Analysis of charge transport in high-mobility diketopyrrolopyrole polymers by space charge limited current and time of flight methods

被引：19

作者：

Cheon, Kwang Hee ^{[1
]}

Cho, Jangwhan ^{[1
]}

Lim, Byung Tack ^{[1
]}

Yun, Hui-Jun ^{[2
,3
]}

Kwon, Soon-Ki ^{[2
,3
]}

Kim, Yun-Hi ^{[4
]}

Chung, Dae Sung ^{[1
]}

机构：

[1] Chung Ang Univ, Sch Chem Engn & Mat Sci, Seoul 156756, South Korea

[2] Gyeongsang Natl Univ, Sch Mat Sci & Engn, Jinju 660701, South Korea

[3] Gyeongsang Natl Univ, REGET, Jinju 660701, South Korea

[4] Gyeongsang Natl Univ, Dept Chem & RINS, Jinju 660701, South Korea

来源：

RSC ADVANCES | 2014年 / 4卷 / 67期

基金：

新加坡国家研究基金会;

关键词：

HOLE MOBILITY; FIELD; DEPENDENCE;

D O I：

10.1039/c4ra04783d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The hole mobility of the widely studied diketopyrrolopyrole-based polymers (PDPPDTSE) was examined using space charge limited current (SCLC) and time of flight (TOF) methods. The mobility of the hole-only device based on PDPPDTSE was found to be dependent upon the e-field over the range of 10(-3) to 10(-2) cm(2) V(-1)s(-1) with nearly identical Poole-Frenkel coefficients. In addition, we found that the mobility strongly depended on the thickness of the PDPPDTSE. By analyzing the temperature dependence of transport characteristics, we argued that the charge transport in this polymer was greatly influenced by trap distribution at the electrode/semiconductor interface.

引用

页码：35344 / 35347

页数：4

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