具有高迁移率的噻吩亚乙烯基和二酮吡咯并吡咯共聚物的合成及光伏性能
Synthesis and Photovoltaic Properties of a Thienylenevinylene and Diketopyrrolopyrrole Copolymer with High Mobility.
作者信息
Lim Bogyu, Yeo Jun-Seok, Khim Dongyoon, Kim Dong-Yu
机构信息
Heeger Center for Advanced Materials (HCAM), School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), 1 Oryong-Dong, Buk-Gu, Gwangju 500-712, Republic of Korea.
Department of Material Science and Engineering, Center for Advanced Molecular Photovoltaics (CAMP), Stanford University, Stanford, CA 94305, USA.
出版信息
Macromol Rapid Commun. 2011 Oct 4;32(19):1551-6. doi: 10.1002/marc.201100327. Epub 2011 Jul 22.
A novel donor-acceptor-type polymer with a low band-gap that alternates electron-rich thienylenevinylene groups with electron-deficient diketopyrrolopyrrole (DPP) units (PETVTDPP) has been synthesized by Pd-catalyzed Stille cross-coupling polymerization. The polymer shows a broad absorption band of wavelengths that range from 330 to 900 nm, and a low band-gap value of 1.43 eV. The field-effect mobility of an organic thin-film transistor based on this polymer is 0.05 cm(2 ) · Vs(-1) . Bulk-heterojunction solar cells using a mixture of PETVTDPP and PC[71] BM for the active layer show a power conversion efficiency (PCE) of 1.94% under simulated AM 1.5 G solar irradiation at 100 mW · cm(-2) .
通过钯催化的Stille交叉偶联聚合反应，合成了一种新型的供体-受体型聚合物，其具有低带隙，由富电子的噻吩亚乙烯基基团与缺电子的二酮吡咯并吡咯（DPP）单元交替组成（PETVTDPP）。该聚合物显示出波长范围为330至900nm的宽吸收带，带隙值低至1.43eV。基于这种聚合物的有机薄膜晶体管的场效应迁移率为0.05cm²·V⁻¹·s⁻¹。以PETVTDPP和PC[71]BM的混合物作为活性层的体异质结太阳能电池，在模拟AM 1.5G太阳辐射、100mW·cm⁻²条件下，功率转换效率（PCE）为1.94%。
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