Conjugated Polyelectrolyte/Graphene Hetero-Bilayer Nanocomposites Exhibit Temperature Switchable Type of Conductivity

被引:14
作者
Brus, Viktor V. [1 ]
Gluba, Marc A. [1 ]
Mai, Cheng-Kang [2 ]
Fronk, Stephanie L. [2 ]
Rappich, Joerg [1 ]
Nickel, Norbert H. [1 ]
Bazan, Guillermo C. [2 ]
机构
[1] Helmholtz Zentrum Berlin Mat & Energie GmbH, Inst Silizium Photovolta, D-12489 Berlin, Germany
[2] Univ Calif Santa Barbara, Ctr Polymers & Organ Solids, Dept Chem & Biochem, Santa Barbara, CA 93106 USA
基金
美国国家科学基金会;
关键词
RAMAN-SPECTROSCOPY; HIGH-EFFICIENCY; WORK FUNCTION; DIRAC POINT; GRAPHENE; FUNCTIONALIZATION; METAL;
D O I
10.1002/aelm.201600515
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The majority of charge carriers in conjugated polyelectrolyte (CPE)-PyrBIm(4)/graphene hetero-bilayers can be dynamically changed from electrons to holes, and vice versa, within a temperature range of 60 degrees C. Doping mechanisms under consideration include charge transfer from structural units in the CPE-PyrBIm(4) backbone and/or field-effect doping from adjacent ionic functionalities. A new concept of the graphene/CPE/Au thermobarristor is proposed and practically realized.
引用
收藏
页数:7
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