Fullerene Active Layers for n-Type Organic Electrochemical Transistors

被引：93

作者：

Bischak, Connor G. ^{[1
]}

Flagg, Lucas Q. ^{[1
]}

Yan, Kangrong ^{[2
]}

Li, Chang-Zhi ^{[2
]}

Ginger, David S. ^{[1
]}

机构：

[1] Univ Washington, Dept Chem, Seattle, WA 98195 USA

[2] Zhejiang Univ, MOE Key Lab Macromol Synth & Functionalizat, State Key Lab Silicon Mat, Dept Polymer Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2019年 / 11卷 / 31期

基金：

中国国家自然科学基金; 美国国家卫生研究院; 美国国家科学基金会;

关键词：

organic electrochemical transistor; fullerene; small-molecule semiconductor; bioelectronics; n-type semiconductor; POLYPYRROLE; POLYMER; FILMS; PERFORMANCE; EFFICIENCY; TRANSPORT; RISE; C-60;

D O I：

10.1021/acsami.9b11370

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Organic electrochemical transistors (OECTs) are currently being developed for applications ranging from bioelectronics to neuromorphic computing. We show that fullerene derivatives with glycolated side chains can serve as n-type active layers for OECTs with figures of merit exceeding the best reported conjugated-polymer-based n-type OECTs. By comparing two different fullerene derivatives, [6,6]-phenyl-C-61-butyric acid methyl ester (PCBM) and 2-(2,3,4-tris(methoxtriglycol) phenyl) [60]fulleropyrrolidine (C60-TEG), we find that the hydrophilic glycolated side chains in C60-TEG enable volumetric doping of C60-TEG films. In contrast, the hydrophobic nature of PCBM prevents ions from penetrating into the material. Our results demonstrate that small-molecule semiconductors follow many of the same design principles established for conjugated polymers and can function as high-performing mixed electronic/ionic conductors for efficient, fast OECTs.

引用

收藏

页码：28138 / 28144

页数：7

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