Electroluminescence from carbazole dimers

被引:78
作者
Romero, DB [1 ]
Nuesch, F [1 ]
Benazzi, T [1 ]
Ades, D [1 ]
Siove, A [1 ]
Zuppiroli, L [1 ]
机构
[1] UNIV PARIS 13, LAB RECH MACROMOL, F-93430 VILLETANEUSE, FRANCE
关键词
D O I
10.1002/adma.19970091506
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Blue light-emission from a single-layer organic LED (light-emitting diode) based on carbazole dimers is reported. The device fabrication, involving vacuum sublimation of the dimer onto an indium tin oxide covered glass substrate, is described and the source of the electroluminescence elucidated. It is deduced that confined intra-dimer luminescence excitations and a balanced double-charge injection result in a device with good luminance and modest external quantum efficiencies. Of the three primary colors required for full-color display applications, blue has been the most elusive to obtain.
引用
收藏
页码:1158 / +
页数:5
相关论文
共 20 条
[1]   Controlling Schottky energy barriers in organic electronic devices using self-assembled monolayers [J].
Campbell, IH ;
Rubin, S ;
Zawodzinski, TA ;
Kress, JD ;
Martin, RL ;
Smith, DL ;
Barashkov, NN ;
Ferraris, JP .
PHYSICAL REVIEW B, 1996, 54 (20) :14321-14324
[2]   AN ANALYSIS OF THE INFRARED AND RAMAN-SPECTRA OF THE FORMIC-ACID DIMER (HCOOH)2 [J].
CHANG, YT ;
YAMAGUCHI, Y ;
MILLER, WH ;
SCHAEFER, HF .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (24) :7245-7253
[3]  
FRANZ W, 1958, Z NATURFORSCH PT A, V13, P484
[4]   BLUE ELECTROLUMINESCENT DEVICES BASED ON SOLUBLE POLY(P-PYRIDINE) [J].
GEBLER, DD ;
WANG, YZ ;
BLATCHFORD, JW ;
JESSEN, SW ;
LIN, LB ;
GUSTAFSON, TL ;
WANG, HL ;
SWAGER, TM ;
MACDIARMID, AG ;
EPSTEIN, AJ .
JOURNAL OF APPLIED PHYSICS, 1995, 78 (06) :4264-4266
[5]  
GOSS LB, 1996, PHYS TODAY, V49, P18
[6]   REALIZATION OF A BLUE-LIGHT-EMITTING DEVICE USING POLY(PARA-PHENYLENE) [J].
GREM, G ;
LEDITZKY, G ;
ULLRICH, B ;
LEISING, G .
ADVANCED MATERIALS, 1992, 4 (01) :36-37
[7]   A HIGH-EFFICIENCY BLUE-LIGHT-EMITTING DIODE BASED ON NOVEL LADDER POLY(P-PHENYLENE)S [J].
GRUNER, J ;
HAMER, PJ ;
FRIEND, RH ;
HUBER, HJ ;
SCHERF, U ;
HOLMES, AB .
ADVANCED MATERIALS, 1994, 6 (10) :748-752
[8]  
Hamada Y., 1992, Optoelectronics - Devices and Technologies, V7, P83
[9]   ELECTROLUMINESCENCE OF PURE POLY(N-VINYLCARBAZOLE) AND ITS BLENDS WITH A MULTIBLOCK COPOLYMER [J].
HU, B ;
YANG, Z ;
KARASZ, FE .
JOURNAL OF APPLIED PHYSICS, 1994, 76 (04) :2419-2422
[10]  
KELDYSH LV, 1958, ZH EKSP TEOR FIZ, V7, P788