公开(公告)号：KR100336973B1

公开(公告)日：2002-05-17

申请号：KR1019990038203

申请日：1999-09-08

Applicant: 한국화학연구원

Inventor： 박희동 ,  류호진 ,  박정규

IPC: C09K11/08

CPC classification number: C09K11/7703

Abstract: 본발명은저전압용티탄산스트론튬계적색형광체및 이의제조방법에관한것으로서, 더욱상세하게는티탄산스트론튬(SrTiO)을모체로하는적색형광체에있어활성제로염화프라세오디움을첨가하고, 공부활제로수산화알루미늄과산화갈륨을첨가함으로써, 저속전자선에서발광휘도와색순도가우수하고고진공에서도안정한물성을가지며, 특히저전압전자선여기에의해구동하는전계방출디스플레이(Field Emission Displays, FEDs)에적합하도록고휘도를갖는다음화학식 1로표시되는저전압용티탄산스트론튬계적색형광체및 이의제조방법에관한것이다. 상기화학식 1에서 : 0.0005≤a≤0.01, 0

公开(公告)号：KR1020020022457A

公开(公告)日：2002-03-27

申请号：KR1020000055240

申请日：2000-09-20

Applicant: 한국화학연구원

Inventor： 정하균 ,  김경남 ,  박희동

IPC: C09K11/63

CPC classification number: C09K11/774 ,  C01P2002/70 ,  C01P2004/03 ,  C04B35/6267 ,  Y02B20/181

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，以降低反应温度并提高亮度，其中荧光物质可用于等离子体显示面板。 构成：该方法包括将包含钇化合物，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共沉淀稀土 保持pH值为7-9的金属; 过滤溶液并干燥滤液; 并在600-1100℃的空气中加热干燥的。 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。 无机碱是选自NH 4 OH，NaOH和KOH中的至少一种; 有机碱为选自二乙胺，二乙醇胺，三乙胺中的至少一种。

公开(公告)号：KR1020020022455A

公开(公告)日：2002-03-27

申请号：KR1020000055238

申请日：2000-09-20

Applicant: 한국화학연구원

Inventor： 정하균 ,  김경남 ,  박희동

IPC: C09K11/64

CPC classification number: C09K11/7734 ,  C01P2004/03 ,  C09K11/7731 ,  H01J11/42 ,  H01J2211/42 ,  Y02B20/181

Abstract: PURPOSE: A method for preparing a spherical aluminate-based blue fluorescent substance BaMgAl10O17:Eu is provided to obtain a fine spherical material without ball-milling at a lower temperature, wherein the substance can be applied to a PDP. CONSTITUTION: The method comprises the steps of adding an aluminium compound, a hydroxypropyl cellulose dispersant with a molecular weight of 100,000 and a urea precipitating agent to a solution mixture of water and alcohol in the ratio of 1:3-7 by volume, and hydrolyzing it to obtain an aluminium precipitate; dispersing the aluminium precipitate into an aqueous mixture solution containing barium, magnesium and europium; adding oxalic acid to the dispersion solution and controlling pH to be 6-9 with a basic solution to precipitate aluminium, barium, magnesium and europium; filtering and drying the precipitate; and calcining the dried one at 1,100-1,400 deg.C in air and heating the calcined one at 1,000-1,200 deg.C under a reductive atmosphere by using 25% H2/N2 gas. Preferably the alcohol is at least one selected from the group consisting of 1-propyl alcohol and isopropyl alcohol.

Abstract translation: 目的：提供一种制备球形铝酸盐系蓝色荧光物质BaMgAl10O17：Eu的方法，以在较低温度下不进行球磨而获得细小球形物质，其中该物质可应用于PDP。 方案：该方法包括以1：3-7体积比的比例将铝化合物，分子量为100,000的羟丙基纤维素分散剂和尿素沉淀剂加入到水和醇的溶液混合物中，并水解 得到铝沉淀物; 将铝沉淀物分散到含有钡，镁和铕的含水混合物溶液中; 向分散液中加入草酸，用碱性溶液控制pH至6-9，使铝，钡，镁和铕沉淀; 过滤并干燥沉淀物; 并将空气中的干燥物料在1100-1400℃下煅烧，并在还原气氛下，使用25％H 2 / N 2气体在1000-1200℃下加热煅烧的。 醇优选为选自1-丙醇和异丙醇中的至少一种。

公开(公告)号：KR1020020006193A

公开(公告)日：2002-01-19

申请号：KR1020000039701

申请日：2000-07-11

Applicant: 한국화학연구원

Inventor： 박희동 ,  김창해 ,  손기선

IPC: G01N21/64

Abstract: PURPOSE: A combinatorial chemistry synthesizing device for fluorescent substance search and a fluorescent characteristic measuring device are provided to manufacture the fluorescent substances with uniform composition by producing metal oxide precursors of the fluorescent substances from solutions and manufacture the fluorescent substance in the condition of powder by carrying out heat treatment immediately after synthesizing the precursors by using cell reactors formed of ceramic. CONSTITUTION: A combinatorial chemistry synthesizing device for searching fluorescent substances includes a plurality of solution storing units(10) for storing solutions of various compositions by predetermined amounts, solution injection units(20) for injection the solutions of a predetermined concentration by using a motor controlled by a computer, a plurality of cell reactors(30) including cells disposed with predetermined distance in every direction and a plate(40) for stacking the cell reactors, and a position controlling unit(50) for moving the position of the plate including the cell reactors in every direction precisely under the control of the computer.

Abstract translation: 目的：提供用于荧光物质检索的组合化学合成装置和荧光特征测量装置，以通过从溶液中制备荧光物质的金属氧化物前体制备具有均匀组成的荧光物质，并通过携带来制造粉状条件下的荧光物质 在通过使用由陶瓷形成的电池反应器合成前体后立即进行热处理。 构成：用于搜索荧光物质的组合化学合成装置包括多个用于存储预定量的各种组成溶液的溶液储存单元（10），用于通过使用电机控制的方式注入预定浓度的溶液的溶液注入单元（20） 通过计算机，包括在每个方向上以预定距离布置的单元的多个单元电抗器（30）和用于堆叠单元电抗器的板（40），以及位置控制单元（50），用于使包括 电池在每个方向正好在电脑的控制下。

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。

公开(公告)号：KR100293332B1

公开(公告)日：2001-06-15

申请号：KR1019990014278

申请日：1999-04-21

Applicant: 한국화학연구원

Inventor： 박희동 ,  한정화 ,  김현정

IPC: C09K11/63

Abstract: 본발명은저전압용니오브산이트륨(YNbO)계청색형광체의제조방법에관한것으로서, 더욱상세하게는형광체모체인니오브산이트륨에부활제로산화비스무스(BiO)를도핑하고, 산화붕소를융제로사용하여열처리온도를낮춤으로써, 입자형태조절을용이하게하여저속전자관에서발광효율이뛰어나고고진공에서도안정한물성을가지며새로운전계방출디스플레이(field emission display, FED)에적합한다음화학식 1로표시되는저전압용니오브산이트륨계청색형광체의제조방법에관한것이다. 상기화학식 1에서 0.80≤a≤1.10 이고, 0.001≤b≤0.05 이다.

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.

公开(公告)号：KR1020010026774A

公开(公告)日：2001-04-06

申请号：KR1019990038203

申请日：1999-09-08

Applicant: 한국화학연구원

Inventor： 박희동 ,  류호진 ,  박정규

IPC: C09K11/08

CPC classification number: C09K11/7703

Abstract: PURPOSE: A red fluorescent body of strontium titanic acid(SrTiO3) used for low-voltage condition is provided which has an excellent color purity, stability even under the high vacuum pressure, and in particular high luminescence so as to be suitably used in a field emission displays(FEDs), by comprising praseodymium chloride as an activator and aluminium hydroxide or gallium oxide as a co-activator in a red fluorescent body having a strontium titanic acid as a parent body. CONSTITUTION: A red fluorescent body of strontium titanic acid is produced by: adding praseodymium chloride as an activator and aluminium hydroxide(Al(OH)3) or gallium oxide(Ga2O3) as a co-activator to strontium titanic acid, which comprises strontium carbonate and titanium dioxide as a fluorescent material; mixing and drying them well; and sintering the resulted mixture at 1000-1400 deg.C and grinding it. Thus produced fluorescent body having high luminescence is suitably used for a field emission displays operated by excitation with low voltage electric rays.

Abstract translation: 目的：提供用于低电压条件的锶钛酸锶（SrTiO3）的红色荧光体，即使在高真空压力下也具有优异的色纯度，稳定性，特别是高发光度，以适用于现场 发光显示器（FED），其包含氯化镨作为活化剂，氢氧化铝或氧化镓作为共活化剂，在具有钛酸锶作为母体的红色荧光体中。 构成：钛酸锶的红色荧光体通过以下方式制备：将氯化镨作为活化剂和氢氧化铝（Al（OH）3）或氧化镓（Ga 2 O 3）作为助催化剂加入到钛酸锶中，钛酸锶包括碳酸锶 和二氧化钛作为荧光材料; 混合并干燥好; 并将所得混合物在1000-1400℃下烧结并研磨。 因此，具有高发光性的荧光体适合用于通过低压电光激发而进行的场发射显示。

公开(公告)号：KR1020000025940A

公开(公告)日：2000-05-06

申请号：KR1019980043244

申请日：1998-10-15

Applicant: 한국화학연구원

Inventor： 박희동 ,  류호진 ,  박정규

IPC: C09K11/77 ,  C09K11/08

CPC classification number: C09K11/7769 ,  C04B35/50 ,  C04B35/62655 ,  C04B35/64 ,  C04B2235/3232 ,  Y02B20/181

Abstract: PURPOSE: A red color phosphor prepared by adding aluminum hydroxide and praseodymium to lanthanum titanate is provided which has a high luminance and excellent color purity at a low velocity electron tube and stable physical properties under high vacuum. CONSTITUTION: A lanthanum titanate red color fluorescent body of the formula;La2TixOy:aPr,bAl is prepared by mixing as a matrix lanthanum titanate with praseodymium(Pr) and aluminum hydroxide(Al) in a molar ration of Pr/Al of 0.001 : 0.02-0.03 : 0.23, drying and calcining at 1,100-1,500°C. In formula, x is greater than or equal 2 less than or equal 3, y is greater than or equal 7 less than or equal 9,a is greater than or equal 0.0005 less than or equal 0.0004, b is greater than 0 less than 0.3. The phosphor has a high luminance suitable to a field emission display(FED) under excitation with low velocity electron beam having an acceleration voltage as low as 1KV or less.

Abstract translation: 目的：提供通过向钛酸镧中加入氢氧化铝和镨制备的红色荧光粉，其在低速电子管下具有高亮度和优异的色纯度，在高真空下具有稳定的物理性能。 构成：钛酸镧红色荧光体，其配方为La2TixOy：aPr，bAl，通过混合为镧（Pr）和氢氧化铝（Al）的镧钛酸镧与Pr / Al摩尔比为0.001：0.02 -0.03：0.23，干燥并在1100-1,500℃下煅烧。 在式中，x大于或等于2小于或等于3，y大于或等于7小于或等于9，a大于或等于0.0005小于或等于0.0004，b大于0小于0.3 。 在具有低至1KV或更低的加速电压的低速电子束的激发下，荧光体具有适合于场发射显示（FED）的高亮度。

公开(公告)号：KR1020000021095A

公开(公告)日：2000-04-15

申请号：KR1019980040033

申请日：1998-09-25

Applicant: 한국화학연구원

Inventor： 손기선 ,  박희동 ,  조봉현

IPC: C09K11/54 ,  C09K11/59

CPC classification number: C09K11/595 ,  C04B35/14 ,  C04B35/64 ,  C04B2235/3418 ,  H01J11/42 ,  H01J2211/42 ,  Y02B20/181

Abstract: PURPOSE: A zinc silicate-based green fluorescent material doped with manganese oxide (Zn2-xSiO4: xMn) is provided by reduction with carbon powder which is excellent in fluorescence efficiency in the range of vacuum ultra violet rays(500-550nm) and a stability under high vacuum. CONSTITUTION: The process comprises the steps of; adding zinc oxide and silicon dioxide in a mole ratio of 2: 1 to manganese oxide as an inactive material having a molar ratio MnO/ ZnO of 0.001 to 0.2; sintering at 1100-1350°C for 2-24hrs. in air, followed by ball milling in the presence of aceton, and adding 5-20 wt.% of carbon powder with the size being 0.05-5 micron meter; reduction the mixed powder at 1100-1300°C for 1-2hrs. in nitrogen atmosphere, and a milling again. The prepared powder can be widely used for plasma display panel (PDP) due to short remaining light.

Abstract translation: 目的：通过在真空紫外线（500-550nm）范围内的荧光效率优异的碳粉还原，稳定性提供掺杂有氧化锰（Zn2-xSiO4：xMn）的硅酸锌基绿色荧光材料 在高真空下。 规定：该过程包括以下步骤： 以摩尔比为2:1的氧化锌和二氧化硅与MnO / ZnO的摩尔比为0.001〜0.2的作为惰性材料的氧化锰相比， 在1100-1350℃烧结2-24小时。 在空气中，然后在丙酮存在下进行球磨，并加入5-20重量％的尺寸为0.05-5微米的碳粉; 将混合粉末在1100-1300℃下还原1-2小时。 在氮气气氛中再次研磨。 由于剩余光短，所制备的粉末可广泛用于等离子体显示面板（PDP）。