Control of molecular doping in conjugated polymers by thermal annealing

被引：22

作者：

Fujimoto, Ryo ^{[1
]}

Watanabe, Shun ^{[1
,2
]}

Yamashita, Yu ^{[1
]}

Tsurumi, Junto ^{[1
]}

Matsui, Hiroyuki ^{[1
,3
]}

Kushida, Tomokatsu ^{[1
]}

Mitsui, Chikahiko ^{[1
]}

Yi, Hee Taek ^{[4
]}

Podzorov, Vitaly ^{[4
,5
]}

Takeya, Jun ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Frontier Sci, Dept Adv Mat Sci, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778561, Japan

[2] JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan

[3] Yamagata Univ, Grad Sch Organ Mat Sci, Res Ctr Organ Elect ROEL, 4-3-16 Jonan, Yonezawa, Yamagata 9928510, Japan

[4] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

[5] Rutgers State Univ, Inst Adv Mat Devices & Nanotechnol IAMDN, Piscataway, NJ 08854 USA

来源：

ORGANIC ELECTRONICS | 2017年 / 47卷

基金：

日本学术振兴会; 日本科学技术振兴机构;

关键词：

Organic semiconductors; Doping; Hall effect; CONDUCTING POLYMERS; HOPPING TRANSPORT; CHARGE-TRANSPORT; HIGH-MOBILITY; TRANSITION; SOLITONS; STATE;

D O I：

10.1016/j.orgel.2017.05.019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Doping is one of the most fundamental building blocks for semiconductor processing, and enables adaptation to both charge concentration and electrical conductivity. Despite attempts to investigate various doping and de-doping methods for organic semiconductors over many years, their use has been limited to date. Here, we present a method to precisely control the degree of doping in dopant-implanted thiophene-based polymeric conductors. A simple post annealing at a relatively low temperature of approximately 110 degrees C can significantly diminish the charge carrier concentration with precision, where the controllability is evaluated comprehensively using electron spin resonance and optical absorption techniques. At higher doping regimes, a band-like charge transport with an ideal Hall effect and weak localization is confirmed. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：139 / 146

页数：8

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