Electrical modelling and design of ultra-fast micro-OLED with coplanar wave-guided electrodes in ON-OFF regime

被引：19

作者：

Chime, A. C. ^{[1
,4
]}

Bensmida, S. ^{[3
]}

Chakaroun, M. ^{[1
]}

Lee, M. W. ^{[1
]}

Nkwawo, H. ^{[1
]}

Fischer, A. P. A. ^{[1
,2
]}

机构：

[1] Univ Paris 13, Sorbonne Paris Cite, CNRS, Lab Phys Lasers,UMR 7538, F-93430 Villetaneuse, France

[2] Univ Sorbonne Paris Cite, Cent Proximite Nanotechnol Paris Nord, F-93430 Villetaneuse, France

[3] Univ Bristol, Merchant Venturers Sch Engn, Commun Syst & Networks Grp, MVB Bld,Woodland Rd, Bristol BS8 1UB, Avon, England

[4] Univ Dschang, Inst Univ Technol FOTSO Victor, Dschang, Cameroon

来源：

ORGANIC ELECTRONICS | 2018年 / 56卷

关键词：

OLED; Ultra-fast OLED; OLED electrical equivalent model; Highspeed OLED; Feeder line electrodes; Coplanar waveguide electrodes; LIGHT-EMITTING-DIODES; AMPLIFIED SPONTANEOUS EMISSION; HIGH-CURRENT DENSITY; PULSE EXCITATION; DEVICE; LASERS; INJECTION;

D O I：

10.1016/j.orgel.2017.12.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work proposes a new electrical model and design of ultra-fast mu-OLED devices under ON-OFF electrical pulse regime. The new model is an equivalent electrical model capable of accounting for large amplitude excitation as well as ultra-short pulse response. Moreover, coplanar wave-guided electrodes are proposed, for the first time, to maximize pulse energy delivery to the organic hetero-structure and to minimize the mu-OLED time response. An analytical expression of the time response is derived from the model which reveals the design key parameters. Moreover, preliminary experimental results presented in this work demonstrate state-of-the-art OLED current density of 2 kA/cm(2) and better than state-of-the-art optical pulse duration as short as 10 ns in the range of the radiative lifetime of singlet excitons.

引用

页码：284 / 290

页数：7

共 19 条

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