Electron injection into an Alq3 single-layer organic light-emitting diode

被引:15
作者
Barth, S
Müller, P
Riel, H
Seidler, PF
Riess, W
Vestweber, H
Wolf, U
Bässler, H
机构
[1] IBM, Div Res, Zurich Res Lab, CH-8803 Ruschlikon, Switzerland
[2] European Res Ctr, Samsung Display Devices, D-12459 Berlin, Germany
[3] Univ Marburg, Inst Phys Nucl & Macromol Chem, D-35032 Marburg, Germany
[4] Univ Marburg, Ctr Mat Sci, D-35032 Marburg, Germany
关键词
electron injection; Alq(3); light-emitting diode;
D O I
10.1016/S0379-6779(99)00357-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electric field and temperature-dependent electron injection studies have been performed in an aluminum (Al)/tris(8-hydroxyquinolinolato)aluminum (Alq(3))/magnesium (Mg):silver (Ag) single-layer organic light-emitting diode (OLED). Semiconductor textbook theories, such as Fowler-Nordheim (FN) model for tunneling injection or Richardson-Schottky (RS) model, for thermionic emission cannot account for the experimentally observed dependence of the injection current on electric field and temperature. Excellent agreement with experiment is provided by a Monte Carlo simulation of carrier injection from a metal into an organic dielectric with random hopping sites. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:327 / 330
页数:4
相关论文
共 14 条
[1]   BLUE LIGHT-EMITTING ORGANIC ELECTROLUMINESCENT DEVICES [J].
ADACHI, C ;
TSUTSUI, T ;
SAITO, S .
APPLIED PHYSICS LETTERS, 1990, 56 (09) :799-801
[2]  
ALBRECHT U, 1995, CHEM PHYS LETT, V199, P297
[3]   Current injection from a metal to a disordered hopping system.: II.: Comparison between analytic theory and simulation [J].
Arkhipov, VI ;
Wolf, U ;
Bässler, H .
PHYSICAL REVIEW B, 1999, 59 (11) :7514-7520
[4]   Geminate pair dissociation in random organic systems [J].
Barth, S ;
Hertel, D ;
Tak, YH ;
Bassler, H ;
Horhold, HH .
CHEMICAL PHYSICS LETTERS, 1997, 274 (1-3) :165-170
[5]   CHARGE TRANSPORT IN DISORDERED ORGANIC PHOTOCONDUCTORS - A MONTE-CARLO SIMULATION STUDY [J].
BASSLER, H .
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1993, 175 (01) :15-56
[6]   Charge-dipole model for the universal field dependence of mobilities in molecularly doped polymers [J].
Dunlap, DH ;
Parris, PE ;
Kenkre, VM .
PHYSICAL REVIEW LETTERS, 1996, 77 (03) :542-545
[7]   White-light-emitting material for organic electroluminescent devices [J].
Hamada, Y ;
Sang, T ;
Fujii, H ;
Nishio, Y ;
Takanashi, H ;
Shibata, K .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1996, 35 (10B) :L1339-L1341
[8]  
Miyata S., 1997, ORGANIC ELECTROLUMIN
[9]  
NAKAMURA H, 1996, P INT S IN ORG EL, P95
[10]   ORGANIC ELECTROLUMINESCENT DIODES [J].
TANG, CW ;
VANSLYKE, SA .
APPLIED PHYSICS LETTERS, 1987, 51 (12) :913-915