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公开(公告)号：KR100424864B1
公开(公告)日：2004-03-27
申请号：KR1020010024030
申请日：2001-05-03
Applicant: 한국화학연구원
IPC: C09K11/85
Abstract: PURPOSE: A gadolinium oxybromide(GdOBr)-based green fluorescent substance and its preparation method are provided, to allow the substance to maintain the stable properties even at high vacuum and to improve the luminous brightness at a low velocity electron ray by employing terbium as an activator. CONSTITUTION: The gadolinium oxybromide-based green fluorescent substance is represented by Gd(2-x)OBr: Tbx, wherein 0.001
Abstract translation: 目的：提供一种基于钆溴化钆（GdOBr）的绿色荧光物质及其制备方法，以使该物质即使在高真空下也能保持稳定的性能，并通过采用铽作为一种低速电子射线来提高发光亮度 活化剂。 构成：基于氧溴化钆的绿色荧光物质由Gd（2-x）OBr：Tbx表示，其中0.001≤x≤0.5。 该方法包括：基于氧化钆的量，混合氧化钆（Gd 2 O 3），溴化铵（NH 4 Br）和0.001-0.5摩尔％的氧化铽（Tb 4 O 7） 在100-150℃的温度下干燥混合物; 在还原气氛下在800〜1500℃的温度下烧结干燥后的混合物。 还原气氛优选通过使用2-25体积％的氢气混合物获得。 基于溴化铵的量，混合物优选还包含0.001-0.5摩尔％的溴化钾（KBr）。
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公开(公告)号：KR100424861B1
公开(公告)日：2004-03-27
申请号：KR1020010076239
申请日：2001-12-04
Applicant: 한국화학연구원
IPC: C09K11/77
Abstract: PURPOSE: A method for preparing a spherical boron oxide-based red fluorescent substance by hydrolysis is provided, to enable a single phase of fluorescent substance at a relatively low temperature to be prepared compared with that of existing solid method, with using a smaller amount of expensive rare earth metals. CONSTITUTION: The method comprises the steps of adding tetraethylorthosilicate, liquid ammonia and water to ethyl alcohol and mixing the mixture to precipitate silicic acid hydrate; dispersing the silicic acid hydrate in a precursor aqueous solution comprising Y, Gd, Eu, B and urea, and hydrolyzing the solution at 70-90 deg.C to adjust pH to be 5-10 for precipitating basic carbonate and hydroxide; and filtering and drying the basic carbonate and hydroxide and heating the dried one at 800-1,100 deg.C to prepare a spherical boron oxide-based red fluorescent substance represented by (Y1-x-yGdx)BO3:Eu, wherein 0
Abstract translation: 目的：提供一种通过水解制备球形氧化硼基红色荧光物质的方法，与现有固体方法相比，可以制备较低温度下的单相荧光物质，使用较少量的 昂贵的稀土金属。 组成：该方法包括以下步骤：将正硅酸乙酯，液氨和水加入乙醇中并混合以沉淀硅酸水合物; 将硅酸水合物分散在包含Y，Gd，Eu，B和尿素的前体水溶液中，并在70-90℃水解该溶液以调节pH为5-10以沉淀碱式碳酸盐和氢氧化物; 过滤并干燥碱式碳酸盐和氢氧化物，并在800〜1100℃下加热干燥的碳酸氢盐以制备由（Y1-x-yGdx）BO3：Eu表示的球形氧化硼基红色荧光物质，其中0 <= x < ; = 1.0和0.01 <= y <= 0.2。
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公开(公告)号：KR1020040019205A
公开(公告)日：2004-03-05
申请号：KR1020020050877
申请日：2002-08-27
Applicant: 한국화학연구원
IPC: C09K11/80
CPC classification number: C09K11/7706 , C01P2004/03 , C01P2004/60 , C04B35/6267 , C04B2235/3418 , C09K11/7774 , C09K11/7792 , H05B33/14 , Y02B20/181
Abstract: PURPOSE: A silicate-based fluorescent substance, its preparation method and a plasma display or light emitting lamp containing the fluorescent substance in a light emitting layer are provided, to improve luminescent efficiency and to prevent coagulation. CONSTITUTION: The silicate-based fluorescent substance is a spherical green light emitting fluorescent substance represented by Zn2-xSi1-y-zO4:MnxDyLiz (wherein D is at least one selected from the group consisting of Ba, Mg, Gd and Al, 0.001
Abstract translation: 目的：提供一种硅酸盐系荧光体及其制备方法以及在发光层中含有荧光物质的等离子显示器或发光灯，以提高发光效率，防止凝结。 构成：硅酸盐系荧光体是由Zn2-xSi1-y-zO4：MnxDyLiz（其中D是选自Ba，Mg，Gd和Al中的至少一种，0.001， = x <0.2,0 <= y <0.008,0 <= z <0.008，z为0的D为Ba或Mg）或由Y2-xSiO5：Mx表示的球形钇硅酸盐基荧光物质（其中M为 选自Tb，Ce和Eu中的至少一种，0
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公开(公告)号：KR100419859B1
公开(公告)日：2004-02-25
申请号：KR1020010015232
申请日：2001-03-23
Applicant: 한국화학연구원
IPC: C09K11/02
Abstract: PURPOSE: A method for preparing a spherical red fluorescent substance and a spherical red fluorescent substance prepared by the method are provided, which fluorescent substance has no hollow in the inside and whose spherical shape is maintained uniformly after heating. CONSTITUTION: The spherical red fluorescent substance is represented by (YxGd(1-x-y))(2-z)BzO3 : Euy, wherein z is 0 or 1; 0
Abstract translation: 目的：提供一种制备球形红色荧光物质和由该方法制备的球形红色荧光物质的方法，该荧光物质在内部没有空洞，加热后其球形保持均匀。 构成：球形红色荧光物质由（YxGd（1-x-y））（2-z）BzO3：Euy表示，其中z为0或1; 0℃; = X＆LT; = 1; 并且0.005≤y≤0.5。 该方法包括以下步骤：将构成荧光物质体的前体材料，掺杂该体的活化剂前体材料和形成聚合物材料的柠檬酸和乙二醇溶解到蒸馏水或乙醇中，以制备0.02-3M荧光颗粒前体 解; 将前体溶液注入喷雾装置中以产生0.1-100微米的液滴; 并将液滴注入200-1,500℃的反应器中以制备荧光物质粉末并加热所得粉末。 优选地，加热过程在800-1,500℃的温度下进行1-5小时。
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公开(公告)号：KR1020030086117A
公开(公告)日：2003-11-07
申请号：KR1020020024490
申请日：2002-05-03
Applicant: 한국화학연구원
IPC: C09K11/80
CPC classification number: C09K11/7769 , C09K11/7768 , C09K11/7774 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: Provided is a terbium activated green fluorescence material for vacuum ultraviolet excitation, which is excited by radiating vacuum ultraviolet rays, has short afterglow time and excellent brightness, and can be used for plasma display panels(PDP). CONSTITUTION: The terbium activated green fluorescence material represented by the formula AB1-xC3O7:Tbx is produced by adding the terbium as an active agent to AB1-xC3O7 matrix, wherein A is Ca, Sr, or a mixture thereof, B is Y, La, Gd, or a mixture thereof, C is Al, Ga, or a mixture thereof, and x is the range of 0.005
Abstract translation: 目的：提供一种用于真空紫外线激发的铽激活绿色荧光材料，其通过辐射真空紫外线激发，具有短的余辉时间和优异的亮度，并且可用于等离子体显示面板（PDP）。 构成：通过将铽作为活性剂加入到AB1-xC3O7基质中，其中A是Ca，Sr或其混合物，B是Y，La，由AB1-xC3O7：Tbx表示的铽激活的绿色荧光材料 ，Gd或其混合物，C为Al，Ga或其混合物，x为0.005
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Patent Agency Ranking
公开(公告)号：KR1020030083839A
公开(公告)日：2003-11-01
申请号：KR1020020022024
申请日：2002-04-22
Applicant: 한국화학연구원
CPC classification number: C09K11/7787 , C01P2004/03 , C01P2004/60 , C01P2004/64 , C04B35/6267 , C04B2235/3224 , Y02B20/181
Abstract: PURPOSE: A method for preparing a nanosized red fluorescent substance and a nanosized red fluorescent substance prepared by the method are provided, to improve the luminous efficiency and the distribution of particle size. CONSTITUTION: The method comprises the steps of dissolving one selected from an yttrium compound, a gadolinium compound or their mixture, an europium compound, an organic acid and polyol for forming a polymer, and a flux to a solvent to prepare a fluorescent substance precursor solution; injecting the precursor solution into a spray device to form aerosol with a diameter of 0.1-100 micrometers; drying and thermally decomposing the aerosol to prepare a fluorescent substance powder, and heating the obtained powder. The nanosized red fluorescent substance is represented by (Y1-xGdx)2O3:Euy, wherein 0
Abstract translation: 目的：提供一种制备纳米尺度红色荧光物质的方法和通过该方法制备的纳米尺寸红色荧光物质，以提高发光效率和粒径分布。 方法：该方法包括将选自钇化合物，钆化合物或其混合物，铕化合物，有机酸和用于形成聚合物的多元醇中的一种溶解到溶剂中以制备荧光物质前体溶液的步骤 ; 将前体溶液注入喷雾装置以形成直径为0.1-100微米的气溶胶; 干燥并热分解气溶胶以制备荧光物质粉末，并加热所得粉末。 纳米尺度的红色荧光物质由（Y1-xGdx）2O3：Euy表示，其中0 <= x <= 1且0.001 <= y <0.5。 优选地，助熔剂是选自Na 2 CO 3，KCl，NaCl，LiCl，Li 2 CO 3，K 2 CO 3和KBr中的任一种。
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公开(公告)号：KR100394078B1
公开(公告)日：2003-08-06
申请号：KR1020000079928
申请日：2000-12-21
Applicant: 한국화학연구원
IPC: C09K11/08
Abstract: PURPOSE: Provided is a process for producing halophosphate-based phosphor powder by spray pyrolysis, which can produce uniform and perfect spherical powder having a high brightness. CONSTITUTION: The process comprises the steps of: preparing a 0.02-2M precursor solution of the phosphor powder by dissolving the precursor of a phosphor matrix and the precursor of an active agent doping the matrix in distilled water or alcohol; generating droplets with a diameter of 0.1-100 micrometer by injecting the precursor solution into a spray device; producing the halophosphate-based phosphor powder(formula: M5(PO4)3Cl:D) by injecting the generated droplets into a reactor with a temperature of 200-1500deg.C; additionally, post-treating the obtained phosphor powder(formula: M5(PO4)3Cl:D) at a temperature of 800-1500deg.C for 1-5 hours in the air or reduced gas. In the formula, M is at least one selected from the 2A or 2B group metal in the periodic table and D is Eu or Mn.
Abstract translation: 目的：提供一种通过喷雾热解生产卤磷酸盐基荧光粉的方法，该方法能够产生均匀和完美的高亮度球形粉末。 构成：该方法包括以下步骤：通过溶解荧光体基质的前体和将基质掺入蒸馏水或醇中的活性剂的前体制备荧光粉的0.02-2M前体溶液; 通过将前体溶液注入喷雾装置中产生直径为0.1-100微米的液滴; 通过将生成的液滴注入温度为200-1500℃的反应器中，生产卤磷酸盐基荧光粉（式：M5（PO4）3Cl：D） 另外，在空气或还原气体中，在800-1500℃的温度下对获得的荧光粉（式：M5（PO4）3Cl：D）进行后处理1-5小时。 在该式中，M是周期表中选自2A或2B族金属中的至少一种，D是Eu或Mn。
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公开(公告)号：KR1020030064099A
公开(公告)日：2003-07-31
申请号：KR1020020004542
申请日：2002-01-25
Applicant: 한국화학연구원
IPC: C09K11/74
CPC classification number: C09K11/7709 , C09K11/7708 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: A YRO4-based (R is As, Nb, P, V) blue fluorescent substance for a plasma display panel and its preparation method are provided, wherein the blue fluorescent substance has an excellent luminance efficiency at VUV and a good color purity and the luminance intensity of blue fluorescent substance can be controlled according to the composition of an activator and the composition. CONSTITUTION: The YRO4-based blue fluorescent substance is represented by Y(NbmP1-m-nVn)O4, wherein 0.02
Abstract translation: 目的：提供一种用于等离子体显示面板的YRO4基（R为As，Nb，P，V）蓝色荧光物质及其制备方法，其中蓝色荧光物质在VUV下具有优异的发光效率和良好的色纯度， 可以根据活化剂的组成和组成控制蓝色荧光物质的亮度强度。 构成：基于YRO4的蓝色荧光物质由Y（NbmP1-m-nVn）O4表示，其中0.02
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公开(公告)号：KR100379759B1
公开(公告)日：2003-04-11
申请号：KR1020000070564
申请日：2000-11-24
Applicant: 한국화학연구원
IPC: B01J2/06
Abstract: PURPOSE: Provided is a gas phase combinatorial chemistry synthetic device which synthesizes the powder of phosphors according to the composition ratio simply and continuously, controlled by a computer. The ratio of the composition is controlled by the changing quantity of the spraying solution. The device makes the synthesis fast and enables the low cost detection, in reduced time, of the composition ratio of dielectric materials, magnetic substances, material for electrodes and catalysts. CONSTITUTION: The device comprises: several solution storage tanks(1) which keep a certain quantity of various metal ion solution such as metal nitrate, metal acetate and metal chelate; a delivery pipe, a revolving speed induction motor which is computer controlled, and a solution introducing equipment which is composed of a pump head with the delivery pipe introducing a certain amount of different metal ion solution at the same time with a certain speed and time to suit each composition ratio; a high temperature tube reactor(4) or a spray equipment of air nozzle or micro wave nozzle which sprays solution as liquid into a flame reactor; a high temperature tube vapor reaction reactor with 1-2 meter length or flame reactor equipped with quarts tube or ceramic tube; a detector(5) which detects the existence or non-existence of powder and controls the operation of powder recovery equipment; a filter connected to a vacuum pump(7) and a continuous powder collecting equipment(6) composed of revolving belt with the filter which is controlled by a computer; a recovery equipment(8) for waste solution and waste powder which are not collected; and a computer(9) controlling the whole device.
Abstract translation: 用途：提供了一种气相组合化学合成装置，它根据组成比率简单和连续地合成荧光粉粉末，由计算机控制。 组合物的比例由喷雾溶液的变化量来控制。 该装置使合成快速并且能够在较短时间内检测介电材料，磁性物质，电极材料和催化剂的组成比的低成本检测。 该装置包括：多个溶液储罐（1），其保持一定量的各种金属离子溶液，如金属硝酸盐，金属乙酸盐和金属螯合物; 输送管，计算机控制的转速感应电机，以及由泵头和输送管构成的溶液输入装置，该输送管以一定的速度和时间同时将一定量的不同金属离子溶液引入 适合每种成分比例; 高温管式反应器（4）或将液体溶液喷入火焰反应器的空气喷嘴或微波喷嘴喷雾设备; 长度为1-2米的高温管式蒸气反应器或装有石英管或陶瓷管的火焰反应器; 检测器（5），其检测粉末的存在或不存在并控制粉末回收设备的操作; 一个与真空泵连接的过滤器和一个由旋转皮带组成的连续粉末收集设备，所述过滤器由计算机控制; 未收集废液和废粉的回收设备（8）; 和控制整个装置的计算机（9）。
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公开(公告)号：KR100376274B1
公开(公告)日：2003-03-17
申请号：KR1020000055240
申请日：2000-09-20
Applicant: 한국화학연구원
IPC: C09K11/63
Abstract: PURPOSE: A method for preparing a boron oxide-based red fluorescent substance (Y, Gd)BO3:Eu is provided to lower the reaction temperature and to improve the brightness, wherein the fluorescent substance is useful to a plasma display panel. CONSTITUTION: The method comprises the steps of dropping an aqueous mixture comprising an yttrium compound, a gadolinium compound, an europium compound and boric acid and a basic solution selected from an inorganic base and an organic base into a blank solution to coprecipitate the rare-earth metal with maintaining pH to be 7-9; filtering the solution and drying the filtrate; and heating the dried one at 600-1,100 deg.C in air. Preferably the blank solution is at least one selected from the group consisting of distilled water, methanol, ethanol, 1-propyl alcohol and isopropyl alcohol; the yttrium compound is at least one selected from the group consisting of yttrium nitrate, yttrium chloride and yttrium acetate; the gadolinium compound is at least one selected from the group consisting of gadolinium nitrate, gadolinium chloride and gadolinium acetate; the europium compound is at least one selected from the group consisting of europium nitrate, europium chloride and europium acetate; the inorganic base is at least one selected from the group consisting of NH4OH, NaOH and KOH; and the organic base is at least one selected from the group consisting of diethyl amine, diethanol amine and triethyl amine.
Abstract translation: 目的：提供一种制备氧化硼基红色荧光物质（Y，Gd）BO3：Eu的方法以降低反应温度并改善亮度，其中荧光物质可用于等离子体显示板。 组成：该方法包括以下步骤：将包含钇化合物，钆化合物，铕化合物和硼酸的含水混合物和选自无机碱和有机碱的碱性溶液滴加到空白溶液中以使稀土共沉淀 保持pH值为7-9的金属; 过滤溶液并干燥滤液; 并在空气中在600-1100℃下加热干燥的。 优选空白溶液为选自蒸馏水，甲醇，乙醇，1-丙醇和异丙醇中的至少一种; 钇化合物是选自硝酸钇，氯化钇和乙酸钇中的至少一种; 钆化合物是选自硝酸钆，氯化钆和乙酸钆中的至少一种; 铕化合物是选自硝酸铕，氯化铕和乙酸铕中的至少一种; 无机碱为选自NH 4 OH，NaOH和KOH中的至少一种; 并且有机碱是选自二乙胺，二乙醇胺和三乙胺中的至少一种。
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