کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
175287 458907 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and properties of a novel narrow band gap oligomeric diketopyrrolopyrrole-based organic semiconductor
ترجمه فارسی عنوان
سنتز و خواص یک باند جدید باند باریک نیمه هادی آلی متصل به دیکتوپیرلولپیرلل
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• A new trimer of diketopyrrolopyrole (DPP), Tri-BTDPP, is synthesized.
• Tri-BTDPP has favorable optoelectronic properties for organic photovoltaics (OPV).
• Blend films of Tri-BTDPP and PCBM are studied and evaluated in OPV.

A trimer of diketopyrrolopyrole (DPP), Tri-BTDPP, was synthesized and characterized. Tri-BTDPP has a HOMO level of −5.34 eV, a low band gap of 1.33 eV, and a hole mobility of ∼10−3 cm2 V−1 s−1 in organic field effect transistors (OFETs). Organic photovoltaic (OPV) devices using the donor/acceptor blends of Tri-BTDPP and PC71BM exhibited low power conversion efficiencies (PCE) of up to 0.72%, even though the desirable optical and electronic characteristics of this compound as a donor semiconductor for achieving high performance for OPV. Through an intensive study of the active layer using AFM, XRD, and DSC, it was found that Tri-BTDPP and PC71BM were unable to intermix and formed oversized Tri-BTDPP phases, resulting in poor charge separation. Some guidance on how to improve the OPV performance of Tri-DPP compounds is provided.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 131, August 2016, Pages 160–167
نویسندگان
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