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：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：KR100348207B1

公开(公告)日：2002-08-09

申请号：KR1020000034031

申请日：2000-06-21

Applicant: 한국화학연구원

Inventor： 박희동 ,  김창해 ,  박정규 ,  김경화

IPC: C09K11/08

Abstract: 본 발명은 란탄갈레이트계 적색 형광체 및 그 제조방법에 관한 것으로서, 본 발명에 따르면, 형광체 모체인 란탄갈레이트(LaGaO
3 )에 활성제로 유로피움옥사이드를 첨가함으로써 저속전자선에서 발광휘도가 우수하고 고진공에서도 안정한 물성을 가지며 저전압 전자선 여기에 의해 구동하는 전계 방출 디스플레이(Field Emission Display, FED)에 적합한 일반식 La
1-X GaO
3 :Eu
X (여기서 x는 0.0005≤X≤0.5이다)로 표시되는 란탄갈레이트계 적색 형광체 및 그 제조방법이 제공된다.

公开(公告)号：KR1020020003886A

公开(公告)日：2002-01-16

申请号：KR1020000034031

申请日：2000-06-21

Applicant: 한국화학연구원

Inventor： 박희동 ,  김창해 ,  박정규 ,  김경화

IPC: C09K11/08

CPC classification number: C09K11/7769 ,  C04B35/50 ,  C04B35/64 ,  C04B2235/3286 ,  Y02B20/181

Abstract: PURPOSE: A lanthanum gallate-based red fluorescent substance and its preparation method are provided, to improve the brightness at a low velocity electron ray and the stability under the high vacuum. CONSTITUTION: The lanthanum gallate-based red fluorescent substance is represented by La1-xGaO3;Eux, wherein x is a mole fraction of Eu to La and 0.0005

Abstract translation: 目的：提供无铼酸镧系红色荧光物质及其制备方法，以提高低速电子束的亮度和高真空下的稳定性。 构成：没有没有特定枸橼酸镧的红色荧光物质由La1-xGaO3; Eux表示，其中x是Eu对La的摩尔分数，0.0005 <= x <= 0.5，优选0.05 <= x <= 0.2。 该方法包括将氧化镧（La 2 O 3），氧化镓（Ga 2 O 3）和氧化铕（Eu 2 O 3）与Eu至La的摩尔分数混合为0.0005-0.5的步骤以制备混合物; 在1100-1600℃，优选1,200-1,400℃的温度下在大气压下烧结该混合物，得到烧结体; 粉碎烧结后的红色荧光物质。