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    • 1. 发明授权
    • 망간 도핑된 황화아연 나노입자의 제조방법
    • ZNS的制备方法:MN纳米颗粒
    • KR100842376B1
    • 2008-07-01
    • KR1020070022666
    • 2007-03-07
    • 한빔 주식회사재단법인서울대학교산학협력재단
    • 박병우손동연정대룡김종민오병두이재승
    • B82B3/00C01G9/08B82Y40/00
    • C01G9/08B82B3/0038B82Y30/00B82Y40/00C01P2004/64
    • A preparation method of even-sized ZnS:Mn nanoparticles is provided to obtain ZnS:Mn nanoparticles having excellent phosphorescence at lower temperature in a simple process economically by employing liquid-solid-solution synthesis method under optimized selections for raw material compounds, Mn concentration and treatment temperature. A preparation method of ZnS:Mn nanoparticles comprises steps of: 1) forming a primary liquid layer by dissolving zinc acetate and manganese nitrate in distilled water; 2) forming a secondary layer by adding linoleate type organic materials to the primary layer; 3) forming a tertiary liquid layer by adding linoleic acid and a solution having thioacetamide in ethanol to the secondary layer; 4) forming ZnS:Mn nanoparticles by treating the prepared primary, secondary and tertiary layers at 85-95deg.C for 9-12 hours; 5) collecting and washing the ZnS:Mn nanoparticles; 6) drying the washed ZnS:Mn nanoparticles; and 7) treating the dried ZnS:Mn nanoparticles at ambient temperature-600deg.C for 9-12 hours. The molar ratio of zinc acetamide in step 1) and thioacetamide in step 3) is 0.9-1.1:0.9-1.1, respectively. The amount of manganese nitrate is 1-10at.% in the solution in step 1). The molar ratio of zinc acetamide and manganese nitrate is 1:0.005-0.02 in step 1).
    • 提供均匀ZnS:Mn纳米粒子的制备方法,在经过优化选择的原料化合物,Mn浓度和液体固溶体合成方法经济性的基础上,在较低温度下获得了较低的磷光ZnS:Mn纳米粒子, 处理温度。 ZnS:Mn纳米颗粒的制备方法包括以下步骤:1)通过将乙酸锌和硝酸锰溶解在蒸馏水中形成主液层; 2)通过将亚油酸盐型有机材料加入到初级层中形成第二层; 3)通过将亚油酸和在乙醇中含有硫代乙酰胺的溶液加入到二级层中形成叔液层; 4)通过在85-95℃下处理制备的初级,二级和三级层9-12小时形成ZnS:Mn纳米颗粒; 5)收集和洗涤ZnS:Mn纳米粒子; 6)干燥洗涤后的ZnS:Mn纳米粒子; 和7)在环境温度为600℃下处理干燥的ZnS:Mn纳米颗粒9-12小时。 步骤1)中乙酰胺锌与步骤3)中硫代乙酰胺的摩尔比分别为0.9-1.1:0.9-1.1。 在步骤1)的溶液中,硝酸锰的量为1-10at。%。 步骤1)中乙酰胺和硝酸锰的摩尔比为1:0.005-0.02。
    • 7. 发明公开
    • 광추출 효율이 개선된 발광다이오드 소자 및 이의 제조방법
    • 具有先进光提取效率的发光二极管装置及其制备方法
    • KR1020070008745A
    • 2007-01-18
    • KR1020050062481
    • 2005-07-12
    • 한빔 주식회사
    • 유민아이재승신부건하덕식최민호강종훈
    • H01L33/20
    • An LED device is provided to prevent an electrode material from being corroded by an etch process, by forming an uneven pattern on a light emitting surface of an LED part, by performing an etch process and by forming an electrode. An uneven pattern is formed on a light emitting surface in an LED part. An ohmic contact metal layer is positioned in a recess part which is formed by partially etching the light emitting surface of the unevenly patterned LED part. In the LED part, an undoped layer composed of a III-V group compound and a semiconductor layer are sequentially stacked. The semiconductor layer includes an n-type layer having a III-V group compound and an n-type dopant, an active layer, and a p-type layer having a III-V group compound and a p-type dopant.
    • 提供LED装置,通过在LED部件的发光表面上形成不均匀图案,通过进行蚀刻工艺和形成电极来防止电极材料被蚀刻工艺腐蚀。 在LED部件的发光面上形成凹凸图案。 欧姆接触金属层位于通过部分蚀刻不均匀图案化的LED部分的发光表面而形成的凹部中。 在LED部中依次层叠由III-V族化合物和半导体层构成的未掺杂层。 半导体层包括具有III-V族化合物和n型掺杂剂的n型层,有源层和具有III-V族化合物和p型掺杂剂的p型层。