Quasi-degenerate self-trapping and its application to anthracene-PMDA: phenomenon, optical absorption and luminescence time-resolved spectroscopy

2001 ◽  
Author(s):  
A. S. Mishchenko ◽  
N. Nagaosa
Keyword(s):  
Optical Absorption ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Self Trapping ◽  
Luminescence Time

Quasi-Degenerate Self-Trapping and its Application to Anthracene-PMDA: Phenomenon, Optical Absorption and Luminescence Time-Resolved Spectroscopy

2001 ◽  
Vol 15 (28n30) ◽  
pp. 3673-3676
Author(s):  
A. S. Mishchenko ◽  
N. Nagaosa
Keyword(s):  
Optical Properties ◽  
Charge Transfer ◽  
Energy Levels ◽  
The Self ◽  
Phonon Interaction ◽  
Time Resolved ◽  
Compound A ◽  
One Dimensional ◽  
Self Trapping ◽  
Luminescence Time

The self-trapping by the nondiagonal particle-phonon interaction between two quasi-degenerate energy levels of exitonic subsystem, is studied. We propose this is realized in charge transfer exciton, where the directions of the poralization give the quasi-degeneracy, as in quasi-one-dimensional compound A-PMDA. We present a quantitative theory for the optical properties (light absorption and time-resolved luminescence) of the resonating states, which gives a consistent resolution for the long-standing puzzles in A-PMDA.

scholarly journals Photophysical properties and fluorosolvatochromism of D–π–A thiophene based derivatives

RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43459-43471
Author(s):  
Hussain A. Z. Sabek ◽  
Ahmed M. M. Alazaly ◽  
Dina Salah ◽  
Hesham S. Abdel-Samad ◽  
Mohamed A. Ismail ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Fluorescence Emission ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Solvation Models

Solvation-dependent photophysical properties of two push–pull thiophene-based compounds with donor–π–acceptor (D–π–A) structures were investigated using absorption, fluorescence emission and time resolved spectroscopy, and supported by different solvation models.

Sign in / Sign up

Export Citation Format

Share Document