Report
Magnetic field-modulated exciton generation in organic semiconductors: an intermolecular quantum correlation effect
| العنوان: | Magnetic field-modulated exciton generation in organic semiconductors: an intermolecular quantum correlation effect |
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| المؤلفون: | Ding, B. F., Yao, Y., Sun, X. Y., Sun, Z. Y., Gao, X. D., Xie, Z. T., Wang, Z. J., Ding, X. M., Wu, Y. Z., Jin, X. F., Wu, C. Q., Hou, X. Y. |
| سنة النشر: | 2009 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | 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. Comment: 16 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.82.205209 |
| URL الوصول: | http://arxiv.org/abs/0911.5025 |
| رقم الانضمام: | edsarx.0911.5025 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.82.205209 |
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