Nonlinear Exciton Relaxation in Ladder-Type Poly (Para-Phenylene)
- 21 May 2007
- journal article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 467 (1) , 47-57
- https://doi.org/10.1080/15421400701220890
Abstract
Nonlinear exciton relaxation processes, exciton-exciton annihilation, and amplified spontaneous emission were investigated in thin films of ladder-type poly-(para-phenylene) under excitation by femtosecond light pulses. Both processes become apparent at similar excitation intensities, however their properties are very different. They cause different exciton relaxation kinetics and their intensity dependences are different.Keywords
This publication has 5 references indexed in Scilit:
- Ultrafast light-emission processes in poly(para-phenylene)-type ladder polymer filmsPhysical Review B, 1999
- Nonlinear emission and recombination in conjugated polymer waveguidesJournal of Applied Physics, 1999
- Excited-state dynamics of poly(para-phenylene)-type ladder polymers at high photoexcitation densityPhysical Review B, 1998
- One-dimensional triplet energy migration in columnar liquid crystals of octasubstituted phthalocyaninesThe Journal of Physical Chemistry, 1991
- Annihilation of singlet excitons in J aggregates of pseudoisocyanine (PIC) studied by pico- and subpicosecond spectroscopyThe Journal of Chemical Physics, 1988