Donor unit effect on DPP based organic field-effect transistor performance

被引：14

作者：

Takaya, Tomotsugu ^{[1
]}

Mamo, Melaku Dereje ^{[2
]}

Karakawa, Makoto ^{[1
,3
]}

Noh, Yong-Young ^{[2
]}

机构：

[1] Kanazawa Univ, Grad Sch Nat Sci & Technol, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan

[2] Dongguk Univ, Dept Energy & Mat Engn, 30 Pildong Ro,1 Gil, Seoul 04620, South Korea

[3] Kanazawa Univ, Inst Frontier Sci Initiat, Kanazawa, Ishikawa 9201192, Japan

来源：

DYES AND PIGMENTS | 2018年 / 158卷

关键词：

Organic field-effect transistors; Diketopyrrolopyrrole; Conjugated polymers; Donor units; Charge transport; THIN-FILM TRANSISTORS; RANDOM COPOLYMERS; GATE DIELECTRICS; HIGH HOLE; POLYMER; MOBILITY; ELECTRONICS;

D O I：

10.1016/j.dyepig.2018.05.062

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

We report diketopyrrolopyrrole (DPP) based copolymers, poly (diketopyrrolopyrrole-cyclopentadithiophene) (PDPPTT-CPDT) and poly(diketopyrrolopyrrolebenzo[1,2-b:4,5-b']dithiophene) (PDPPTT-BDT) to investigate donor unit structure effects on organic field-effect transistor (OFET) performance. The highest occupied molecular orbital (HOMO) level and copolymer band gap were tuned by introducing different donor units on the acceptor DPP backbone. PDPPTT-BDT OFETs show 10 fold higher hole field-effect mobility, up to 0.08 cm(2) V-1 s(-1), than PDPPTT-CPDT OFETs due to better crystallinity and higher HOMO energetic levels. PDPPTT-CPDT and PDPPTT-BDT were operationally stable with negligible threshold voltage shift after cycling.

引用

页码：306 / 311

页数：6

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