公开(公告)号：KR100390775B1

公开(公告)日：2003-07-10

申请号：KR1020000075656

申请日：2000-12-12

Applicant: 한국화학연구원

Inventor： 박희동 ,  강윤찬

IPC: C09K11/08

Abstract: PURPOSE: A method for preparing a red fluorescent substance for PDP by spray pyrolysis and a red fluorescent substance for PDP prepared by the method are provided, to improve the shape of fluorescent substance powder and the brightness. CONSTITUTION: The method comprises the steps of dissolving a precursor which composes a fluorescent body capable of being dissolved in an aqueous alcohol, an active precursor doping the body and flux whose ratio of metal halides to carbonates is 1:0.1-40 by weight, into distilled water, respectively, to prepare 0.02-2 M fluorescent substance particle precursor solution; injecting the fluorescent substance particle precursor solution into a spraying machine to generating a liquid drop with a diameter of 0.1-100 micrometers; and injecting the liquid drop into a reactor of 200-1,500 deg.C to prepare a powdered fluorescent substance. The fluorescent substance is represented by (YxGd(1-x-y))BO3:Euy, wherein 0

Abstract translation: 目的：提供一种通过喷雾热解制备用于PDP的红色荧光物质和通过该方法制备的用于PDP的红色荧光物质的方法，以改善荧光物质粉末的形状和亮度。 构成：该方法包括以下步骤：将构成能够溶解在含水醇中的荧光体的前体，掺入该体的活性前体和金属卤化物与碳酸盐的重量比为1:0.1-40的熔剂溶解成 蒸馏水分别制备0.02-2M的荧光物质颗粒前体溶液; 将所述荧光物质粒子前体溶液注入喷雾机中，产生直径为0.1〜100微米的液滴; 并将液滴注入200-1,500℃的反应器中以制备粉末荧光物质。 荧光物质由（YxGd（1-x-y））BO3：Euy表示，其中0≤x≤1,0.01≤y≤0.1。

公开(公告)号：KR1020030033864A

公开(公告)日：2003-05-01

申请号：KR1020010066033

申请日：2001-10-25

Applicant: 한국화학연구원

Inventor： 박희동 ,  김창해 ,  강윤찬 ,  최경재

IPC: C09K11/78

CPC classification number: C09K11/7794 ,  C09K11/7786 ,  H01L33/502 ,  Y02B20/181

Abstract: PURPOSE: Provided is a tungsten-based red phosphor used for a UV LED and an active luminescent LCD, which has excellent luminescent brightness by doping europium and samarium to a tungsten-based oxide matrix. CONSTITUTION: The tungsten-based red phosphor represented by the formula: (M(WO4)y:Euz,Smx) is produced by adding europium oxide as an activator and samarium oxide as an energizer to the tungsten-based oxide matrix. The phosphor has a strong absorption peak in the wavelength range of 400-410nm. In the formula, M is at least one or two metal elements selected from Li, Na, K, Ba, Ca, Mg, and Sr and 0.001

Abstract translation: 目的：提供一种用于UV LED和有源发光LCD的钨基红色荧光体，其通过将铕和钐掺杂到钨基氧化物基体上具有优异的发光亮度。 构成：通过将氧化铕作为活化剂和氧化钐作为增能剂加入到钨基氧化物基质中，由式（M（WO4）y：Euz，Smx）表示的钨基红色荧光体是产生的。 荧光体在400-410nm的波长范围内具有很强的吸收峰。 在该式中，M是选自Li，Na，K，Ba，Ca，Mg和Sr中的至少一种或两种金属元素，0.001≤x≤0.3,0.5≤y≤3,0.01≤ ž<= 0.9。

公开(公告)号：KR1020020089633A

公开(公告)日：2002-11-30

申请号：KR1020010028432

申请日：2001-05-23

Applicant: 한국화학연구원

Inventor： 강윤찬 ,  박희동

IPC: B22F9/30

Abstract: PURPOSE: Provided is a process for producing spherical nickel or nickel oxide fine powder used as base material for a laminated ceramic condenser by a spray thermal decomposition method. CONSTITUTION: The process comprises the steps of: preparing 0.02-4M(based on the nickel) of a precursor solution by dissolving a nickel precursor material selected from nitrate, acetate, chloride, hydrate, and sulfate of nickel and an additive capable of forming a polymer, selected from di- or tri-carboxylic acid or multi-valent alcohol or a mixture thereof in distilled water or alcohol; injecting the precursor solution into a sprayer and generating drops with a diameter of 0.1-100 micrometer; injecting the drops into a reactor with 200-1500deg.C and drying and performing a thermal decomposition under oxidizing, reducing, or inert gas atmosphere to obtain the nickel or nickel oxide fine powder; additionally, heat-treating the nickel or nickel oxide fine powder at 300-1200deg.C for 10 minutes to 5 hours.

Abstract translation: 目的：提供通过喷雾热分解法制造用于层压陶瓷冷凝器的基材的球形镍或氧化镍细粉的方法。 方法：该方法包括以下步骤：通过将选自硝酸盐，乙酸盐，氯化物，水合物和硫酸镍的镍前体材料溶解在镍中制备0.02-4M（基于镍）的前体溶液和能够形成 聚合物，选自二羧酸或三元羧酸或多元醇或其混合物在蒸馏水或醇中; 将前体溶液注入喷雾器并产生直径为0.1-100微米的液滴; 将液滴注入200-1500℃的反应器中，在氧化，还原或惰性气体气氛下干燥并进行热分解，得到镍或氧化镍细粉; 此外，在300-1200℃下将镍或镍氧化物细粉末热处理10分钟至5小时。

公开(公告)号：KR1020020019828A

公开(公告)日：2002-03-13

申请号：KR1020000053182

申请日：2000-09-07

Applicant: 한국화학연구원 ,  한국과학기술원

Inventor： 강윤찬 ,  박희동 ,  김경화 ,  박승빈 ,  노현숙

IPC: C09K11/54 ,  B82B3/00

CPC classification number: C09K11/595 ,  C01P2004/03 ,  C09K11/574 ,  H01J11/42 ,  H01J29/20 ,  Y02B20/181

Abstract: PURPOSE: Provided is a process for producing spherical green phosphor powder for a plasma display or a lamp by a spray-pyrolysis method optimizing the composition of precursors. CONSTITUTION: The process for producing the spherical green phosphor powder(formula, Zn2-xSiO4:Mnx) comprises the steps of: preparing a precursor solution of the phosphor powder by dissolving a zinc precursor selected from zinc nitrate, zinc acetate, and zinc chloride and a manganese precursor selected from manganese sulfide, manganese chloride, manganese acetate, and manganese nitrate in distilled water and dissolving 105-125%(based on the zinc) of tetraethyl ortho-silicate(TEOS) in distilled water with a very small amount of nitric acid and alcohol or dispersing nano-sized SiO2 powder, produced by a gas or liquid phase method, in the solution, wherein the total concentration of the precursor solution is 0.02-3M; injecting the precursor solution into a sprayer to generate droplets having a diameter of 0.1-100 micrometer; injecting the droplets into a tube type reactor with a high temperature of 200-1500deg.C: additionally, oxidation- or oxidation/reduction-heating the obtained phosphor powder at 800-1350deg.C for 1-5hours. In the formula, 0.011

Abstract translation: 目的：提供一种通过优化前体组成的喷雾热解法制造等离子显示器或灯的球形绿色荧光粉的方法。 构成：制备球形绿色荧光体粉末（配方Zn2-xSiO4：Mnx）的方法包括以下步骤：通过溶解选自硝酸锌，乙酸锌和氯化锌的锌前驱物制备荧光体粉末的前体溶液，以及 在蒸馏水中选择锰硫化物，氯化锰，乙酸锰和硝酸锰的锰前体，并将105-125％（基于锌）的原硅酸四乙酯（TEOS）溶解在蒸馏水中，用极少量的硝酸 酸和醇，或者通过气相或液相法分散纳米尺寸的SiO 2粉末，其中前体溶液的总浓度为0.02-3M; 将前体溶液注入喷雾器中以产生直径为0.1-100微米的液滴; 将液滴注入高温200-1500℃的管式反应器中。另外，将得到的荧光体粉末氧化或氧化/还原加热至800-1350℃1-5小时。 在公式中，0.011

公开(公告)号：KR1020020015503A

公开(公告)日：2002-02-28

申请号：KR1020000048628

申请日：2000-08-22

Applicant: 한국화학연구원

Inventor： 박희동 ,  강윤찬 ,  박승빈 ,  서대종

IPC: C09K11/00

CPC classification number: C09K11/7787 ,  C04B35/6267 ,  H01J11/42 ,  H01J29/20 ,  H05B33/14 ,  Y02B20/181

Abstract: PURPOSE: Provided is a preparation method of red fluorescent material with monoclinic and cubic phase by using flame spray pyrolysis, wherein sprayed droplet is an individual fluorescent material having perfect spherical shapes with the filled inside and is uniformly distributed without coagulation. The material is used in the plasma display, field emission display and for the lamp in the cathode-ray tube. CONSTITUTION: The above red fluorescent material is represented by the formula 1:(YxGd1-x)2O3:Eu, wherein 0

Abstract translation: 目的：提供通过使用火焰喷射热解法制备具有单斜晶相和立方相的红色荧光材料的方法，其中喷雾液滴是具有完全球形的单个荧光材料，其填充内部并且均匀分布而不凝结。 该材料用于等离子体显示，场发射显示和阴极射线管中的灯。 构成：上述红色荧光体由式1表示：（YxGd1-x）2O3：Eu，其中0 <= x <= 1。 该制备方法包括：将由Y和Gd或其混合物和Eu活化剂组成的荧光体溶解在蒸馏水中制备0.02-3M前体溶液，其中Eu至1mol主体的Eu掺杂浓度为0.5-15mol％ 主体和活化剂选自硝酸盐，乙酸盐和氯化物; 加入1-30重量％的选自LiCl，KCl，NaCl，Li2CO3，Na2CO3，H3BO3或其混合物的熔融剂; 通过将上述前体溶液引入微波炉，空气喷嘴，微波喷嘴和过滤膨胀气溶胶发生器等喷雾机中，使上述物料的液滴直径为0.1-100微米。 将上述液滴通过扩散火焰反应器在1500-3,000℃下; 并将荧光液滴在600-1,500℃下进行热处理，使其成为单斜或立方体。