Theory of energy transfer in organic nanocrystals
EntityUAM. Departamento de Física Teórica de la Materia Condensada
10.1002/adom.202001447Advanced Optical Materials 8.23 (2020): 2001447
Funded byThis work was funded by the Spanish Ministry for Science, Innovation, and Universities — AEI grants RTI2018-099737-B-I00, PCI2018-093145 (through the QuantERA program of the European Commission), and MDM-2014-0377 (through the María de Maeztu program for Units of Excellence in R&D), and by the European Research Council under Grant Agreement ERC-2016-STG-714870. It was also supported by a 2019 Leonardo Grant for Researchers and Cultural Creators, BBVA Foundation
Projectinfo:eu-repo/grantAgreement/EC/H2020/714870/EU//MMUSCLES; Gobierno de España. RTI2018-099737-B-I00; Gobierno de España. PCI2018-093145
SubjectsFörster mechanism; Energy transfe; Fluorescence; Organic nanocrystals; Photon confinement; Física
Rights© 2020 The Authors. Published by Wiley-VCH GmbH
Esta obra está bajo una licencia de Creative Commons Reconocimiento-NoComercial 4.0 Internacional.
Recent experiments have shown that highly efficient energy transfer can take place in organic nanocrystals at extremely low acceptor densities. This striking phenomenon has been ascribed to the formation of exciton polaritons thanks to the photon confinement provided by the crystal itself. An alternative theoretical model that accurately reproduces fluorescence lifetime and spectrum measurements in these systems without such an assumption is proposed. The approach treats molecule–photon interactions in the weak-coupling regime, and describes the donor and acceptor population dynamics by means of rate equations with parameters extracted from electromagnetic simulations. The physical insight and predictive value of this model also enables the authors to propose nanocrystal configurations in which acceptor emission dominates the fluorescence spectrum at densities orders of magnitude lower than the experimental ones
Google Scholar:Sáez-Blázquez, Rocío - Feist, Johannes - García-Vidal, Francisco J. - Fernández Domínguez, Antonio Isaac
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