Open AccessTHE POLARIZABILITY OF EXCITON AND BIEXCITON IN POLYMER(ANALYTICAL CALCULATION)
Author(s) -
Ke Chen,
Zhao Er-Hai,
Sun X,
Ruigang Fu
Publication year - 2000
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.49.1778
Subject(s) - polarizability , biexciton , exciton , polarization (electrochemistry) , excitation , materials science , condensed matter physics , polymer , electric field , physics , molecular physics , quantum mechanics , chemistry , composite material , molecule
Since the electroluminescence in polymer comes from the transportation and combination of carriers in the electric field,it is essential to study the polarization property of the excitation in polymer.First we obtain the analytic solutions of exciton and biexciton,then their polarizabilities are calculated using the Green function method.An important result is that we analytically proved that the polarizability of the exciton is positive and that of the biexciton is negative.It follows that the polarization will be reversed when the exciton becomes biexciton.