公开(公告)号：KR1020000074761A

公开(公告)日：2000-12-15

申请号：KR1019990018916

申请日：1999-05-25

Applicant: 한국화학연구원

Inventor： 정하균 ,  성부용 ,  박희동

IPC: C09K11/54

CPC classification number: C09K11/595 ,  C09K11/646

Abstract: PURPOSE: A process for preparing a Zn2SiO4:Mn green light-emitting fluorescent substance having narrow particle size distribution, almost truly spherical form and low coagulating property and excellent in fluorescent intensity is provided which produces the fluorescent substance being widely applicable to the display industry including an electronic display such as cathode-ray tubes and field emission displays. CONSTITUTION: In the preparation of an orthosilicic acid zinc-based green light emitting fluorescent substance, a basic catalyst and water are added to 0.05 to 2 mol/L ethanol diluted solution of tetraethyl orthosilicic acid and filtered. The filtrate is dispersed in a Zinc component- and Mn component-containing solution and added with oxalic acid or oxalate to give precipitated mixtures, which are dried and heat treated under reducing atmosphere to give the fluorescent substance powder.

Abstract translation: 目的：制备粒径分布窄，几乎真实球形，凝固性低，荧光强度优异的Zn2SiO4：Mn绿色发光荧光体的制造方法，其荧光物质广泛适用于显示工业，包括 诸如阴极射线管和场发射显示器的电子显示器。 构成：在正硅酸锌系绿色发光荧光物质的制备中，向0.05〜2mol / L四乙基正硅酸乙醇稀释溶液中加入碱性催化剂和水，并过滤。 将滤液分散在含锌组分和Mn组分的溶液中并加入草酸或草酸盐，得到沉淀的混合物，将其在还原气氛下进行干燥和热处理，得到荧光物质粉末。

公开(公告)号：KR100447936B1

公开(公告)日：2004-09-08

申请号：KR1020010077333

申请日：2001-12-07

Applicant: 한국화학연구원

Inventor： 정하균 ,  박희동 ,  김창해 ,  성부용

IPC: C09K11/59

Abstract: PURPOSE: A vacuum UV excited green fluorescent substance and its preparation method are provided, wherein the fluorescent substance shows excellent luminance and dispersibility, reduced aggregation and a uniform spherical shape and is useful for preparing a plasma display panel. CONSTITUTION: The vacuum UV excited green fluorescent substance is represented by the formula: (Zn(1-x)Mnx)O·ySiO2, wherein 0.005

Abstract translation: 目的：提供一种真空紫外激发的绿色荧光物质及其制备方法，其中荧光物质显示出优异的亮度和分散性，减少的聚集和均匀的球形，并且可用于制备等离子体显示面板。 构成：真空紫外激发的绿色荧光物质由下式表示：（Zn（1-x）Mn x）O＆middot; y SiO 2，其中0.005≤x≤0.16和1.6≤y≤2.5。 该方法包括以下步骤：将乙醇与原硅酸四乙酯混合，并向混合物中加入液氨和水以水解它们以沉淀硅酸盐水合物; 将硅酸盐水合物分散在含有锰和锌的前体水溶液中，并向该溶液中加入草酸溶液以将该组分共沉淀为草酸盐; 并干燥共沉淀物并在1000-1100℃的温度下加热。 优选在加入草酸溶液后将溶液的pH调节至7-8; 和/或共沉淀物在加热后在还原条件下在800-900℃的温度下进一步加热。

公开(公告)号：KR1020030046986A

公开(公告)日：2003-06-18

申请号：KR1020010077333

申请日：2001-12-07

Applicant: 한국화학연구원

Inventor： 정하균 ,  박희동 ,  김창해 ,  성부용

IPC: C09K11/59

CPC classification number: C09K11/595 ,  C01P2002/70 ,  C01P2004/03 ,  H01J2211/42 ,  Y02B20/181

Abstract: PURPOSE: A vacuum UV excited green fluorescent substance and its preparation method are provided, wherein the fluorescent substance shows excellent luminance and dispersibility, reduced aggregation and a uniform spherical shape and is useful for preparing a plasma display panel. CONSTITUTION: The vacuum UV excited green fluorescent substance is represented by the formula: (Zn(1-x)Mnx)O·ySiO2, wherein 0.005

Abstract translation: 目的：提供一种真空紫外激发绿色荧光物质及其制备方法，其中荧光物质具有优异的亮度和分散性，减少的聚集和均匀的球形，并且可用于制备等离子体显示面板。 构成：真空UV激发的绿色荧光物质由下式表示：（Zn（1-x）Mn x）O·ySiO 2，其中0.005 <= x <= 0.16且1.6 <= y <= 2.5。 该方法包括以下步骤：将乙醇与原硅酸四乙酯混合，并向混合物中加入液氨和水以水解它们以沉淀硅酸盐水合物; 将硅酸盐水合物分散在含有锰和锌的前体水溶液中，并向溶液中加入草酸溶液以将组分共沉淀成草酸盐; 并干燥共沉淀物并在1000-1100℃的温度下加热。 优选在加入草酸溶液后将溶液的pH调节至7-8; 和/或共沉淀物在加热后的还原条件下在800-900℃的温度下进一步加热。

公开(公告)号：KR100293330B1

公开(公告)日：2001-06-15

申请号：KR1019990018916

申请日：1999-05-25

Applicant: 한국화학연구원

Inventor： 정하균 ,  성부용 ,  박희동

IPC: C09K11/54

CPC classification number: C09K11/595 ,  C09K11/646

Abstract: 본발명은오르토규산아연계녹색발광형광체의새로운제조방법에관한것으로서, 더욱상세하게는전자선에의하여여기되어가시영역에서발광스펙트럼을나타내는 ZnSiO: Mn 녹색발광형광체를제조함에있어서, 사에틸오르토규산(TEOS)을에탄올에희석하고염기촉매및 물을첨가하여가수분해시켜서여과한후에, 이여과물을아연및 망간성분을함유한용액과함께분산시키고옥살산또는옥살산염을가하여아연및 망간성분을그의옥살산염으로침전시켜얻은혼합침전물을건조후 공기및 환원분위기중에서열처리하여형광체분말을제조하는일명 '균일침전법'을채용함으로써, 제조된형광체분말의입자크기가균일하고미세하며입자모양이이상적인구상(球狀)으로분말에응집성이적고, 활성제인망간의균일한분포로종래의제조방법에의해제조된형광체에비교하여발광강도가매우우수하므로각종디스플레이산업등에광범위하게이용될수 있는 ZnSiO: Mn 녹색발광형광체의새로운제조방법에관한것이다.