared to TCPPY (Figure B). When one electron and one hole were injected into the top and bottom layers, respectively, the neutral charge density difference revealed mutual electron density depletion and accumulation within vertical stacking units (Figure C) . The electron transfer from the anion radical to the cation radical within HOF-101 facilitated ECL emission via the IREC pathway (Figure D).…”
Section: Mechanisms Of Ecl Enhancementmentioning
confidence: 99%
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“…The relaxed stacking morphology of Mg-MOFs markedly diminished the IREC pathway, leading to only 2.0 times higher relative ECL efficiency compared to TCPPY (Figure B). When one electron and one hole were injected into the top and bottom layers, respectively, the neutral charge density difference revealed mutual electron density depletion and accumulation within vertical stacking units (Figure C) . The electron transfer from the anion radical to the cation radical within HOF-101 facilitated ECL emission via the IREC pathway (Figure D).…”
Section: Mechanisms Of Ecl Enhancementmentioning
confidence: 99%
“…When one electron and one hole were injected into the top and bottom layers, respectively, the neutral charge density difference revealed mutual electron density depletion and accumulation within vertical stacking units (Figure 7C). 40 The electron transfer from the anion radical to the cation radical within HOF-101 facilitated ECL emission via the IREC pathway (Figure 7D). Moreover, the unique properties of HOFs enable in situ self-repairing ECL ability, providing a new proof of concept for designing an efficient ECL system.…”
Section: Intrareticular Electron Coupling Pathwaymentioning
confidence: 99%
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“…Of the large variety of films developed to generate ECL, [21, 22] less attention has been paid to crystalline films comprising organic molecules due to strong quenching often seen in molecular aggregates [7, 19] . In particular, the feasibility of small‐molecule organic semiconductors has not been explored, with the exception of a study on a pyrene‐based 2D hydrogen‐bonded organic framework capable of intrareticular charge transfer [33] . Although BTBT derivatives are some of the most investigated organic semiconductors and exhibit excellent hole mobility derived from the 2D herringbone packing, [29] we are unaware of prior studies on the use of BTBT derivatives as film ECL emitters.…”
Section: Resultsmentioning
confidence: 99%
“…Furthermore, HOF-101 is a photocatalytic material with good conductivity that facilitates electron excitation and transfer. 24 Proton-enhanced transfer cannot be disregarded, as the transfer of two protons and one electron is essential for the regeneration of one molecule of NADH. Based on the well-established ''Grotthuss mechanism'', proton transfer mainly depends on the hydrogen bond network.…”
Section: Nad + /Nadh Shuttling Behaviormentioning
confidence: 99%