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1. 发明授权

KR100397577B1 형광체 및 그의 제조방법 失效
标题翻译： 형광체및그의제조방법
公开(公告)号：KR100397577B1
公开(公告)日：2003-09-17
申请号：KR1020010015159
申请日：2001-03-23
申请人： 후다바 덴시 고교 가부시키가이샤
发明人： 카타오카후미아키 , 타무라키요시 , 사토요시타카 , 노무라유지
IPC分类号： C09K11/59
CPC分类号： C09K11/7774 , C09K11/025 , Y10T428/2991 , Y10T428/2993
摘要： The present invention provides a phosphor of formula A2SiO5:B (A is Y or Gd, and B is Ce or Tb) which is characterized by a surface elemental composition represented by (A+B)/Si ranging from 1.5 to 2.5, wherein A is Y or Gd, and B is Ce or Tb; and method for preparing said phosphor. One embodiment of the method is as follows: a SiO2 powder is mixed with co-precipitate (Y, Ce)2O3 (Ce/Y=0.01), in an amount ranging from 10 to 110 mol % based on the amount of (Y, Ce)2O3, and the mixture is charged into the inner crucible of a double-walled aluminum crucible. After graphite is charged between the inner and outer crucible, the mixture is calcined at 1450° C. for 2 hours to obtain an Y2SiO5:Ce phosphor. The luminous efficiency of a field emission display (FED) prepared employing the Y2SiO5:Ce phosphor was measured at an anode voltage of 600V, an electric power input of 30 Wp-p and a duty rate of 1/240. It is desirable that the relative amount of SiO2 based on the amount of (Y, Ce)2O3 ranges from 40 to 70 mol %, preferably 50 to 60 mol %.
摘要翻译：本发明提供了式（A + B）/ Si表示的表面元素组成为1.5-2.5的式A2SiO5：B（A为Y或Gd，B为Ce或Tb）的磷光体，其中A 是Y或Gd，B是Ce或Tb; 和制备所述磷光体的方法。该方法的一个实施方案如下：基于（Y，Y）的量计，SiO 2粉末与共沉淀物（Y，Ce）2 O 3（Ce / Y = 0.01）混合，其量为10-110mol％ Ce）2 O 3，并将该混合物装入双壁铝坩埚的内坩埚中。在内部和外部坩埚之间装入石墨后，将混合物在1450℃煅烧。 C 2小时以获得Y 2 SiO 5：Ce荧光粉。在600V的阳极电压，30Wp-p的电功率输入和1/240的占空比下测量使用Y 2 SiO 5：Ce荧光体制备的场发射显示器（FED）的发光效率。基于（Y，Ce）2 O 3的量的SiO 2的相对量优选为40-70摩尔％，优选50-60摩尔％。

2. 发明公开

KR1020010090733A 형광체 및 그의 제조방법 失效
标题翻译：荧光物质及其制造方法
公开(公告)号：KR1020010090733A
公开(公告)日：2001-10-19
申请号：KR1020010015159
申请日：2001-03-23
申请人： 후다바 덴시 고교 가부시키가이샤
发明人： 카타오카후미아키 , 타무라키요시 , 사토요시타카 , 노무라유지
IPC分类号： C09K11/59
CPC分类号： C09K11/7774 , C09K11/025 , Y10T428/2991 , Y10T428/2993
摘要： PURPOSE: To improve the life and luminous efficiency of a Y2SiO5:Ce fluorescent substance performing blue luminescence and capable of being used for an FED (field emission display). CONSTITUTION: In an A2SiO5:B (wherein A is Y or Gd; and B is Ce or Tb) fluorescent substance, an elemental composition ratio (A+B)/Si on the surface is set to be 1.5-2.5. For example, coprecipitated (Y, Ce)2O3 (wherein a ratio Ce/Y is fixed in such a way as to be 1 atom.%) with, an oxalate and SiO2 fine powder are used, charge stock wherein a composition ratio of SiO2 to (Y, Ce)2O3 is set to be 10-110% as a ratio between raw materials is satisfactorily compounded and is thrown into an inner crucible of an alumina double crucible, graphite is filled between the inner and outer crucibles and synthesis is carried out in a kiln. The Y2SiO5:Ce fluorescent substance is obtained by holding the temperature at 1,450deg.C for 2 hours. The luminous efficiency of the fluorescent substance layer is measured by making a FED made as a model using the fluorescent substance emit light under conditions that an anodic voltage is 600 V, input power is 30 Wp-p and a duty ratio is 1/240. The charge of SiO2 should be 40-70%, preferably 50-60%.
摘要翻译：目的：提高执行蓝色发光并能够用于FED（场发射显示）的Y2SiO5：Ce荧光物质的寿命和发光效率。构成：在A2SiO5：B（其中A为Y或Gd; B为Ce或Tb）的荧光物质中，表面上的元素组成比（A + B）/ Si为1.5-2.5。例如，使用草酸盐和SiO 2细粉末的共沉淀（Y，Ce）2 O 3（其中Ce / Y比率固定为1原子％），其中SiO 2的组成比至（Y，Ce）2 O 3为10〜10％，原料配比良好，投入到铝坩埚的内坩埚中，在内，外坩埚之间填充石墨，进行合成在窑里出来通过将温度保持在1450℃2小时获得Y2SiO5：Ce荧光物质。在阳极电压为600V，输入功率为30Wp-p，占空比为1/240的条件下，通过使用荧光体发光来制作作为模型的FED来测量荧光物质层的发光效率。 SiO 2的电荷应为40-70％，优选为50-60％。

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