Magnetic field-modulated exciton generation in organic semiconductors: an intermolecular quantum correlation effect
Materials Science
2015-05-14 v1 Mesoscale and Nanoscale Physics
Abstract
Magnetoelectroluminescence (MEL) of organic semiconductor has been experimentally tuned by adopting blended emitting layer consisting of both hole and electron transporting materials. A theoretical model considering intermolecular quantum correlation is proposed to demonstrate two fundamental issues: (1) two mechanisms, spin scattering and spin mixing, dominate the two different steps respectively in the process of the magnetic field modulated generation of exciton; (2) the hopping rate of carriers determines the intensity of MEL. Calculation successfully predicts the increase of singlet excitons in low field with little change of triplet exciton population.
Keywords
Cite
@article{arxiv.0911.5025,
title = {Magnetic field-modulated exciton generation in organic semiconductors: an intermolecular quantum correlation effect},
author = {B. F. Ding and Y. Yao and X. Y. Sun and Z. Y. Sun and X. D. Gao and Z. T. Xie and Z. J. Wang and X. M. Ding and Y. Z. Wu and X. F. Jin and C. Q. Wu and X. Y. Hou},
journal= {arXiv preprint arXiv:0911.5025},
year = {2015}
}
Comments
16 pages, 4 figures