公开(公告)号：KR100376276B1

公开(公告)日：2003-03-17

申请号：KR1020000053182

申请日：2000-09-07

Applicant: 한국화학연구원 ,  한국과학기술원

Inventor： 강윤찬 ,  박희동 ,  김경화 ,  박승빈 ,  노현숙

IPC: C09K11/54 ,  B82B3/00

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方法生产用于等离子显示器或灯的球形绿色荧光体粉末的方法。 构成：球形绿色荧光体粉末（式Zn2-xSiO4：Mnx）的制造方法包括以下步骤：通过溶解选自硝酸锌，乙酸锌和氯化锌的锌前体，制备荧光粉的前体溶液和 在蒸馏水中选择硫化锰，氯化锰，醋酸锰和硝酸锰的锰前体，并且在蒸馏水中溶解105-125％（以锌计）的原硅酸四乙酯（TEOS）和极少量的硝酸 酸和醇的溶液中，或者将通过气相或液相法生产的纳米尺寸的SiO 2粉末分散在溶液中，其中前体溶液的总浓度为0.02-3M; 将前体溶液注入喷雾器以产生直径为0.1-100微米的液滴; 将液滴注入200-1500℃高温的管式反应器中。C：另外，将得到的荧光粉粉末在800-1350℃氧化或氧化/还原 - 加热1-5小时。 在该公式中，0.011

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：KR100503132B1

公开(公告)日：2005-07-22

申请号：KR1020020069146

申请日：2002-11-08

Applicant: 한국화학연구원

Inventor： 강윤찬 ,  김창해 ,  박승혁 ,  박희동

IPC: B22F9/08

Abstract: 본 발명은 구형 니켈 금속 미세분말의 제조방법에 관한 것으로서, 분무열분해 공정을 이용하여 니켈 금속 미세분말을 제조함에 있어서, 니켈 전구체 물질과 함께 첨가제로서 에틸렌디아민테트라아세트산계, 에탄올아민계 및 에틸렌디아민계 화합물 중에서 선택된 1종 이상의 킬레이트화제(chelating agent)를 첨가하는 것을 특징으로 하며, 본 발명의 방법에 따라 제조된 니켈 금속 미세분말은, 종래에 첨가제 없이 금속 전구체 물질만을 사용하여 제조하는 방법과 달리, 니켈 금속 미세분말의 형태, 평균 크기 및 크기 분포 특성이 개선되며 속이 차고 균일한 미세한 크기를 갖는 구형의 니켈 금속 미세분말을 제조할 수 있다.

公开(公告)号：KR100496051B1

公开(公告)日：2005-06-16

申请号：KR1020020062483

申请日：2002-10-14

Applicant: 한국화학연구원

Inventor： 강윤찬 ,  김은정 ,  이동열 ,  박희동

IPC: C09K11/77

Abstract: 본 발명은 하기 화학식 1로 표시된, 유로피움으로 활성화된 이트륨 가돌리늄 보레이트계 적색 형광체 및 그의 제조방법에 관한 것으로서, 본 발명에 따른 이트륨 가돌리늄 보레이트계 형광체는 전구체 용액 제조시 형광체 모체로서 이트륨(Y), 가돌리늄(Gd) 및 붕소(B)를 사용하고 상기 모체를 도핑하기 위한 활성제로서 유로피움(Eu)을 사용하며, 특히 전구체 용액의 수소이온 농도를 특정 범위로 제어함에 따라, 발광 특성이 우수하고 입자 형태 및 분포가 크게 향상되며, 박형화 및 경량화가 용이하여 평판디스플레이 형광체로서 유용하게 사용될 수 있다:

(Y
1-xy Gd
x )BO
3 :Eu
y


상기 식에서,
0〈x〈1이고, 0

公开(公告)号：KR100458126B1

公开(公告)日：2004-11-20

申请号：KR1020020001626

申请日：2002-01-11

Applicant: 한국화학연구원

Inventor： 박희동 ,  강윤찬 ,  김창해 ,  강희상

IPC: C09K11/59 ,  B82B3/00

Abstract: PURPOSE: Provided are a high efficiency green phosphor which is suitable for long length UV light emitting diode(LE) and actively light emitting liquid crystal display, and a method for producing the same. CONSTITUTION: The green phosphor based on barium strontium silicate, is represented by formula 1: (Ba1-xSrx)2SiO4:Eu2+yMz(wherein M is Ho, Er, Ce, Y or Gd, 0

Abstract translation: 目的：提供一种适用于长尺寸紫外发光二极管（LE）和有源发光液晶显示器的高效绿色荧光粉及其制备方法。 构成：基于硅酸钡锶的绿色磷光体由式1表示：（Ba1-xSrx）2SiO4：Eu2 + yMz（其中M是Ho，Er，Ce，Y或Gd，0

公开(公告)号：KR1020040085039A

公开(公告)日：2004-10-07

申请号：KR1020040020932

申请日：2004-03-26

Applicant: 한국화학연구원

Inventor： 김창해 ,  박정규 ,  박희동

IPC: C09K11/71

CPC classification number: C09K11/7734 ,  H01L33/502

Abstract: PURPOSE: Provided is a strontium silicate-based phosphor, which shows a broad spectrum of wavelengths of between 500 and 700 nm, has improved color purity and gives stable light-emitting characteristics for a long time even under high temperature. CONSTITUTION: The strontium silicate-based phosphor is represented by the formula of Sr3-xSiO5:Eu2+, wherein x ranges from 0 to 1 (excluding 0). The strontium silicate-based phosphor is prepared by the method comprising the steps of: forming a mixture containing strontium carbonate(SrCO3), silica(SiO2) and europium oxide(Eu2O3); drying the mixture; and heat-treating the dried mixture under reductive atmosphere. A light-emitting diode includes a light-emitting chip(104), and the strontium silicate-based phosphor(108) excited by the light emitted from the light-emitting diode chip(104).

Abstract translation: 目的：提供一种硅酸锶基荧光体，其表现出广泛的波长范围在500和700nm之间，即使在高温下也能长时间提供稳定的发光特性。 构成：硅酸锶基荧光体由Sr3-xSiO5：Eu2 +的式表示，其中x的范围为0至1（不包括0）。 通过包括以下步骤的方法制备硅酸锶基荧光体：形成含有碳酸锶（SrCO 3），二氧化硅（SiO 2）和氧化铕（Eu 2 O 3）的混合物; 干燥混合物; 并在还原气氛下对干燥的混合物进行热处理。 发光二极管包括发光芯片（104）和由发光二极管芯片（104）发射的光激发的硅酸锶基荧光体（108）。

公开(公告)号：KR1020040078759A

公开(公告)日：2004-09-13

申请号：KR1020030013603

申请日：2003-03-05

Applicant: 한국화학연구원

Inventor： 강윤찬 ,  이교광 ,  박희동

IPC: C01G23/00 ,  B82B3/00

CPC classification number: C01G23/003 ,  C01P2004/64

Abstract: PURPOSE: A method for preparing a nano-sized titanate-based powder and a nano-sized titanate-based powder prepared by the method are provided, to produce a non-cohesive nano-sized titanate-based powder massively. CONSTITUTION: The method comprises the steps of dissolving a titanate-based precursor material, an organic carboxylic acid and an additive selected from a glycol and polyvalent alcohols in a solvent to prepare a titanate-based precursor solution; generating a liquid drop from the titanate-based precursor solution; and drying the liquid drop, sintering the dried one and milling the sintered one to prepare a titanate-based powder. Preferably the titanate-based precursor material is at least one selected from the group consisting of a titanium alkoxide, a titanium chloride, a titanium hydroxide and a titanium oxide; the solvent is water, an alcohol or a weak acid aqueous solution; the glycol is at least one selected from the group consisting of ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, polyethylene glycol, polypropylene glycol, triethylene glycol, tetraethylene glycol and butanediol-1,4-hexylene glycol oxylene glycol; the organic carboxylic acid is at least one selected from the group consisting of citric acid, malic acid, mesotartaric acid, pyruvic acid and meconic acid.

Abstract translation: 目的：提供一种制备纳米尺寸钛酸酯基粉末和通过该方法制备的纳米尺寸钛酸酯基粉末的方法，以大量生产非粘性纳米尺寸的钛酸酯基粉末。 方案：该方法包括将钛酸酯基前体材料，有机羧酸和选自二元醇和多元醇的添加剂溶解在溶剂中以制备钛酸酯基前体溶液的步骤; 从钛酸盐前体溶液中产生液滴; 干燥液滴，烧结干燥后的粉末，研磨烧结后的粉末。 钛酸酯类前体材料优选为选自钛醇盐，氯化钛，氢氧化钛和氧化钛中的至少一种; 溶剂为水，醇或弱酸水溶液; 二醇是选自乙二醇，丙二醇，二甘醇，二丙二醇，聚乙二醇，聚丙二醇，三甘醇，四甘醇和丁二醇-1,4-亚己基二醇二醇的至少一种; 有机羧酸是选自柠檬酸，苹果酸，间酒石酸，丙酮酸和肉豆蔻酸中的至少一种。

公开(公告)号：KR100447947B1

公开(公告)日：2004-09-08

申请号：KR1020010075490

申请日：2001-11-30

Applicant: 한국화학연구원

Inventor： 박희동 ,  김창해 ,  박정규 ,  박상미 ,  정양선

IPC: C09K11/80

Abstract: PURPOSE: A terbium activated CaO-Gd2O3-Al2O3 three-component green fluorescent substance composition for VUV excitation is provided, which composition has a short afterglow time in VUV and an excellent emission luminance and is suitable for a plasma display panel. CONSTITUTION: The CaO-Gd2O3-Al2O3 three-component green fluorescent substance composition is represented by CakGdlTbmAlnO£k+3/2(l+m+n)|, wherein 0.20

Abstract translation: 目的：提供一种用于VUV激发的铽活化的CaO-Gd 2 O 3 -Al 2 O 3三组分绿色荧光物质组合物，该组合物在VUV中具有短的余辉时间和优异的发光亮度，并且适用于等离子体显示面板。 构成：CaO-Gd 2 O 3 -Al 2 O 3三组分绿色荧光物质组合物用CakGdlTbmAlnO·k + 3/2（1 + m + n）1表示，其中0.20≤k≤0.31,0.20≤l≤ ; =0.31,0.001≤m≤0.1,0.45≤n≤0.55和k + 1 + m + 1 = 1。 组合物由CakGdlTbmAlnO + k + 3/2（1 + m + n）|表示，其中0.20≤k≤0.40,0.05≤l≤0.40,0.001≤m≤0.30,0.30 ＆lt; = n <= 0.65，并且k + 1 + m + 1 = 1。 该组合物用CakGdlTbmAlnO·k + 3/2（1 + m + n）1表示，其中0.60≤k≤0.7,0.0≤l≤0.1,0.001≤m≤0.1,0.25 ＆lt; = n <= 0.35，并且k + 1 + m + 1 = 1。 该组合物用CakGdlTbmAlnO + k + 3/2（1 + m + n）|表示，其中0.05≤k≤0.12，l =0,0.001≤m≤0.11,0.85≤n≤1。 = 0.95，并且k + 1 + m + 1 = 1。 该组合物用CakGdlTbmAlnO·k + 3/2（1 + m + n）|表示，其中k =0,0.35≤1≤0.55,0.001≤m≤0.17,0.40≤n≤1。 = 0.60，并且k + 1 + m + 1 = 1。 组合物由CakGdlTbmAlnO·k + 3/2（1 + m + n）1表示，其中k = 0,0.20 <=1≤0.35,0.001≤m≤0.17,0.60≤n< = 0.70，并且k + 1 + m + 1 = 1。 此外，组合物由CakGd1TbmAlnO3 + k + 3/2（1 + m + n）|表示，其中k =0,0.65≤1≤0.75,0.001≤m≤0.23,0.25≤n< ; = 0.30，并且k + 1 + m + 1 = 1。