Novel Random Low‐Band‐Gap Fluorene‐Based Copolymers for Deep Red/Near Infrared Light‐Emitting Diodes and Bulk Heterojunction Photovoltaic Cells
Novel Random Low‐Band‐Gap Fluorene‐Based Copolymers for Deep Red/Near Infrared Light‐Emitting Diodes and Bulk Heterojunction Photovoltaic Cells
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DOI：
10.1002/macp.200500517
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发表时间：
2006-03
影响因子：
2.5
通讯作者：
Yangjun Xia;Jie Luo;Xianyu Deng;Xianzhen Li;Dongyun Li;Xu-hui Zhu;Wei Yang;Yong Cao
中科院分区：
文献类型：
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作者：
Yangjun Xia;Jie Luo;Xianyu Deng;Xianzhen Li;Dongyun Li;Xu-hui Zhu;Wei Yang;Yong Cao
以9，9-二辛基芴（DOF）和2，3-二甲基-5，7-二噻吩-2-基噻吩并[3，4-B]吡嗪（DTTP）为原料，合成了一种新型的可溶性无规低带隙共轭共聚物（PFO-DTTP，E g = 1.77-2.00 eV）。共聚物的溶液和固体薄膜在300-690 nm范围内吸收光。在AM1.5太阳模拟器（100 mW · cm-2）下，由PFO DTTP 30和[6，6]-苯基C61丁酸甲酯（PCBM）组成的固态复合膜制备的原型光伏电池的能量转换效率高达0.83%。对于电致发光器件，发射峰在734-780 nm附近。这表明低带隙共聚物是聚合物太阳能电池和深红色/近红外发光二极管的有希望的材料。
Novel readily soluble random low-band-gap conjugated copolymers (PFO-DTTP, E g ≈ 1.77-2.00 eV) derived from 9,9-dioctylfluorene (DOF) and 2,3-dimethyl-5,7-dithien-2-yl-thieno[3,4-b]pyrazine (DTTP) were prepared. The solutions and the solid thin films of the copolymers absorbed light from 300-690 nm. Prototype photovoltaic cells from solid state composite films with the copolymer PFO-DTTP30 and [6,6]-phenyl C 61 butyric acid methyl ester (PCBM) showed power conversion efficiencies up to 0.83% under an AM 1.5 solar simulator (100 mW · cm -2 ). For electroluminescent devices, the emission peaks were around 734-780 nm. This indicates that the low band gap copolymers are promising materials for polymeric solar cells and deep red/near infrared light-emitting diodes.