کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5372672 1504180 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Separation of geminate electron-hole pairs at donor-acceptor interfaces in the approximation of prescribed diffusion
ترجمه فارسی عنوان
جداسازی جفت الکترونی سوراخهای دیمینات در رابطهای اهدا کننده-گیرنده در تقریب انتشار تجویز شده
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی


- Motion of an electron and hole at a D-A interface is considered in the diffusion model.
- Smoluchowski equation is solved in the prescribed diffusion approximation.
- Time-dependent survival probability of the electron-hole pair is found.
- Separation probability is obtained as a function of the initial intrapair separation.

It is generally believed that electrons and holes in organic solar cells are generated by dissociation of excitons at the interface between donor and acceptor materials in the form of geminate, coulombically bound electron-hole pairs. The further motions of electrons and holes are restricted to the acceptor material and donor material, respectively. Using the method of prescribed diffusion, we solve the Smoluchowski equation describing evolution of the spatial distribution of electrons and holes. The separation probability of electron-hole pairs is found as a function of an initial intrapair separation and external electric field.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 491, 10 July 2017, Pages 102-111
نویسندگان
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