TY - JOUR
T1 - Magnetic field modulated exciton generation in organic semiconductors
T2 - An intermolecular quantum correlated effect
AU - Ding, Baofu
AU - Yao, Yao
AU - Sun, Xiaoyu
AU - Gao, Xindong
AU - Xie, Zuoti
AU - Sun, Zhengyi
AU - Wang, Zijun
AU - Ding, Xunmin
AU - Wu, Yizheng
AU - Jin, Xiaofeng
AU - Choy, Wallace C.H.
AU - Wu, Chang Qin
AU - Hou, Xiaoyuan
PY - 2010/11/17
Y1 - 2010/11/17
N2 - Magnetoelectroluminescence (MEL) of organic semiconductor has been experimentally tuned by adopting blended emitting layer consisting of hole transporting material and electron transporting material. Theory based on Hubbard model fits experimental MEL well, which reveals two findings: (1) spin scattering and spin mixing, respectively, dominate MEL in low-field and high-field region. (2) Blended ratio, and thus the mobility, determines the value of the relative change in the EL in a given magnetic field. Finally successful prediction about the increase in singlet excitons in low field with little change in triplet exciton population further confirms the first finding.
AB - Magnetoelectroluminescence (MEL) of organic semiconductor has been experimentally tuned by adopting blended emitting layer consisting of hole transporting material and electron transporting material. Theory based on Hubbard model fits experimental MEL well, which reveals two findings: (1) spin scattering and spin mixing, respectively, dominate MEL in low-field and high-field region. (2) Blended ratio, and thus the mobility, determines the value of the relative change in the EL in a given magnetic field. Finally successful prediction about the increase in singlet excitons in low field with little change in triplet exciton population further confirms the first finding.
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U2 - 10.1103/PhysRevB.82.205209
DO - 10.1103/PhysRevB.82.205209
M3 - Article
AN - SCOPUS:78649732781
SN - 1098-0121
VL - 82
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 20
M1 - 205209
ER -