Exciton-Exciton Annihilation as a Mechanism for Uphill Transfer in a Molecular Excitonic System

Autor:	Eberhard Riedle, Bastian Baudisch, Craig N. Lincoln, Jürgen Hauer, Pavel Malevich, Hans von Berlepsch, Matthias Block
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	UP 2018 Annihilation Materials science 010308 nuclear & particles physics Exciton Physics QC1-999 Time resolution Radiation Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences Molecular physics Exciton dynamics chemistry.chemical_compound chemistry 0103 physical sciences Ultrafast laser spectroscopy 21st International Conference on Ultrafast Phenomena 2018 Cyanine Diffusion (business) 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften 010306 general physics
Zdroj:	EPJ Web of Conferences, Vol 205, p 06017 (2019)
DOI:	10.1051/epjconf/201920506017
Popis:	Exciton dynamics in a HJ-aggregate of cyanine dye TTBC are investigated by transient absorption with a time resolution of -3 cm2s-1 are found, leading to maximal diffusion lengths of 449 and 14.5 nm. The findings indicate that exciton-exciton annihilation is the origin of effective uphill transfer. This mechanism, if present under solar radiation, maybe useful for organic photovoltaic systems.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4925a0b357c85a714b613c82f2a697e8 https://doi.org/10.1051/epjconf/201920506017 Zobrazit plný text záznamu