Poly(ethylene imine) Impurities Induce n-doping Reaction in Organic (Semi)Conductors

被引：106

作者：

Fabiano, Simone ^{[1
]}

Braun, Slawomir ^{[2
]}

Liu, Xianjie ^{[2
]}

Weverberghs, Eric ^{[3
]}

Gerbaux, Pascal ^{[3
]}

Fahlman, Mats ^{[2
]}

Berggren, Magnus ^{[1
]}

Crispin, Xavier ^{[1
]}

机构：

[1] Linkoping Univ, Dept Sci & Technol, Lab Organ Elect, SE-60174 Norrkoping, Sweden

[2] Linkoping Univ, Dept Phys Chem & Biol, SE-58183 Linkoping, Sweden

[3] Univ Mons UMONS, Organ Synth & Mass Spectrometry Lab, B-7000 Mons, Belgium

来源：

ADVANCED MATERIALS | 2014年 / 26卷 / 34期

关键词：

FIELD-EFFECT TRANSISTORS; CHARGE INJECTION; POLYMER; INTERFACE; CONDUCTIVITY; STABILITY; CHEMISTRY; TRANSPORT;

D O I：

10.1002/adma.201401986

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Volatile impurities contained in polyethyleneimine (PEI), and identified as ethyleneimine dimers and trimers, are reported. These N-based molecules show a strong reducing character, as demonstrated by the change in electrical conductivity of organic (semi) conductors exposed to the PEI vapor. The results prove that electron transfer rather than a dipole effect at the electrode interface is the origin of the work-function modification by the PEI-based layers.

引用

页码：6000 / +

页数：8

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