Atomically resolved single-molecule triplet quenching
| Autor: | Sophia Sokolov, Jascha Repp, Jinbo Peng, Daniel Hernangómez-Pérez, Ferdinand Evers, Leo Gross, John M. Lupton |
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| Rok vydání: | 2021 |
| Předmět: |
Quenching
Multidisciplinary Organic solar cell Non-equilibrium thermodynamics chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Oxygen Pentacene chemistry.chemical_compound chemistry Chemical physics 0103 physical sciences Photocatalysis Molecule Triplet state 010306 general physics 0210 nano-technology |
| Zdroj: | Science (New York, N.Y.). 373(6553) |
| ISSN: | 1095-9203 |
| Popis: | Triplet-state lifetime quenched by oxygen Little is known about the atomistic mechanism that nature uses to mitigate the destructive interaction of triplet-excited pigment chromophores with omnipresent oxygen. Peng et al. tackled this challenge by developing a technique based on conducting atomic force microscopy to populate and track triplets in a single pentacene molecule, a model ϖ-conjugated system, placed on a sodium chloride surface (see the Perspective by Li and Jiang). The authors show how the triplet-state lifetime can be quenched in controllable manner by atomic-scale manipulations with oxygen co-adsorbed in close vicinity. The presented single-molecule spectroscopy paves the way for further atomically resolved studies of triplet excited states that play an important role in many other fields, such as organic electronics, photocatalysis, and photodynamic therapy. Science , abh1155, this issue p. 452 ; see also abj5860, p. 392 |
| Databáze: | OpenAIRE |
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