Abstract

Herein, a novel conducting polymer poly(2,5-bis(5-(2,3-dihydrothieno[3,4-b][1, 4]dioxin-5-yl)-3-dodecylthiophen-2-yl)thieno[3,2-b]thiophene) has been developed and synthesized via in situ oxidative polymerization using FeCl₃ as the oxidant. This polymer can be proton doped, and the doping process is reversible. The proton-doped film exhibits p-type conduction, with a Seebeck coefficient of ca. 24 µV/K, and an electrical conductivity of ca. 30 S·cm⁻¹ with a carrier density of 2 × 10²⁰ cm⁻³ has been achieved. This work introduces a new approach for designing proton-dopable organic semiconductors: exchanging and modifying the chemical structure to enable precise tuning of the semiconductor’s properties.

摘要

在此，一种新型导电聚合物聚(2,5-双(5-(2,3-二氢噻吩并[3,4-b][1, 4]二恶英-5-基)-3-十二烷基噻吩-2-基)噻吩并[3,2-b]噻吩)是通过原位氧化聚合以FeCl ₃为氧化剂开发合成的。这种聚合物可以被质子掺杂，掺杂过程是可逆的。质子掺杂薄膜表现出p型传导，塞贝克系数约为 10。24 µV/K，电导率为 ca。实现了载流子密度为2×10 ²⁰  cm ^-3的30 S·cm ^{-1 。}这项工作介绍了一种设计质子掺杂有机半导体的新方法：交换和修改化学结构以实现对半导体特性的精确调整。