کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10609804 | 984733 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Conjugated polymer consisting of dibenzosilole and quinoxaline as donor materials for organic photovoltaics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The new D-A type polymers poly(dibenzosilole-diphenylquinoxaline) (PSiPDTQ) and dibenzosilole-dibenzophenazine) (PSiFDTQ), both of which adopted benzosilole as a donor, were polymerized through a Suzuki coupling reaction. PSiPDTQ and PSiFDTQ were able to be dissolved in organic solvents and exhibited high thermal stability. Due to the appropriate LUMO energy levels, an effective charge transport was observed in PSiPDTQ and PSiFDTQ. According to X-ray diffraction measurements, a single broad diffraction peak was detected at approximately 20.5°. The Ï-Ï stacking distances (dÏ) for PSiPDTQ and PSiFDTQ were 4.4 and 4.3 Ã
, respectively. When PSiPDTQ and PC71BM were blended in a 1:3 ratio and used as the active layer in a solar cell, the resulting Voc, Jsc, FF and PCE were 0.89Â V, 5.1Â mA/cm2, 30.2% and 1.4%, respectively. For solar cells using a 1:6 ratio of PSiFDTQ to PC71BM, the resulting Voc, Jsc, FF and PCE were 0.98Â V, 3Â mA/cm2, 52.8% and 1.6%, respectively. In addition, for a PSiPDTQ and PC71BM blended film (1:3 ratio) with an additional layer of PFN, the PCE of the resulting solar cells was improved (relative to solar cells without PFN) to 2.1% due to the interfacial adhesion of PFN.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Polymer Journal - Volume 49, Issue 10, October 2013, Pages 3261-3270
Journal: European Polymer Journal - Volume 49, Issue 10, October 2013, Pages 3261-3270
نویسندگان
Ho Jun Song, Joo Young Lee, Eui Jin Lee, Doo Kyung Moon,