Organic/Polymer Electroluminescent Device Employing Single-ion Conductor

• Main Authors: PARK, O OK, LEE, TAE U
• Format: Patent
• Language: English; Korean
• Published: 09.05.2002
• Edition: 7
• Subjects: ADHESIVES; BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; SEMICONDUCTOR DEVICES; THEIR PREPARATION OR CHEMICAL WORKING-UP

PURPOSE: Organic/polymer electroluminescent devices employing single-ion conductors are provided, which use the single-ion conductors as an electron or hole injecting layer to improve luminescent efficiency. CONSTITUTION: The organic/polymer electroluminescent device includes a transparent substrate, a semitransparent electrode deposited on the transparent substrate, a hole injecting layer comprised on the semitransparent electrode and an electroluminescent layer formed with an organic luminescent material. An electron injecting layer is formed on the electroluminescent layer, and a metal electrode is deposited on the electron injecting layer. The hole injecting layer and the electron injecting layer are constituted with single-ion conductors. The transparent substrate is a quartz or a PET(Polyethylene terephthalate). The semitransparent electrode is an ITO(Indium Tine Oxide), a PEDOT(Polyethylene dioxythiophene) or a polyaniline. 본 발명은 단일 이온 전도체(single-ion conductor)를 전자 또는 정공주입층(electron- or hole- injecting layer)으로 이용한 유기/고분자 전기발광소자(organic/polymer electroluminescent device)에 관한 것이다. 본 발명의 단일 이온 전도체를 이용한 유기/고분자 전기발광소자는, 투명기판(transparent substrate); 투명기판위에 증착된 반투명 전극(semitransparent electrode); 반투명 전극위에 구비된 정공주입층; 정공주입층위에 구비되고, 유기 발광물질(organic luminescent materials)로 구성된 전기발광층(electroluminescent layer); 전기발광층위에 구비된 전자주입층; 및 전자주입층위에 증착된 금속전극(metal electrode)을 포함하는 전기발광소자(electroluminescent device)에 있어서, 정공주입층과 전자주입층이 단일 이온 전도체로 구성된 것을 특징으로 한다. 본 발명의 유기/고분자 전기발광소자는 우수한 발광효율(luminescent efficiency)을 나타내고, 켜짐전압(turn-on voltage)이 낮으므로, 고효율 유기/고분자 전기 발광 소자의 개발에 널리 활용될 수 있을 것이다.