Acetylene-bridged D-A-D type small molecule comprising pyrene and diketopyrrolopyrrole for high efficiency organic solar cells
Acetylene-bridged D-A-D type small molecule comprising pyrene and diketopyrrolopyrrole for high efficiency organic solar cells
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DOI：
10.1016/j.orgel.2013.05.035
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发表时间：
2013-09
影响因子：
3.2
通讯作者：
Jeong-Wook Mun;Illhun Cho;Donggu Lee;W. Yoon;Oh Kyu Kwon;Changhee Lee;Soo Young Park
中科院分区：
文献类型：
--
作者：
Jeong-Wook Mun;Illhun Cho;Donggu Lee;W. Yoon;Oh Kyu Kwon;Changhee Lee;Soo Young Park
为了探索乙炔掺入的影响，以芘为供体，二酮基吡咯并吡咯为受体，成功合成了乙炔桥联的D-A-D型小分子（（HD/OD）-DPP-A-PY），并对其结构进行了表征。(HD/OD）-DPP-A-PY显示出平面骨架、共轭延伸、增强的光吸收和低HOMO能级。结合先进的性能，基于HD-DPP-A-PY作为供体和[6，6]-苯基-C71-丁酸甲酯（PC 70 BM）作为受体的共混物的溶液处理的OSC表现出高达3.15%的PCE。
To explore effects of acetylene-incorporation, acetylene-bridged D–A–D type small molecules ((HD/OD)-DPP-A-PY) using pyrene as a donor and diketopyrrolopyrrole as an acceptor were successfully synthesized and characterized. (HD/OD)-DPP-A-PY exhibited planar back-bone, conjugation extension, enhanced light absorption, and low HOMO energy level. Combined with the advanced properties, solution-processed OSCs based on a blend of HD-DPP-A-PY as a donor and [6,6]-phenyl-C71-butyric-acid-methyl-ester (PC70BM) as an acceptor exhibited PCEs as high as 3.15%.