은계 합금 및 그 제조방법, 은합금 복합박막 및 그 응용

• Main Authors: YAN ZHANSHENG, WU RONGCHEIN RICHARD, CHEN XIAODA, HOU QINGLONG, YANG ZHIHUAN, LIU YU, ZHANG KE
• Format: Patent
• Language: Korean
• Published: 18.04.2023
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; SEMICONDUCTOR DEVICES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF ALLOYS OR NON-FERROUS METALS

본 발명은 OLED 기술분야에 속한 것으로, 구체적으로는 은계 합금 및 그 제조방법, 은합금 복합박막 및 그 응용에 관한 것이다. 본 발명에서 제공하는 은계 합금은 은과 도핑 요소를 포함하고, 상기 은계 합금의 0.01~0.8 %의 질량 백분율을 차지하고, 상기 도핑 요소는 아연을 포함한다. 본 발명의 은계 합금은 은의 우수한 전기전도성 및 열전도성을 가질 뿐만 아니라 아연의 내식성을 가지므로 고온조건에서 은계 합금이 더 높은 내식성을 가지며, 은계 합금이 고온 조건에서 섬 모양 구조의 형성을 감소시킬 수 있고 여전히 매우 높은 반사율을 갖도록 보장한다. 본 발명에서 제공하는 은합금 복합 박막은 은계 합금 박막층 및 은계 합금 박막층의 양측에 적층 된 산화인듐주석 박막층을 포함한다. 은합금 복합박막은 높은 온도에서 반사율이 높으면서도 높은 일함수를 가지므로 은합금 복합박막을 OLED의 양극으로 사용하면 OLED의 발광효율을 높일 수 있다. The present invention belongs to the technical field of OLEDs, and particularly relates to a silver-based alloy, a preparation method therefor, a silver alloy composite thin film and the use thereof. The silver-based alloy provided in the present invention comprises silver and doping elements, wherein the doping elements account for 0.01-0.8% by mass of the silver-based alloy, and the doping elements comprise zinc. The silver-based alloy in the present invention not only has excellent electrical conductivity and thermal conductivity of silver, but also has a resistance to zinc corrosion, so that the silver-based alloy has a higher corrosion resistance under a high-temperature condition, which ensures the formation of island-shaped structures of the silver-based alloy are reduced under the high-temperature condition, and the silver-based alloy still has a very high reflectivity. The silver alloy composite thin film provided in the present invention comprises a silver-based alloy thin film layer, and indium tin oxide thin film layers, which cover both sides of the silver-based alloy thin film. The silver alloy composite thin film has a relatively high reflectivity at a high temperature, and also has a high work function; and when the silver alloy composite thin film is used as an anode in an OLED, the luminous efficiency of the OLED can be improved.