吡啶封端的二酮吡咯并吡咯的合成及其作为构建低带隙聚合物的构筑单元用于高效聚合物太阳能电池。
Synthesis of pyridine-capped diketopyrrolopyrrole and its use as a building block of low band-gap polymers for efficient polymer solar cells.
机构信息
Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, Korea.
出版信息
Chem Commun (Camb). 2013 Oct 4;49(76):8495-7. doi: 10.1039/c3cc44676j.
A new building block for low band-gap polymers, diketopyrrolopyrrole (DPP) flanked by pyridine (PyDPP), has been synthesized via a simple synthetic route. PyDPP was polymerized with bithiophene (BT) to afford a low band-gap copolymer (PBTPyDPP) which was used as an electron donor of the active layer in polymer solar cells. The solar cell device based on PBTPyDPP exhibited a promising PCE of 4.9% with a high VOC over 0.9 V, which is one of the highest values among DPP-based polymer solar cells.
一种新的低带隙聚合物构筑单元，即由吡啶（PyDPP）两侧环绕的二酮吡咯并吡咯（DPP），已通过一种简单的合成路线进行了合成。PyDPP 与并噻吩（BT）聚合，得到了一个低带隙共聚物（PBTPyDPP），该共聚物被用作聚合物太阳能电池活性层中的电子给体。基于 PBTPyDPP 的太阳能电池器件表现出了有前景的 4.9%的光电转换效率（PCE），开路电压（VOC）超过 0.9V，这是基于 DPP 的聚合物太阳能电池中最高值之一。
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