Highly efficient p-dopants in amorphous hosts

被引：36

作者：

Menke, Torben ^{[1
]}

Ray, Debdutta ^{[1
,2
]}

Kleemann, Hans ^{[1
]}

Hein, Moritz P. ^{[1
]}

Leo, Karl ^{[1
]}

Riede, Moritz ^{[1
,3
]}

机构：

[1] Tech Univ Dresden, Inst Angew Photophys, D-01062 Dresden, Germany

[2] Indian Inst Technol, Dept Elect Engn, Madras 600036, Tamil Nadu, India

[3] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

来源：

ORGANIC ELECTRONICS | 2014年 / 15卷 / 02期

关键词：

Molecular doping; Molecular p-dopant; Seebeck coefficient; Conductivity; Organic semiconductors; LIGHT-EMITTING-DIODES; ELECTRICAL-PROPERTIES; PHTHALOCYANINE; TRANSPORT; ACCEPTOR; CONDUCTIVITY; PERFORMANCE; ENERGY; FILMS;

D O I：

10.1016/j.orgel.2013.11.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the influence of the molecular energy levels on doped organic layers, using four different combinations of two amorphous hosts (MeO-TPD and BF-DPB) and two efficient p-dopants (F-6-TCNNQ and C60F36). Conductivity and Seebeck studies are performed in situ, varying the doping concentration over more than two orders of magnitude. Whereas trends of doping are in agreement with the hosts' energy levels, trends deviate from the expectation based on the dopants' energy levels. A lower limit for the mobility can be derived from conductivity data, which for samples of F6-TCNNQ increases with doping, even exceeding the measured OFET-mobility of intrinsic MeO-TPD. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：365 / 371

页数：7

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