کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1268052 | 1496842 | 2009 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of spin polarization on exciton formation in conjugated polymers
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of spin polarization on exciton formation in conjugated polymers Effect of spin polarization on exciton formation in conjugated polymers](/preview/png/1268052.png)
چکیده انگلیسی
Motivated by recent experimental researches in spin polymer light emitting diodes, we investigate spin-related exciton formation from recombination of spin polarons. The simulations are performed based on an extended version of the one-dimensional Su–Schrieffer–Heeger model combined with the Hubbard model. It is found that when the electron–electron interactions are neglected, the yield of singlet excitons is dependent upon cosine of the spin polarization angle of two polarons. However, in the presence of on-site electron–electron interactions, the formation of singlet excitons will be significantly depressed, which is due to the broken of spin degeneracy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Electronics - Volume 10, Issue 8, December 2009, Pages 1489–1494
Journal: Organic Electronics - Volume 10, Issue 8, December 2009, Pages 1489–1494
نویسندگان
Jie Lei, Zhen Sun, Yubin Zhang, Shijie Xie,