Davydov splitting and band structure for triplet excitons in pyrene

S. Arnold; W. B. Whitten; A. C. Damask

doi:10.1103/PhysRevB.3.3452

Davydov splitting and band structure for triplet excitons in pyrene

S. Arnold, W. B. Whitten, A. C. Damask

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Abstract

The first peak (0-0 transition) of the singlet-triplet delayed fluorescence excitation spectrum in pyrene has been investigated in polarized light. The b-polarized transition is found to be at higher energy than the a-polarized transition by a Davydov splitting of 2.4 ± 0.6 cm-1. An expression for the energy bands ε(k→) is derived and related to the Davydov splitting. Transport properties of the triplet excitons have been evaluated and indicate that the diffusion of triplet excitons in pyrene is due more to a hopping process than to coherent band motion.

Original language	English (US)
Pages (from-to)	3452-3457
Number of pages	6
Journal	Physical Review B
Volume	3
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.3.3452
State	Published - 1971

ASJC Scopus subject areas

Condensed Matter Physics

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10.1103/PhysRevB.3.3452

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abstract = "The first peak (0-0 transition) of the singlet-triplet delayed fluorescence excitation spectrum in pyrene has been investigated in polarized light. The b-polarized transition is found to be at higher energy than the a-polarized transition by a Davydov splitting of 2.4 ± 0.6 cm-1. An expression for the energy bands ε(k→) is derived and related to the Davydov splitting. Transport properties of the triplet excitons have been evaluated and indicate that the diffusion of triplet excitons in pyrene is due more to a hopping process than to coherent band motion.",

author = "S. Arnold and Whitten, {W. B.} and Damask, {A. C.}",

year = "1971",

doi = "10.1103/PhysRevB.3.3452",

language = "English (US)",

volume = "3",

pages = "3452--3457",

journal = "Physical Review B",

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T1 - Davydov splitting and band structure for triplet excitons in pyrene

AU - Arnold, S.

AU - Whitten, W. B.

AU - Damask, A. C.

PY - 1971

Y1 - 1971

N2 - The first peak (0-0 transition) of the singlet-triplet delayed fluorescence excitation spectrum in pyrene has been investigated in polarized light. The b-polarized transition is found to be at higher energy than the a-polarized transition by a Davydov splitting of 2.4 ± 0.6 cm-1. An expression for the energy bands ε(k→) is derived and related to the Davydov splitting. Transport properties of the triplet excitons have been evaluated and indicate that the diffusion of triplet excitons in pyrene is due more to a hopping process than to coherent band motion.

AB - The first peak (0-0 transition) of the singlet-triplet delayed fluorescence excitation spectrum in pyrene has been investigated in polarized light. The b-polarized transition is found to be at higher energy than the a-polarized transition by a Davydov splitting of 2.4 ± 0.6 cm-1. An expression for the energy bands ε(k→) is derived and related to the Davydov splitting. Transport properties of the triplet excitons have been evaluated and indicate that the diffusion of triplet excitons in pyrene is due more to a hopping process than to coherent band motion.

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DO - 10.1103/PhysRevB.3.3452

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JO - Physical Review B

JF - Physical Review B

IS - 10

ER -

Davydov splitting and band structure for triplet excitons in pyrene

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