### Abstract

Non-Lorentzian persistent hole shapes of chromophore in organic glasses have been explained by considering fractal structures of the organic glass hosts. The measured hole shape is well reproduced by the Fourier transform of the non-exponentially decaying function of τ, exp(-cTτ^{D/3}), where c is a constant, T is the temperature, and D is the fractal dimension of the glass host. The fractal dimension D obtained by fitting the theoretical curve to the observed hole shape of oxazine 1 in polyvinyl alcohol glass is 2.3 ± 0.1 and that of oxazine 1 in ethanol glass is 2.9 ± 0.1. These values of fractal dimension are in good agreement with the values obtained in our previous experiment in both glass hosts doped with a different chromophore, HITC.

Original language | English |
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Pages (from-to) | 193-196 |

Number of pages | 4 |

Journal | Chemical Physics Letters |

Volume | 189 |

Issue number | 2 |

DOIs | |

Publication status | Published - Jan 31 1992 |

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### ASJC Scopus subject areas

- Physics and Astronomy(all)
- Physical and Theoretical Chemistry

### Cite this

*Chemical Physics Letters*,

*189*(2), 193-196. https://doi.org/10.1016/0009-2614(92)85122-Q

**Fractal interpretation of non-Lorentzian persistent hole shapes in organic glasses.** / Uemura, Sadao; Okada, Masashi; Abedin, Kazi Monowar; Nakatsuka, Hiroki.

Research output: Contribution to journal › Article

*Chemical Physics Letters*, vol. 189, no. 2, pp. 193-196. https://doi.org/10.1016/0009-2614(92)85122-Q

}

TY - JOUR

T1 - Fractal interpretation of non-Lorentzian persistent hole shapes in organic glasses

AU - Uemura, Sadao

AU - Okada, Masashi

AU - Abedin, Kazi Monowar

AU - Nakatsuka, Hiroki

PY - 1992/1/31

Y1 - 1992/1/31

N2 - Non-Lorentzian persistent hole shapes of chromophore in organic glasses have been explained by considering fractal structures of the organic glass hosts. The measured hole shape is well reproduced by the Fourier transform of the non-exponentially decaying function of τ, exp(-cTτD/3), where c is a constant, T is the temperature, and D is the fractal dimension of the glass host. The fractal dimension D obtained by fitting the theoretical curve to the observed hole shape of oxazine 1 in polyvinyl alcohol glass is 2.3 ± 0.1 and that of oxazine 1 in ethanol glass is 2.9 ± 0.1. These values of fractal dimension are in good agreement with the values obtained in our previous experiment in both glass hosts doped with a different chromophore, HITC.

AB - Non-Lorentzian persistent hole shapes of chromophore in organic glasses have been explained by considering fractal structures of the organic glass hosts. The measured hole shape is well reproduced by the Fourier transform of the non-exponentially decaying function of τ, exp(-cTτD/3), where c is a constant, T is the temperature, and D is the fractal dimension of the glass host. The fractal dimension D obtained by fitting the theoretical curve to the observed hole shape of oxazine 1 in polyvinyl alcohol glass is 2.3 ± 0.1 and that of oxazine 1 in ethanol glass is 2.9 ± 0.1. These values of fractal dimension are in good agreement with the values obtained in our previous experiment in both glass hosts doped with a different chromophore, HITC.

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U2 - 10.1016/0009-2614(92)85122-Q

DO - 10.1016/0009-2614(92)85122-Q

M3 - Article

VL - 189

SP - 193

EP - 196

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 2

ER -