Temperature dependent charge transport in organic field-effect transistors with the variation of both carrier concentration and electric field

被引：20

作者：

Abbas, Mamatimin ^{[1
,2
]}

Pivrikas, Almantas ^{[1
,3
]}

Arici, Elif ^{[1
,6
]}

Tekin, Nalan ^{[4
]}

Ullah, Mujeeb ^{[5
]}

Sitter, Helmut ^{[5
]}

Sariciftci, Niyazi Serdar ^{[1
]}

机构：

[1] Johannes Kepler Univ Linz, Linz Inst Organ Solar Cells, A-4040 Linz, Austria

[2] Univ Bordeaux 1, UMR CNRS 5218, Lab IMS, ENSCBP, F-33607 Pessac, France

[3] Univ Queensland, Sch Chem & Mol Biosci, COPE, Brisbane, Qld 4072, Australia

[4] Kocaeli Univ, Fac Arts & Sci, Dept Chem, TR-41380 Kocaeli, Turkey

[5] Johannes Kepler Univ Linz, Inst Semicond Phys, A-4040 Linz, Austria

[6] Istanbul Tech Univ, Energy Inst, TR-34469 Istanbul, Turkey

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2013年 / 46卷 / 49期

基金：

奥地利科学基金会;

关键词：

MONTE-CARLO-SIMULATION;

D O I：

10.1088/0022-3727/46/49/495105

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present experimental evidence of combined effects of temperature, carrier concentration, electric field as well as disorder on charge transport in an organic field-effect transistor (OFET). Transfer characteristics of an OFET based on sexithiophene active layer were measured from 80 to 300 K. Thermally activated carrier mobility followed Arrhenius law with two activation energies. Carrier density variation led to finite extrapolated Meyer-Neldel (MN) temperature (780 K) at low fields. Negative electric field-dependent mobility was observed in available field range. MN temperature shifted towards higher temperature when the electric field increased, and did not retain its finite character above the field of 4 x 10(3) Vcm(-1).

引用

页数：6

共 19 条

[1] Balanced charge carrier mobilities in bulk heterojunction organic solar cells [J].