Triplet exciton fusion at dislocations in anthracene

K. Yokoi; Y. Ohba

doi:10.1063/1.453204

Triplet exciton fusion at dislocations in anthracene

K. Yokoi, Y. Ohba

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The fusion reaction of triplet excitons trapped at edge dislocations (001)[010] was studied in anthracene crystals by observing delayed fluorescence. The fusion rate obtained by kinetic analysis which includes the exciton-trapping effect is about unity measured in cm³ s ^-1, which is much greater than the fusion rate of free excitons (≅4×10^-12 cm³ s^-1), and also greater than an estimation based on the diffusion transport of trapped excitons along the dislocation line. The fusion mechanism of a pair of trapped excitons must be dominated by some long-range interaction.

Original language	English
Pages (from-to)	1887-1891
Number of pages	5
Journal	The Journal of Chemical Physics
Volume	87
Issue number	3
DOIs	https://doi.org/10.1063/1.453204
Publication status	Published - 1987

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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title = "Triplet exciton fusion at dislocations in anthracene",

abstract = "The fusion reaction of triplet excitons trapped at edge dislocations (001)[010] was studied in anthracene crystals by observing delayed fluorescence. The fusion rate obtained by kinetic analysis which includes the exciton-trapping effect is about unity measured in cm3 s -1, which is much greater than the fusion rate of free excitons (≅4×10-12 cm3 s-1), and also greater than an estimation based on the diffusion transport of trapped excitons along the dislocation line. The fusion mechanism of a pair of trapped excitons must be dominated by some long-range interaction.",

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AU - Yokoi, K.

AU - Ohba, Y.

PY - 1987

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N2 - The fusion reaction of triplet excitons trapped at edge dislocations (001)[010] was studied in anthracene crystals by observing delayed fluorescence. The fusion rate obtained by kinetic analysis which includes the exciton-trapping effect is about unity measured in cm3 s -1, which is much greater than the fusion rate of free excitons (≅4×10-12 cm3 s-1), and also greater than an estimation based on the diffusion transport of trapped excitons along the dislocation line. The fusion mechanism of a pair of trapped excitons must be dominated by some long-range interaction.

AB - The fusion reaction of triplet excitons trapped at edge dislocations (001)[010] was studied in anthracene crystals by observing delayed fluorescence. The fusion rate obtained by kinetic analysis which includes the exciton-trapping effect is about unity measured in cm3 s -1, which is much greater than the fusion rate of free excitons (≅4×10-12 cm3 s-1), and also greater than an estimation based on the diffusion transport of trapped excitons along the dislocation line. The fusion mechanism of a pair of trapped excitons must be dominated by some long-range interaction.

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Triplet exciton fusion at dislocations in anthracene

Abstract

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