Frustrated energy relaxation in an organic glass

R. Richert; H. Bãssler; B. Ries; B. Movaghar; M. Grünewald

doi:10.1080/09500838908214782

Frustrated energy relaxation in an organic glass

R. Richert, H. Bãssler, B. Ries, B. Movaghar, M. Grünewald

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52 Scopus citations

Abstract

Time-dependent transport of triplet excitons in amorphous benzophenone has been investigated in the low-temperature range down to 6 K. The data exhibit some remarkable features associated with the freezing-in of excitations in energy-disordered glasses. The relaxation process is investigated and explained using Monte Carlo simulations and analytical random-walk techniques. The inadequacy of mean-field type methods is demonstrated for the low-temperature domain, where exact averaging techniques can be applied.

Original language	English (US)
Pages (from-to)	95-102
Number of pages	8
Journal	Philosophical Magazine Letters
Volume	59
Issue number	2
DOIs	https://doi.org/10.1080/09500838908214782
State	Published - Feb 1989
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/09500838908214782

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title = "Frustrated energy relaxation in an organic glass",

abstract = "Time-dependent transport of triplet excitons in amorphous benzophenone has been investigated in the low-temperature range down to 6 K. The data exhibit some remarkable features associated with the freezing-in of excitations in energy-disordered glasses. The relaxation process is investigated and explained using Monte Carlo simulations and analytical random-walk techniques. The inadequacy of mean-field type methods is demonstrated for the low-temperature domain, where exact averaging techniques can be applied.",

author = "R. Richert and H. B{\~a}ssler and B. Ries and B. Movaghar and M. Gr{\"u}newald",

note = "Funding Information: The Marburg group acknowledge financial support by the Deutsche Forschungsgemeinschaft.",

year = "1989",

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AU - Richert, R.

AU - Bãssler, H.

AU - Ries, B.

AU - Movaghar, B.

AU - Grünewald, M.

N1 - Funding Information: The Marburg group acknowledge financial support by the Deutsche Forschungsgemeinschaft.

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Y1 - 1989/2

N2 - Time-dependent transport of triplet excitons in amorphous benzophenone has been investigated in the low-temperature range down to 6 K. The data exhibit some remarkable features associated with the freezing-in of excitations in energy-disordered glasses. The relaxation process is investigated and explained using Monte Carlo simulations and analytical random-walk techniques. The inadequacy of mean-field type methods is demonstrated for the low-temperature domain, where exact averaging techniques can be applied.

AB - Time-dependent transport of triplet excitons in amorphous benzophenone has been investigated in the low-temperature range down to 6 K. The data exhibit some remarkable features associated with the freezing-in of excitations in energy-disordered glasses. The relaxation process is investigated and explained using Monte Carlo simulations and analytical random-walk techniques. The inadequacy of mean-field type methods is demonstrated for the low-temperature domain, where exact averaging techniques can be applied.

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Frustrated energy relaxation in an organic glass

Abstract

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