A high-performance ambipolar organic field-effect transistor based on a bidirectional π-extended diketopyrrolopyrrole under ambient conditions

被引：11
作者：
Bai, Jinfeng [1 ]
Liu, Yucun [1 ]
Oh, Sangyoon [2 ,3 ]
Lei, Wenwei [1 ]
Yin, Bingzhu [1 ]
Park, Sooyoung [2 ,3 ]
Kan, Yuhe [4 ]
机构：
[1] Yanbian Univ, Key Lab Nat Resources Changbai Mt & Funct Mol, Minist Educ, Yanji 133002, Jilin, Peoples R China
[2] Seoul Natl Univ, CSOM, Seoul 151, South Korea
[3] Seoul Natl Univ, Mat Sci & Engn, Seoul 151, South Korea
[4] Huaiyin Normal Univ, Jiangsu Prov Key Lab Chem Low Dimens Mat, Sch Chem & Chem Engn, Huaian, Peoples R China
来源：
RSC ADVANCES | 2015年 / 5卷 / 66期
基金：
中国国家自然科学基金;
关键词：
THIN-FILM TRANSISTORS; LIGHT-EMITTING TRANSISTORS; CM(2) V-1 S(-1); SOLAR-CELLS; ELECTRON MOBILITIES; BANDGAP POLYMER; TANDEM POLYMER; SMALL-MOLECULE; BALANCED HOLE; SEMICONDUCTORS;
D O I：
10.1039/c5ra08418k
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A novel bidirectional p-extended 2,5-dihydro-1,4-dioxo-3,6-di-2-thienyl-1,4-diketopyrrolo[3,4-c]pyrrole derivative (DPP-2T) with the 4-(2,2-dicyanovinyl)phenyl group, (DPP-2T2P-2DCV), has been synthesized and characterized in order to achieve a high-performance organic semiconductor. The HOMO/LUMO energies of DPP-2T2P-2DCV were estimated to be -5.36 and -3.81 eV, respectively, based on their redox potentials, which were very similar to the other bidirectional p-extended DPP-2T analogue DPP-4T-2DCV. The calculated HOMO/LUMO values (HOMO: -5.43 eV, LUMO: -3.56 eV) based on the optimized geometry agreed well with the experimental values. DPP-2T2P-2DCV exhibits ambipolar TFT response with reasonably balanced electron and hole mobilities of 0.168 cm(2) V-1 s(-1) and 0.015 cm(2) V-1 s(-1) by solution process, respectively, which is the best result for solution processable DPP-based ambipolar small molecule semiconductors measured under ambient atmosphere.
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页码：53412 / 53418
页数：7
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