Ambipolar all-polymer bulk heterojunction field-effect transistors

被引:74
作者
Szendrei, Krisztina [2 ]
Jarzab, Dorota [2 ]
Chen, Zhihua [1 ]
Facchetti, Antonio [1 ]
Loi, Maria A. [2 ]
机构
[1] Polyera Corp, Skokie, IL 60077 USA
[2] Univ Groningen, Zernike Inst Adv Mat, NL-9700 AE Groningen, Netherlands
关键词
THIN-FILM-TRANSISTOR; HIGH-MOBILITY; CHARGE-TRANSPORT; ELECTRON; BLENDS; PENTACENE; METAL;
D O I
10.1039/b919596c
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We demonstrate solution processable all-polymer based field-effect transistors (FETs) exhibiting comparable electron and hole mobilities. The semiconducting layer is a bulk heterojunction of poly{[N,N'-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5'-(2,2'-bithiophene)} (n-type polymer) and regioregular poly(3-hexylthiophene) (p-type polymer). These polymers form a type-II heterojunction as revealed by the faster photoluminescence dynamics of the blend compared to the pristine materials. An electron mobiliy of 4 x 10(-3) cm(2)/V s and a hole mobility of 2 x 10(-3) cm(2)/V s were extracted from the transfer characteristics of bottom contact FETs. The balanced mobilities suggest that the active layer is a fine network of the two components, as confirmed by atomic force microscopy phase images.
引用
收藏
页码:1317 / 1321
页数:5
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