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1. WO2005062398 - ORGANIC ELECTROLUMINESCENT DEVICES

Publication Number WO/2005/062398
Publication Date 07.07.2005
International Application No. PCT/US2004/039824
International Filing Date 29.11.2004
IPC
H01L 51/30 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
05specially adapted for rectifying, amplifying, oscillating or switching and having at least one potential-jump barrier or surface barrier; Capacitors or resistors with at least one potential-jump barrier or surface barrier
30Selection of materials
H01L 51/50 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
CPC
H01L 51/0085
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
0032Selection of organic semiconducting materials, e.g. organic light sensitive or organic light emitting materials
0077Coordination compounds, e.g. porphyrin
0084Transition metal complexes, e.g. Ru(II)polypyridine complexes
0085comprising Iridium
H01L 51/5016
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]
5012Electroluminescent [EL] layer
5016Triplet emission
H01L 51/5096
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]
5096Carrier blocking layer
Applicants
  • EASTMAN KODAK COMPANY [US]/[US] (AllExceptUS)
  • KONDAKOVA, Marina Eduardovna [RU]/[US] (UsOnly)
  • YOUNG, Ralph Howard [US]/[US] (UsOnly)
Inventors
  • KONDAKOVA, Marina Eduardovna
  • YOUNG, Ralph Howard
Common Representative
  • EASTMAN KODAK COMPANY
Priority Data
10/729,20805.12.2003US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ORGANIC ELECTROLUMINESCENT DEVICES
(FR) DISPOSITIFS ELECTROLUMINESCENTS ORGANIQUES
Abstract
(EN)
Disclosed is an electroluminescent device comprising a cathode and an anode; and, located therebetween, a light-emitting layer (LEL) comprising a phosphorescent green-light-emitting material and a host material for the light-emitting material, and in a layer adjacent to the LEL on the anode side, an exciton-blocking layer containing a compound having a hole mobility of at least 1x10¿-3? cm¿2?V¿-1?s¿-1? and a triplet energy exceeding that of the green-light-emitting material of the LEL. Such a device provides useful light emission.
(FR)
L'invention concerne un dispositif électroluminescent organique comprenant une cathode et une anode ; et située entre, une couche photoémettrice (LEL) comprenant un matériau phosphorescent émettant une lumière verte et un matériau hôte pour le matériau photoémetteur, et dans une couche adjacente à la LEL, côté anode, une couche bloquant les excitons, qui contient un composé à mobilité de trous d'au moins 1x10-3 cm2V-1s-1 et une énergie triplet dépassant celle du matériau émettant une lumière verte de la LEL. Un tel dispositif permet d'obtenir une photoémission utile.
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