TIME-DEPENDENT NON-EQUILIBRIUM EXCITON DIFFUSION IN AN ORGANIC GLASS.

Ranko Richert, B. Ries, H. Baessler

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Decay of donor phosphorescence is used as a sensor for time-dependent diffusion of triplet excitons in an amorphous organic solid (benzophenone) where diagonal disorder of the hopping sites prevails. The exciton jump rate is found to follow a t** alpha ** minus **1 law. Between 4. 2 K and 100 K the dispersion parameter alpha increases from 0. 25 to 0. 55. The results are compared with computer simulations based on experimental data for the density-of-states distribution.

Original languageEnglish (US)
JournalPhilosophical Magazine B: Physics of Condensed Matter; Electronic, Optical and Magnetic Properties
Volume49
Issue number3
StatePublished - Mar 1984
Externally publishedYes

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Excitons
Glass
Phosphorescence
Sensors
Computer simulation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

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title = "TIME-DEPENDENT NON-EQUILIBRIUM EXCITON DIFFUSION IN AN ORGANIC GLASS.",
abstract = "Decay of donor phosphorescence is used as a sensor for time-dependent diffusion of triplet excitons in an amorphous organic solid (benzophenone) where diagonal disorder of the hopping sites prevails. The exciton jump rate is found to follow a t** alpha ** minus **1 law. Between 4. 2 K and 100 K the dispersion parameter alpha increases from 0. 25 to 0. 55. The results are compared with computer simulations based on experimental data for the density-of-states distribution.",
author = "Ranko Richert and B. Ries and H. Baessler",
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N2 - Decay of donor phosphorescence is used as a sensor for time-dependent diffusion of triplet excitons in an amorphous organic solid (benzophenone) where diagonal disorder of the hopping sites prevails. The exciton jump rate is found to follow a t** alpha ** minus **1 law. Between 4. 2 K and 100 K the dispersion parameter alpha increases from 0. 25 to 0. 55. The results are compared with computer simulations based on experimental data for the density-of-states distribution.

AB - Decay of donor phosphorescence is used as a sensor for time-dependent diffusion of triplet excitons in an amorphous organic solid (benzophenone) where diagonal disorder of the hopping sites prevails. The exciton jump rate is found to follow a t** alpha ** minus **1 law. Between 4. 2 K and 100 K the dispersion parameter alpha increases from 0. 25 to 0. 55. The results are compared with computer simulations based on experimental data for the density-of-states distribution.

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JO - Philosophical Magazine B: Physics of Condensed Matter; Electronic, Optical and Magnetic Properties

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