Transport properties of copper phthalocyanine based organic electronic devices

被引：25

作者：

Schuster, C. ^{[1
]}

Kraus, M. ^{[1
]}

Opitz, A. ^{[1
]}

Bruetting, W. ^{[1
]}

Eckern, U. ^{[1
]}

机构：

[1] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

来源：

EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS | 2010年 / 180卷

关键词：

FIELD-EFFECT TRANSISTOR; THIN-FILM TRANSISTORS; CRYSTAL-STRUCTURE; CUPC; SIMULATION; 1ST-PRINCIPLES; SPECTROSCOPY;

D O I：

10.1140/epjst/e2010-01214-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ambipolar charge carrier transport in Copper phthalocyanine (CuPc) is studied experimentally in field-effect transistors and metal-insulator-semiconductor diodes at various temperatures. The electronic structure and the transport properties of CuPc attached to leads are calculated using density functional theory and scattering theory at the non-equilibrium Green's function level. We discuss, in particular, the electronic structure of CuPc molecules attached to gold chains in different geometries to mimic the different experimental setups. The combined experimental and theoretical analysis explains the dependence of the mobility and the transmission coefficient on the charge carrier type (electrons or holes) and on the contact geometry. We demonstrate the correspondence between our experimental results on thick films and our theoretical studies of single molecule contacts. Preliminary results for fluorinated CuPc are discussed.

引用

页码：117 / 134

页数：18

共 51 条

[1] Control of threshold voltage in pentacene thin-film transistors using carrier doping at the charge-transfer interface with organic acceptors [J].