JP2003041246A - Phosphor and manufacturing method therefor - Google Patents
Phosphor and manufacturing method thereforInfo
- Publication number
- JP2003041246A JP2003041246A JP2001230995A JP2001230995A JP2003041246A JP 2003041246 A JP2003041246 A JP 2003041246A JP 2001230995 A JP2001230995 A JP 2001230995A JP 2001230995 A JP2001230995 A JP 2001230995A JP 2003041246 A JP2003041246 A JP 2003041246A
- Authority
- JP
- Japan
- Prior art keywords
- phosphor
- metal compound
- srtio
- powder
- sio
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Luminescent Compositions (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、低い加速電圧で放
出される低速な電子線により励起されて蛍光を放出する
蛍光体の表面に保護部を被着させた蛍光体の製造方法お
よび蛍光体に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a phosphor in which a protective portion is attached to the surface of a phosphor which is excited by a low-speed electron beam emitted at a low acceleration voltage and emits fluorescence, and the phosphor. Regarding
【０００２】[0002]
【従来の技術】蛍光表示管などの加速電圧が低い電子線
励起発光素子では、アノード電圧が１０Ｖ以下でも発光
する蛍光体（低速電子線励起用蛍光体）が用いられてい
る。例えば、緑色に発光するＺｎＯ：Ｚｎ蛍光体が、こ
の種の蛍光体としてよく知られている。また、近年で
は、多色表示を可能とするため、様々な発光色が得られ
る蛍光体が開発されている。例えば、プラセオジム添加
チタン酸ストロンチウム（ＳｒＴｉＯ3：Ｐｒ）は、赤
色に発光する蛍光体であり、Ａｌを３０ｍｏｌ％ほど添
加することにより、輝度が向上することが知られてい
る。2. Description of the Related Art In an electron beam excitation light emitting device having a low acceleration voltage such as a fluorescent display tube, a phosphor that emits light even when an anode voltage is 10 V or less (a phosphor for low speed electron beam excitation) is used. For example, a ZnO: Zn phosphor that emits green light is well known as a phosphor of this type. Further, in recent years, in order to enable multicolor display, phosphors that can obtain various emission colors have been developed. For example, praseodymium-added strontium titanate (SrTiO 3 : Pr) is a phosphor that emits red light, and it is known that the brightness is improved by adding about 30 mol% of Al.
【０００３】しかしながら、これら蛍光体は、様々な原
因で輝度の劣化が発生している。輝度劣化（発光効率の
低下）の一因として、蛍光体の結晶歪み（格子欠陥）が
考えられている。例えば、蛍光体は、粉砕混合して微粒
子化して用いているが、粉砕の程度に伴って蛍光体粒子
中の格子欠陥が増加し、発光効率が低下し、寿命が短く
なることが知られている。このような格子欠陥による発
光効率の低下を抑制するために、酸化シリコンや酸化ア
ルミニウムの薄い膜で、蛍光体の表面を被覆する技術が
ある。However, these phosphors have deteriorated luminance due to various causes. Crystal distortion (lattice defect) of the phosphor is considered as one of the causes of the luminance deterioration (decrease in luminous efficiency). For example, phosphors are used by pulverizing and mixing into fine particles, and it is known that the lattice defects in the phosphor particles increase with the degree of pulverization, the luminous efficiency decreases, and the life becomes short. There is. In order to suppress the decrease in luminous efficiency due to such lattice defects, there is a technique of coating the surface of the phosphor with a thin film of silicon oxide or aluminum oxide.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、これら
の材料では、蛍光体と構成元素が異なっているため、多
くの場合格子定数が異なっている。この結果、ＳｉＯ2
やＡｌ2Ｏ3は、蛍光体の結晶粒子表面にファン・デル・
ワールス力だけで付着しているものと考えられ、これら
の材料は、蛍光体表面に強固に付着させることができな
いものと考えられる。このような弱い結合力で付着した
上記材料は、チャージアップなどによるクーロン反発力
により容易に移動することも考えられ、格子欠陥部分を
被覆するという役目を果たせない場合もある。例えば、
ＳｒＴｉＯ3：Ｐｒ,Ａｌ蛍光体は、酸化シリコンや酸化
アルミニウムの被覆では、発光効率の低下を抑制でき
ず、寿命を長くできないという問題があった。However, these materials have different lattice constants in many cases because the constituent elements are different from those of the phosphor. As a result, SiO 2
And Al 2 O 3 are van der
It is considered that they are adhered only by the Waals force, and it is considered that these materials cannot firmly adhere to the phosphor surface. It is considered that the above-mentioned material adhered with such a weak bonding force easily moves due to Coulomb repulsive force due to charge-up or the like, and it may not be able to fulfill the role of covering the lattice defect portion. For example,
The SrTiO 3 : Pr, Al phosphor has a problem that the coating of silicon oxide or aluminum oxide cannot suppress the decrease in luminous efficiency and thus cannot extend the life.
【０００５】本発明は、以上のような問題点を解消する
ためになされたものであり、蛍光体の輝度劣化をより抑
制できるようにすることを目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to make it possible to further suppress the luminance deterioration of the phosphor.
【０００６】[0006]
【課題を解決するための手段】本発明の一形態における
蛍光体の製造方法は、金属化合物からなる母体と発光中
心となる金属とからなる蛍光体の結晶粒子を用意し、こ
の蛍光体粒子表面に母体と同じ金属化合物からなる保護
部を被着させるようにしたものである。この製造方法に
よれば、蛍光体の結晶粒子表面に、蛍光体と格子定数や
結晶構造が同じ材料が保護膜として形成されることにな
り、保護部は蛍光体粒子表面に強固に付着するようにな
る。A method of manufacturing a phosphor according to one aspect of the present invention provides crystal particles of a phosphor composed of a matrix composed of a metal compound and a metal serving as an emission center, and the surface of the phosphor particle is prepared. A protective part made of the same metal compound as that of the base is applied to the base. According to this manufacturing method, a material having the same lattice constant and crystal structure as that of the phosphor is formed as a protective film on the crystal particle surface of the phosphor, so that the protective portion firmly adheres to the phosphor particle surface. become.
【０００７】本発明の一形態における蛍光体は、金属化
合物からなる母体と発光中心となる金属とからなる蛍光
体の結晶粒子と、この結晶粒子に被着された上記金属化
合物からなる保護部とから構成されたものである。この
蛍光体は、蛍光体の結晶粒子表面に、蛍光体と格子定数
や結晶構造が同じ材料が保護膜として形成されているこ
とになり、保護部は蛍光体粒子表面に強固に付着してい
る。The phosphor according to one aspect of the present invention includes crystal particles of a phosphor composed of a matrix composed of a metal compound and a metal serving as an emission center, and a protective portion composed of the metal compound adhered to the crystal particles. It is composed of In this phosphor, a material having the same lattice constant and crystal structure as the phosphor is formed on the crystal particle surface of the phosphor as a protective film, and the protective portion is firmly attached to the phosphor particle surface. .
【０００８】上述において、例えば、蛍光体をＳｒＴｉ
Ｏ3：Ｐｒ,Ａｌとし、金属化合物をＳｒＴｉＯ3として
もよく、また、蛍光体をＺｎ2ＳｉＯ4：Ｍｎとし、金属
化合物をＺｎ2ＳｉＯ4としてもよく、また、蛍光体をＹ
3Ａｌ5Ｏ12：Ｔｂとし、金属化合物をＹ3Ａｌ5Ｏ12とし
てもよく、また、蛍光体をＹ2Ｏ3：Ｅｕとし、金属化合
物をＹ2Ｏ3としてもよく、同様に、蛍光体をＧｄ2Ｏ3：
Ｅｕとし、金属化合物をＧｄ2Ｏ3としてもよい。In the above description, for example, the phosphor is SrTi.
O 3 : Pr, Al may be used as the metal compound SrTiO 3 , and the phosphor may be Zn 2 SiO 4 : Mn and the metal compound may be Zn 2 SiO 4 and the phosphor may be Y.
3 Al 5 O 12 : Tb, the metal compound may be Y 3 Al 5 O 12 , and the phosphor may be Y 2 O 3 : Eu, and the metal compound may be Y 2 O 3 ; The body is Gd 2 O 3 :
Eu may be used and the metal compound may be Gd 2 O 3 .
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施の形態につい
て説明する。
＜実施の形態１＞はじめに、本発明の第１の実施の形態
について説明する。まず、本実施の形態における蛍光体
の製造方法例について説明する。塩化ストロンチウムと
塩化チタンとを溶解した希塩酸水溶液（溶媒）に、Ｓｒ
ＴｉＯ3：Ｐｒ,Ａｌの粉末（複数の結晶粒子）１０ｇを
分散させ、これらを乾燥させて粉砕して粉末を得る。こ
のとき、ＳｒＴｉＯ3：Ｐｒ,Ａｌの１モルに対し、Ｓｒ
ＴｉＯ3が、１０-5〜０．０１モルの範囲となるように
する。なお、溶媒としては、希塩酸水溶液に限るもので
はなく、他の方法で弱酸性とした水溶液を用いるように
してもよく、また、アルコールなどを用いるようにして
も良い。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. <First Embodiment> First, a first embodiment of the present invention will be described. First, an example of a method for manufacturing the phosphor according to the present embodiment will be described. Sr is added to dilute hydrochloric acid aqueous solution (solvent) in which strontium chloride and titanium chloride are dissolved.
10 g of TiO 3 : Pr, Al powder (a plurality of crystal particles) is dispersed, dried and pulverized to obtain a powder. At this time, with respect to 1 mol of SrTiO 3 : Pr, Al,
TiO 3 should be in the range of 10 −5 to 0.01 mol. The solvent is not limited to the dilute hydrochloric acid aqueous solution, and an aqueous solution weakly acidified by another method may be used, or alcohol or the like may be used.
【００１０】以上のように粉砕により粉末を得た後、こ
の粉末をアルミナるつぼに入れ、空気中で焼成し、Ｓｒ
ＴｉＯ3：Ｐｒ,Ａｌの結晶粒子表面に、部分的にＳｒＴ
ｉＯ 3からなる保護部が形成された蛍光体を得る。この
ようにして製造した蛍光体は、従来よりあるＳｒＴｉＯ
3：Ｐｒ,Ａｌ蛍光体に比較し、同等以上の発光効率が得
られ、長寿命となる。After obtaining powder by crushing as described above,
Powder in an alumina crucible and baked in air to remove Sr
TiO3: SrT partially on the surface of Pr, Al crystal particles
iO 3A phosphor having a protective part made of is obtained. this
The phosphor manufactured in this way is a conventional SrTiO 3
3: Equivalent or better luminous efficiency than Pr, Al phosphor
And has a long life.
【００１１】前述したように、電子線などで励起して発
光させる蛍光体の輝度劣化は、蛍光体粒子表面の組成変
化などによって生じるものと考えられる。例えば、蛍光
体の結晶粒子表面の格子欠陥は、発光効率を低下させ輝
度劣化を引き起こす。従って、蛍光体の結晶粒子表面の
格子欠陥を保護膜などで被覆することができれば、格子
欠陥を要因とする輝度劣化を抑制できるようになる。As described above, it is considered that the deterioration of the brightness of the phosphor that is excited by an electron beam or the like to emit light is caused by a change in the composition of the phosphor particle surface. For example, lattice defects on the surface of the crystal grains of the phosphor lower the luminous efficiency and cause the deterioration of brightness. Therefore, if the lattice defects on the crystal grain surface of the phosphor can be covered with a protective film or the like, it becomes possible to suppress the luminance deterioration due to the lattice defects.
【００１２】本実施の形態の蛍光体によれば、蛍光体の
結晶粒子表面に蛍光体の母体を構成する材料（金属化合
物）からなる保護部を被着させるようにした。これは、
蛍光体の結晶粒子表面に、蛍光体と格子定数や結晶構造
が同じ材料を保護膜として形成することになり、上記保
護部は蛍光体粒子表面に強固に付着する。また、格子欠
陥などの劣化の基点となりうる部分には、結晶成長の起
点となって上記保護部が形成されるため、格子欠陥部分
を選択的に保護することも可能となる。According to the phosphor of the present embodiment, the protective portion made of the material (metal compound) forming the matrix of the phosphor is attached to the surface of the crystal particles of the phosphor. this is,
A material having the same lattice constant and crystal structure as the phosphor is formed on the surface of the crystal particles of the phosphor as a protective film, and the protective portion is firmly attached to the surface of the phosphor particles. Further, since the above-mentioned protective portion is formed as a starting point of crystal growth at a portion which can be a base point of deterioration such as a lattice defect, the lattice defect portion can be selectively protected.
【００１３】このように、本実施の形態によれば、蛍光
体の母体を構成する材料からなる保護部を、蛍光体粒子
表面に被着させるようにしたので、保護部が蛍光体粒子
表面の特に格子欠陥部分を覆って強固に付着した状態が
得られる。この結果、今実施の形態によれば、格子欠陥
を要因とする蛍光体の輝度劣化を、抑制できるようにな
る。As described above, according to the present embodiment, since the protective portion made of the material forming the matrix of the phosphor is adhered to the surface of the phosphor particle, the protective portion is formed on the surface of the phosphor particle. In particular, a state in which the lattice defect portion is covered and firmly attached is obtained. As a result, according to the present embodiment, it is possible to suppress the luminance deterioration of the phosphor due to the lattice defect.
【００１４】＜実施の形態２＞つぎに、本発明の他の形
態について説明する。本実施の形態では、つぎに示すよ
うにして、蛍光体の母体を構成する材料からなる保護部
が蛍光体粒子表面に被着された蛍光体を製造する。ま
ず、株式会社高純度化学研究所製のＳＴ−０６（６ｗｔ
％）を希釈液で希釈し、この溶液中にＳｒＴｉＯ3：Ｐ
ｒ,Ａｌの粉末を所定量混合する。ＳＴ−０６は、５５
０℃程度で焼成することで、ＳｒＴｉＯ3が得られる液
体材料である。<Second Embodiment> Next, another embodiment of the present invention will be described. In the present embodiment, as described below, a phosphor in which a protective portion made of a material forming the matrix of the phosphor is attached to the surface of the phosphor particles is manufactured. First, ST-06 (6 wt.
%) Was diluted with a diluent, and SrTiO 3 : P was added to this solution.
A predetermined amount of r and Al powders are mixed. ST-06 is 55
SrTiO 3 is a liquid material that can be obtained by firing at about 0 ° C.
【００１５】ＳＴ−０６の希釈液にＳｒＴｉＯ3：Ｐｒ,
Ａｌの粉末を混合したら、この液を乾燥させ、得られた
固体を粉砕して粉末を得る。得られた粉末を、アルミナ
るつぼに入れ、空気中で５００〜１３００℃で焼成し、
ＳｒＴｉＯ3：Ｐｒ,Ａｌの結晶粒子表面に、部分的にＳ
ｒＴｉＯ3が形成された蛍光体を得る。このようにして
得られた蛍光体においても、前述した実施の形態と同様
に、従来よりあるＳｒＴｉＯ3：Ｐｒ,Ａｌ蛍光体に比較
し、同等以上の発光効率が得られ、長寿命となる。The diluted solution of ST-06 contains SrTiO 3 : Pr,
After mixing the Al powder, the liquid is dried, and the obtained solid is ground to obtain a powder. The obtained powder is put into an alumina crucible and fired at 500 to 1300 ° C. in air,
SrTiO 3 : Pr, Al crystal grains are partially S
A phosphor in which rTiO 3 is formed is obtained. Also in the phosphor obtained in this manner, as in the above-described embodiment, as compared with the conventional SrTiO 3 : Pr, Al phosphor, the luminous efficiency equal to or higher than that is obtained, and the life is extended.
【００１６】ところで、上述した実施の形態では、蛍光
体としてＳｒＴｉＯ3：Ｐｒ,Ａｌを例に説明したが、本
発明の適用範囲は、この蛍光体に限るものではない。他
の蛍光体においても、この結晶粒子表面に蛍光体の母体
を構成する材料を被着させることで、同様の効果が得ら
れる。例えば、Ｚｎ2ＳｉＯ4：Ｍｎ蛍光体の場合、この
結晶粒子表面にＺｎ2ＳｉＯ4を被着させて蛍光体とする
ことで、従来よりあるＺｎ2ＳｉＯ4：Ｍｎ蛍光体に比較
し、同等以上の発光効率が得られ、長寿命となる。By the way, in the above-described embodiment, SrTiO 3 : Pr, Al was described as an example of the phosphor, but the scope of application of the present invention is not limited to this phosphor. With other phosphors, the same effect can be obtained by depositing the material forming the matrix of the phosphor on the surface of the crystal particles. For example, in the case of a Zn 2 SiO 4 : Mn phosphor, by depositing Zn 2 SiO 4 on the surface of the crystal particles to form a phosphor, the Zn 2 SiO 4 : Mn phosphor is equivalent to the conventional Zn 2 SiO 4 : Mn phosphor. The above luminous efficiency is obtained and the life is extended.
【００１７】同様に、Ｙ3Ａｌ5Ｏ12：Ｔｂ蛍光体の場
合、この結晶粒子表面にＹ3Ａｌ5Ｏ12を被着させて蛍光
体とすることで、従来よりあるＹ3Ａｌ5Ｏ12：Ｔｂ蛍光
体に比較し、同等以上の発光効率が得られ、長寿命とな
る。また、Ｙ2Ｏ3：Ｅｕ蛍光体の場合、この結晶粒子表
面にＹ2Ｏ3を被着させて蛍光体とすることで、従来より
あるＹ2Ｏ3：Ｅｕ蛍光体に比較し、同等以上の発光効率
が得られ、長寿命となる。また、Ｇｄ2Ｏ3：Ｅｕ蛍光体
の場合、この結晶粒子表面にＧｄ2Ｏ3を被着させて蛍光
体とすることで、従来よりあるＧｄ2Ｏ3：Ｅｕ蛍光体に
比較し、同等以上の発光効率が得られ、長寿命となる。Similarly, in the case of a Y 3 Al 5 O 12 : Tb phosphor, Y 3 Al 5 O 12 is applied to the surface of the crystal grains to form a phosphor, which is a conventional Y 3 Al 5 O. As compared with the 12 : Tb phosphor, a luminous efficiency equal to or higher than that of the phosphor is obtained and the life is extended. Further, in the case of the Y 2 O 3 : Eu phosphor, by depositing Y 2 O 3 on the surface of the crystal particles to form a phosphor, the Y 2 O 3 : Eu phosphor is equivalent to the conventional Y 2 O 3 : Eu phosphor. The above luminous efficiency is obtained and the life is extended. Further, in the case of a Gd 2 O 3 : Eu phosphor, by depositing Gd 2 O 3 on the surface of the crystal particles to form a phosphor, it is equivalent to the conventional Gd 2 O 3 : Eu phosphor. The above luminous efficiency is obtained and the life is extended.
【００１８】なおまた、前述した実施の形態では、保護
部となる材料溶液中に蛍光体の結晶粒子（粉末）を分散
させて乾燥した粉末を焼成して蛍光体を得るようにした
が、これに限るものではない。複数の蛍光体の結晶粒子
を固着させて形成した蛍光体パターンの表面に、保護部
となる材料の溶液を塗布して焼成し、パターン状に整形
された各々の蛍光体粒子表面に、保護部を被着させるよ
うにしてもよい。また、上記実施の蛍光体は、金属酸化
物を母体とした蛍光体を例に説明したが、これに限るも
のではなく、ＺｎＳ，Ｍｎ蛍光体やＧｄ2Ｏ2Ｓ，Ｅｕ蛍
光体であっても同様である。例えば、ＺｎＳ，Ｍｎ蛍光
体には、ＺｎＳを被着させるようにすればよく、Ｇｄ2
Ｏ2Ｓ，Ｅｕ蛍光体には、Ｇｄ2Ｏ2Ｓを被着させるよう
にすればよい。Further, in the above-described embodiment, the crystal particles (powder) of the phosphor are dispersed in the material solution to be the protective part, and the dried powder is fired to obtain the phosphor. It is not limited to. On the surface of the phosphor pattern formed by fixing crystal particles of a plurality of phosphors, a solution of the material to be the protective part is applied and baked, and the protective part is formed on each phosphor particle surface shaped in a pattern. You may make it adhere. Further, although the phosphor in the above-described embodiment is described by taking the phosphor having a metal oxide as a matrix as an example, the phosphor is not limited to this, and may be ZnS, Mn phosphor or Gd 2 O 2 S, Eu phosphor. Is also the same. For example, ZnS may be deposited on the ZnS, Mn phosphor, and Gd 2
Gd 2 O 2 S may be applied to the O 2 S and Eu phosphors.
【００１９】[0019]
【発明の効果】以上説明したように、本発明によれば、
蛍光体の輝度劣化をより抑制でき、より長寿命とするこ
とができるなど、すぐれた効果が得られる。As described above, according to the present invention,
Excellent effects such as deterioration of the brightness of the phosphor can be further suppressed and the life of the phosphor can be extended.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０９Ｋ 11/67 ＣＰＲ Ｃ０９Ｋ 11/67 ＣＰＲ 11/78 11/78 11/80 11/80 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C09K 11/67 CPR C09K 11/67 CPR 11/78 11/78 11/80 11/80
Claims (12)
る金属とからなる蛍光体の結晶粒子を用意する工程と、 前記蛍光体粒子表面に前記金属化合物からなる保護部を
被着させる工程とを備えたことを特徴とする蛍光体の製
造方法。1. A step of preparing crystal particles of a phosphor made of a matrix made of a metal compound and a metal serving as an emission center, and a step of depositing a protective part made of the metal compound on the surface of the phosphor particles. A method for producing a phosphor, which comprises:
て、前記蛍光体は、ＳｒＴｉＯ3：Ｐｒ,Ａｌであり、前
記金属化合物は、ＳｒＴｉＯ3であることを特徴とする
蛍光体の製造方法。2. The method for producing a phosphor according to claim 1, wherein the phosphor is SrTiO 3 : Pr, Al and the metal compound is SrTiO 3. .
て、前記蛍光体は、Ｚｎ2ＳｉＯ4：Ｍｎであり、前記金
属化合物は、Ｚｎ2ＳｉＯ4であることを特徴とする蛍光
体の製造方法。3. The phosphor manufacturing method according to claim 1, wherein the phosphor is Zn 2 SiO 4 : Mn, and the metal compound is Zn 2 SiO 4 . Production method.
て、前記蛍光体は、Ｙ3Ａｌ5Ｏ12：Ｔｂであり、前記金
属化合物は、Ｙ3Ａｌ5Ｏ12であることを特徴とする蛍光
体の製造方法。4. The method for manufacturing a phosphor according to claim 1, wherein the phosphor is Y 3 Al 5 O 12 : Tb, and the metal compound is Y 3 Al 5 O 12. A method for producing a phosphor.
て、前記蛍光体は、Ｙ2Ｏ3：Ｅｕであり、前記金属化合
物は、Ｙ2Ｏ3であることを特徴とする蛍光体の製造方
法。5. The method for producing a phosphor according to claim 1, wherein the phosphor is Y 2 O 3 : Eu and the metal compound is Y 2 O 3 . Production method.
て、前記蛍光体は、Ｇｄ2Ｏ3：Ｅｕであり、前記金属化
合物は、Ｇｄ2Ｏ3であることを特徴とする蛍光体の製造
方法。6. The method for producing a phosphor according to claim 1, wherein the phosphor is Gd 2 O 3 : Eu and the metal compound is Gd 2 O 3 . Production method.
る金属とからなる蛍光体の結晶粒子と、 この結晶粒子に被着された前記金属化合物からなる保護
部とから構成されたことを特徴とする蛍光体。7. A crystal particle of a phosphor, which is composed of a matrix composed of a metal compound and a metal serving as an emission center, and a protective portion composed of the metal compound adhered to the crystal particle. Fluorescent substance.
光体は、ＳｒＴｉＯ 3：Ｐｒ,Ａｌであり、前記金属化合
物は、ＳｒＴｉＯ3であることを特徴とする蛍光体。8. The phosphor according to claim 7, wherein the firefly is
The optical body is SrTiO 3: Pr, Al, the metal compound
The thing is SrTiO3And a phosphor.
光体は、Ｚｎ2ＳｉＯ4：Ｍｎであり、前記金属化合物
は、Ｚｎ2ＳｉＯ4であることを特徴とする蛍光体。9. The phosphor according to claim 7, wherein the phosphor is Zn 2 SiO 4 : Mn and the metal compound is Zn 2 SiO 4 .
蛍光体は、Ｙ3Ａｌ5Ｏ12：Ｔｂであり、前記金属化合物
は、Ｙ3Ａｌ5Ｏ12であることを特徴とする蛍光体。10. The phosphor according to claim 7, wherein the phosphor is Y 3 Al 5 O 12 : Tb and the metal compound is Y 3 Al 5 O 12. .
蛍光体は、Ｙ2Ｏ3：Ｅｕであり、前記金属化合物は、Ｙ
2Ｏ3であることを特徴とする蛍光体。11. The phosphor according to claim 7, wherein the phosphor is Y 2 O 3 : Eu, and the metal compound is Y.
A phosphor, which is 2 O 3 .
蛍光体は、Ｇｄ2Ｏ3：Ｅｕであり、前記金属化合物は、
Ｇｄ2Ｏ3であることを特徴とする蛍光体。12. The phosphor according to claim 7, wherein the phosphor is Gd 2 O 3 : Eu, and the metal compound is
A phosphor characterized by being Gd 2 O 3 .
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|---|---|---|---|
| JP2001230995A JP2003041246A (en) | 2001-07-31 | 2001-07-31 | Phosphor and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001230995A JP2003041246A (en) | 2001-07-31 | 2001-07-31 | Phosphor and manufacturing method therefor |
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| Publication Number | Publication Date |
|---|---|
| JP2003041246A true JP2003041246A (en) | 2003-02-13 |
Family
ID=19063116
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|---|---|---|---|
| JP2001230995A Pending JP2003041246A (en) | 2001-07-31 | 2001-07-31 | Phosphor and manufacturing method therefor |
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| Country | Link |
|---|---|
| JP (1) | JP2003041246A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006025270A1 (en) * | 2004-09-03 | 2006-03-09 | Konica Minolta Medical & Graphic, Inc. | Phosphor and plasma display panel |
| US7413680B2 (en) | 2005-03-31 | 2008-08-19 | Noritake Co., Limited | Phosphor and fluorescent display device |
| US7416685B2 (en) | 2004-03-30 | 2008-08-26 | Noritake Co., Limited | Fluorescent material and fluorescent display apparatus |
| JP2009298997A (en) * | 2008-06-17 | 2009-12-24 | Noritake Co Ltd | Phosphor and fluorescent display |
| JP2011178950A (en) * | 2010-03-03 | 2011-09-15 | Noritake Itron Corp | Fluorophor for low-speed electron beam, and fluorescent display device |
| WO2012033122A1 (en) * | 2010-09-07 | 2012-03-15 | 宇部マテリアルズ株式会社 | Blue-light-emitting phosphor and light-emitting device equipped with the blue-light-emitting phosphor |
| JP2013533363A (en) * | 2010-07-27 | 2013-08-22 | ゼネラル・エレクトリック・カンパニイ | Moisture-resistant phosphor and related methods |
| JP2015149394A (en) * | 2014-02-06 | 2015-08-20 | スタンレー電気株式会社 | Wavelength conversion body and light-emitting device using the same |
| KR101851068B1 (en) | 2015-09-10 | 2018-04-20 | 가부시끼가이샤 도시바 | Fluorescent substance and manufacturing method thereof, and light-emitting device |
| JP2020105066A (en) * | 2014-07-22 | 2020-07-09 | カレント・ライティング・ソルーションズ，エルエルシー | Red-emitting phosphors, associated methods and devices |
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Cited By (14)
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|---|---|---|---|---|
| US7416685B2 (en) | 2004-03-30 | 2008-08-26 | Noritake Co., Limited | Fluorescent material and fluorescent display apparatus |
| WO2006025270A1 (en) * | 2004-09-03 | 2006-03-09 | Konica Minolta Medical & Graphic, Inc. | Phosphor and plasma display panel |
| US7413680B2 (en) | 2005-03-31 | 2008-08-19 | Noritake Co., Limited | Phosphor and fluorescent display device |
| JP2009298997A (en) * | 2008-06-17 | 2009-12-24 | Noritake Co Ltd | Phosphor and fluorescent display |
| US8465676B2 (en) | 2010-03-03 | 2013-06-18 | Noritake Itron Corporation | Phosphor for low-voltage electron beam and vacuum fluorescent display apparatus |
| JP2011178950A (en) * | 2010-03-03 | 2011-09-15 | Noritake Itron Corp | Fluorophor for low-speed electron beam, and fluorescent display device |
| JP2013533363A (en) * | 2010-07-27 | 2013-08-22 | ゼネラル・エレクトリック・カンパニイ | Moisture-resistant phosphor and related methods |
| KR101832529B1 (en) * | 2010-07-27 | 2018-02-26 | 제너럴 일렉트릭 캄파니 | Moisture-resistant phosphor and associated method |
| WO2012033122A1 (en) * | 2010-09-07 | 2012-03-15 | 宇部マテリアルズ株式会社 | Blue-light-emitting phosphor and light-emitting device equipped with the blue-light-emitting phosphor |
| JP5770192B2 (en) * | 2010-09-07 | 2015-08-26 | 宇部マテリアルズ株式会社 | Blue light emitting phosphor and light emitting device using the blue light emitting phosphor |
| KR101789856B1 (en) | 2010-09-07 | 2017-10-25 | 우베 고산 가부시키가이샤 | Blue-light-emitting phosphor and light-emitting device equipped with the blue-light-emitting phosphor |
| JP2015149394A (en) * | 2014-02-06 | 2015-08-20 | スタンレー電気株式会社 | Wavelength conversion body and light-emitting device using the same |
| JP2020105066A (en) * | 2014-07-22 | 2020-07-09 | カレント・ライティング・ソルーションズ，エルエルシー | Red-emitting phosphors, associated methods and devices |
| KR101851068B1 (en) | 2015-09-10 | 2018-04-20 | 가부시끼가이샤 도시바 | Fluorescent substance and manufacturing method thereof, and light-emitting device |
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