Simulating electronic and optical processes in multilayer organic light-emitting devices

被引:125
作者
Ruhstaller, B
Beierlein, T
Riel, H
Karg, S
Scott, JC
Riess, W
机构
[1] IBM Corp, Zurich Res Lab, CH-8803 Ruschlikon, Switzerland
[2] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA
关键词
electrical and optical simulation; optimization organic light-emitting devices (OLEDs); TRANSIENT ELECTROLUMINESCENCE; TRANSPORT; INJECTION;
D O I
10.1109/JSTQE.2003.818852
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
A detailed investigation of the device operation of a blue-emitting multilayer organic light-emitting device (OLED) using an electronic device model is presented. In particular, a transient electroluminescence overshoot at turn-on is found to originate from charge and recombination confinement effects at internal interfaces. The location of the emission zone is obtained from the electronic model and its experimental determination exemplified by a sensing layer method. Moreover, the optimization of emission intensity and color is discussed for a red-emitting OLED. The thin-film interference effects are analyzed with help of an optical device model.
引用
收藏
页码:723 / 731
页数:9
相关论文
共 25 条
[1]  
Bach U, 2000, ADV MATER, V12, P1060, DOI 10.1002/1521-4095(200007)12:14<1060::AID-ADMA1060>3.0.CO
[2]  
2-R
[3]   Electron mobility in tris(8-hydroxy-quinoline)aluminum thin films determined via transient electroluminescence from single- and multilayer organic light-emitting diodes [J].
Barth, S ;
Müller, P ;
Riel, H ;
Seidler, PF ;
Riess, W ;
Vestweber, H ;
Bässler, H .
JOURNAL OF APPLIED PHYSICS, 2001, 89 (07) :3711-3719
[4]   Investigation of internal processes in organic light-emitting devices using thin sensing layers [J].
Beierlein, TA ;
Ruhstaller, B ;
Gundlach, DJ ;
Riel, H ;
Karg, S ;
Rost, C ;
Riess, W .
SYNTHETIC METALS, 2003, 138 (1-2) :213-221
[5]   Combinatorial device fabrication and optimization of multilayer organic LEDs [J].
Beierlein, TA ;
Ott, HP ;
Hofmann, H ;
Riel, H ;
Ruhstaller, B ;
Crone, B ;
Karg, S ;
Riess, W .
ORGANIC LIGHT-EMITTING MATERIALS AND DEVICES V, 2002, 4464 :178-186
[6]   LIFETIME OF AN EMITTING MOLECULE NEAR A PARTIALLY REFLECTING SURFACE [J].
CHANCE, RR ;
PROCK, A ;
SILBEY, R .
JOURNAL OF CHEMICAL PHYSICS, 1974, 60 (07) :2744-2748
[7]   Transient electroluminescence from rubrene light-emitting diodes using double voltage pulse [J].
Chowdhury, A ;
Pal, AJ .
SYNTHETIC METALS, 1999, 106 (02) :85-88
[8]   RADIATION FROM OSCILLATING DIPOLES EMBEDDED IN A LAYERED SYSTEM [J].
CRAWFORD, OH .
JOURNAL OF CHEMICAL PHYSICS, 1988, 89 (10) :6017-6027
[9]   Transient electroluminescence under double voltage pulse: Charge accumulation in light-emitting devices based on alizarin violet [J].
Das, S ;
Pal, AJ .
APPLIED PHYSICS LETTERS, 2000, 76 (13) :1770-1772
[10]   *ZWISCHENMOLEKULARE ENERGIEWANDERUNG UND FLUORESZENZ [J].
FORSTER, T .
ANNALEN DER PHYSIK, 1948, 2 (1-2) :55-75