JP2013035953A - Phosphor molding material, method for producing phosphor molding material, and luminescent device - Google Patents

Phosphor molding material, method for producing phosphor molding material, and luminescent device Download PDF

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JP2013035953A
JP2013035953A JP2011173812A JP2011173812A JP2013035953A JP 2013035953 A JP2013035953 A JP 2013035953A JP 2011173812 A JP2011173812 A JP 2011173812A JP 2011173812 A JP2011173812 A JP 2011173812A JP 2013035953 A JP2013035953 A JP 2013035953A
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phosphor
silicon dioxide
molding material
phosphor molding
perhydropolysilazane
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Yoshifumi Tsutai
美史 傳井
Yutaka Sato
豊 佐藤
Takashi Abe
誉史 阿部
Masahito Iguchi
真仁 井口
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NTK Ceratec Co Ltd
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Nihon Ceratec Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide: a phosphor molding material exhibiting higher output and high color rendering properties; a method for producing the same; and a luminescent device using the same.SOLUTION: This phosphor molding material 10 includes a joint body 11 comprising silicon dioxide obtained by oxidizing perhydropolysilazane, and a particular phosphor material 12. Here the perhydropolysilazane is an inorganic polymer comprising e.g. silicon (Si), nitrogen (N) and hydrogen (H) and convertible to silicon dioxide (SiO) by reacting with water at normal temperature under normal pressure, for example.

Description

本発明は、蛍光体材料を含む蛍光体成形材料およびその製造方法、並びにそれを用いた発光装置に関する。   The present invention relates to a phosphor molding material containing a phosphor material, a method for producing the same, and a light emitting device using the same.

蛍光体を用いた発光装置としては、例えば、ＬＥＤの周囲に、蛍光体をエポキシ樹脂またはシリコーン樹脂に分散させて配置したものが知られている（例えば、特許文献１または特許文献２参照）。しかし、この発光装置では、ＬＥＤの高出力化やＬＥＤの発熱に伴い、エポキシ樹脂またはシリコーン樹脂が劣化したり、変形したりして、高出力化を図ることが難しいという問題があった。そこで、エポキシ樹脂またはシリコーン樹脂に代えて、例えば、ガラスにより蛍光体を封止した発光装置が開発されている（例えば、特許文献３から特許文献５参照）。この発光装置によれば、無機材料を用いているので、耐熱性を向上させることができ、高出力化を図ることができる。   As a light emitting device using a phosphor, for example, a device in which a phosphor is dispersed in an epoxy resin or a silicone resin around an LED is known (see, for example, Patent Document 1 or Patent Document 2). However, this light emitting device has a problem that it is difficult to achieve high output due to deterioration or deformation of the epoxy resin or silicone resin accompanying the increase in the output of the LED or the heat generation of the LED. Therefore, instead of epoxy resin or silicone resin, for example, a light emitting device in which a phosphor is sealed with glass has been developed (see, for example, Patent Document 3 to Patent Document 5). According to this light-emitting device, since an inorganic material is used, heat resistance can be improved and high output can be achieved.

特許第３３６４２２９号公報Japanese Patent No. 3364229 特許第３８２４９１７号公報Japanese Patent No. 38241717 特開２００９−９１５４６号公報JP 2009-91546 A 特開２００８−１４３９７８号公報JP 2008-143978 A 特開２００８−１１５２２３号公報JP 2008-115223 A

しかしながら、従来の無機材料を用いた発光装置では、蛍光体粒子とガラス粉末とを混合して焼結するので、蛍光体粒子もガラスの融点温度まで昇温されてしまうという問題があった。一般に、高演色性を有する蛍光体は熱に対して弱く、ガラスの融点温度まで昇温されると、劣化してしまい、目的とする特性を得ることが難しい。なお、低融点ガラスを用いれば温度を低くすることはできるが、低融点ガラスには鉛が含まれることが多く、環境面から好ましくない。   However, in a conventional light emitting device using an inorganic material, since phosphor particles and glass powder are mixed and sintered, there is a problem that the phosphor particles are also heated to the melting point temperature of the glass. In general, a phosphor having high color rendering properties is weak against heat, and when the temperature is raised to the melting point temperature of glass, it deteriorates and it is difficult to obtain desired characteristics. Note that the temperature can be lowered by using low-melting glass, but the low-melting glass often contains lead, which is not preferable from an environmental viewpoint.

本発明は、このような問題に基づきなされたものであり、高出力化および高演色性を得ることができる蛍光体成形材料およびその製造方法、並びにそれを用いた発光装置を提供することを目的とする。   The present invention has been made based on such problems, and an object of the present invention is to provide a phosphor molding material capable of achieving high output and high color rendering, a method for producing the same, and a light emitting device using the same. And

本発明の蛍光体成形材料は、酸化により二酸化ケイ素となる二酸化ケイ素前駆体を酸化させた二酸化ケイ素よりなる結合体と、粒子状の蛍光体材料とを含むものである。   The phosphor molding material of the present invention includes a combined body made of silicon dioxide obtained by oxidizing a silicon dioxide precursor that becomes silicon dioxide by oxidation, and a particulate phosphor material.

本発明の蛍光体成形材料の製造方法は、酸化により二酸化ケイ素となる二酸化ケイ素前駆体と、粒子状の蛍光体材料と、溶媒とを含む混合物を調製したのち、溶媒を除去すると共に、ペルヒドロポリシラザンを酸化するものである。   The method for producing a phosphor molding material of the present invention comprises preparing a mixture containing a silicon dioxide precursor that becomes silicon dioxide by oxidation, a particulate phosphor material, and a solvent, then removing the solvent, It oxidizes polysilazane.

本発明の発光装置は、本発明の蛍光体成形材料を有するものである。   The light emitting device of the present invention has the phosphor molding material of the present invention.

本発明の蛍光体成形材料によれば、二酸化ケイ素前駆体を酸化させた二酸化ケイ素よりなる結合体と、粒子状の蛍光体材料とを含むようにしたので、無機材料により成形することができ、発光素子を高出力化しても、特性の劣化を抑制することができる。よって、本発明の蛍光体成形材料を用いた発光装置によれば、高出力を得ることができる。   According to the phosphor molding material of the present invention, since it includes a combined body made of silicon dioxide obtained by oxidizing a silicon dioxide precursor and a particulate phosphor material, it can be molded from an inorganic material, Even if the output of the light-emitting element is increased, deterioration of characteristics can be suppressed. Therefore, according to the light emitting device using the phosphor molding material of the present invention, high output can be obtained.

また、二酸化ケイ素前駆体としてペルヒドロポリシラザンを用いるようにすれば、低温で成形することができ、蛍光体材料の特性劣化を抑制し、高い演色性を得ることができると共に、鉛を含まないので、環境面からも優れている。よって、本発明の蛍光体成形材料を用いた発光装置によれば、高演色性を得ることができる。   In addition, if perhydropolysilazane is used as the silicon dioxide precursor, it can be molded at a low temperature, suppresses the deterioration of the characteristics of the phosphor material, obtains high color rendering, and does not contain lead. Also excellent from the environmental point of view. Therefore, according to the light emitting device using the phosphor molding material of the present invention, high color rendering can be obtained.

更に、可視光を透過可能な無機材料よりなり、蛍光体材料の含有量を調整する濃度調整材料を含むようにすれば、蛍光体材料の含有量を容易に調整することができる。   Furthermore, if it is made of an inorganic material that can transmit visible light and includes a concentration adjusting material that adjusts the content of the phosphor material, the content of the phosphor material can be easily adjusted.

本発明の蛍光体成形材料の製造方法によれば、酸化により二酸化ケイ素となる二酸化ケイ素前駆体と、粒子状の蛍光体材料と、溶媒とを含む混合物を調製したのち、溶媒を除去すると共に、ペルヒドロポリシラザンを酸化するので、容易に本発明の蛍光体成形材料を得ることができる。   According to the method for producing a phosphor molding material of the present invention, after preparing a mixture containing a silicon dioxide precursor that becomes silicon dioxide by oxidation, a particulate phosphor material, and a solvent, the solvent is removed, Since perhydropolysilazane is oxidized, the phosphor molding material of the present invention can be easily obtained.

本発明の一実施の形態に係る蛍光体成形材料の構成を表す模式図である。It is a schematic diagram showing the structure of the fluorescent substance molding material which concerns on one embodiment of this invention. 図１の蛍光体成形材料を用いた発光装置の構成を表す図である。It is a figure showing the structure of the light-emitting device using the fluorescent substance molding material of FIG.

以下、本発明の実施の形態について、図面を参照して詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１は、本発明の一実施の形態に係る蛍光体成形材料１０を模式的に表したものである。この蛍光体成形材料１０は、酸化により二酸化ケイ素となる二酸化ケイ素前駆体を酸化させた二酸化ケイ素よりなる結合体１１と、粒子状の蛍光体材料１２とを含んでいる。二酸化ケイ素前駆体は、有機成分を含まないものが好ましい。未反応部分が残存すると有機成分が含まれてしまうからである。二酸化ケイ素前駆体としては、例えば、無機高分子よりなるものが好ましく挙げられ、具体的には、ペルヒドロポリシラザンが好ましい。ペルヒドロポリシラザンは、例えば、化１に示したように、ケイ素（Ｓｉ）と窒素（Ｎ）と水素（Ｈ）とからなる無機高分子であり、例えば、常圧、常温で水と反応し二酸化ケイ素（ＳｉＯ２）に転化する特性を有している。この転化反応は、例えば、化２に示した反応式により表わされる。これにより、結合体１１は、例えば、蛍光体材料１２を接着してシート状などに成形することができる。 FIG. 1 schematically shows a phosphor molding material 10 according to an embodiment of the present invention. The phosphor molding material 10 includes a combined body 11 made of silicon dioxide obtained by oxidizing a silicon dioxide precursor that becomes silicon dioxide by oxidation, and a particulate phosphor material 12. The silicon dioxide precursor preferably does not contain an organic component. It is because an organic component will be contained if an unreacted part remains. As a silicon dioxide precursor, what consists of an inorganic polymer is mentioned preferably, for example, Specifically, perhydropolysilazane is preferable. Perhydropolysilazane is an inorganic polymer composed of silicon (Si), nitrogen (N) and hydrogen (H), as shown in Chemical Formula 1, for example, and reacts with water at normal pressure and room temperature to produce carbon dioxide. It has the property of being converted to silicon (SiO 2 ). This conversion reaction is represented, for example, by the reaction formula shown in Chemical Formula 2. Thereby, the conjugate | bonded_body 11 can shape | mold the sheet | seat shape etc. by adhere | attaching the phosphor material 12, for example.

Figure 2013035953
Figure 2013035953

Figure 2013035953
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蛍光体材料１２は、例えば、蛍光体粒子を含んでいる。蛍光体粒子としては、例えば、ＢａＭｇＡｌ１０Ｏ１７：Ｅｕ，ＺｎＳ：Ａｇ，Ｃｌ，ＢａＡｌ２Ｓ４：ＥｕあるいはＣａＭｇＳｉ２Ｏ６：Ｅｕなどの青色系蛍光体、Ｚｎ２ＳｉＯ４：Ｍｎ，（Ｙ，Ｇｄ）ＢＯ３：Ｔｂ，ＺｎＳ：Ｃｕ，Ａｌ，Ｙ３Ａｌ５Ｏ１２：Ｃｅ，(Ｍ)２ＳｉＯ４：Ｅｕ（Ｍは、Ｂａ，Ｃａ，ＳｒおよびＭｇからなる群のうちの少なくとも１つが含まれる）あるいは（Ｂａ，Ｓｒ，Ｍｇ）Ｏ・ａＡｌ２Ｏ３：Ｍｎなどの黄色または緑色系蛍光体、（Ｙ，Ｇｄ）ＢＯ３：Ｅｕ，Ｙ２Ｏ２Ｓ：ＥｕあるいはＹＰＶＯ４：Ｅｕなどの赤色系蛍光体が挙げられる。蛍光体材料１２には、これらの１種または２種以上が混合して用いられる。蛍光体粒子の粒子径は、基本的には問わないが、平均粒子径が５μｍから２０μｍ程度で、粒子径はできるだけ揃っていた方が好ましい。特性を安定させることができるからである。 The phosphor material 12 includes, for example, phosphor particles. Examples of phosphor particles include blue phosphors such as BaMgAl 10 O 17 : Eu, ZnS: Ag, Cl, BaAl 2 S 4 : Eu or CaMgSi 2 O 6 : Eu, Zn 2 SiO 4 : Mn, (Y , Gd) BO 3: Tb, ZnS: Cu, Al, Y 3 Al 5 O 12: Ce, (M) 2 SiO 4: Eu (M is at least one of the group consisting of Ba, Ca, Sr and Mg Or (Ba, Sr, Mg) O.aAl 2 O 3 : yellow or green phosphor such as Mn, (Y, Gd) BO 3 : Eu, Y 2 O 2 S: Eu or YPVO 4 : Examples thereof include red phosphors such as Eu. These phosphor materials 12 are used by mixing one or more of these. The particle diameter of the phosphor particles is basically not limited, but it is preferable that the average particle diameter is about 5 μm to 20 μm and the particle diameters are as uniform as possible. This is because the characteristics can be stabilized.

また、蛍光体材料１２は、例えば、蛍光体粒子に代えて、または、蛍光体粒子と共に、蛍光体粒子の表面を被覆層で被覆したものを含んでいてもよい。被覆層は、例えば、希土類酸化物，酸化ジルコニウム，酸化チタン，酸化亜鉛，酸化アルミニウム，イットリウム・アルミニウム・ガーネットなどのイットリウムとアルミニウムの複合酸化物，酸化マグネシウム，およびＭｇＡｌ２Ｏ４などのアルミニウムとマグネシウムの複合酸化物からなる群のうちの少なくとも１種の金属酸化物を主成分として含んでいることが好ましい。耐水性および耐紫外光などの特性を向上させることができるからである。中でも、希土類酸化物が好ましく、イットリウム，ガドリニウム，セリウムおよびランタンからなる群のうちの少なくとも１種の元素を含む希土類酸化物がより好ましく、特にＹ２Ｏ３が望ましい。より高い効果を得ることができ、また、コストを抑制することができるからである。 In addition, the phosphor material 12 may include, for example, a material in which the surface of the phosphor particle is covered with a coating layer instead of the phosphor particle or together with the phosphor particle. The coating layer is made of, for example, rare earth oxide, zirconium oxide, titanium oxide, zinc oxide, aluminum oxide, yttrium / aluminum composite oxide such as yttrium / aluminum / garnet, magnesium oxide, and aluminum / magnesium such as MgAl 2 O 4. It is preferable that at least one metal oxide of the group consisting of the complex oxides is contained as a main component. This is because characteristics such as water resistance and ultraviolet light resistance can be improved. Among these, rare earth oxides are preferable, rare earth oxides containing at least one element selected from the group consisting of yttrium, gadolinium, cerium and lanthanum are more preferable, and Y 2 O 3 is particularly preferable. This is because higher effects can be obtained and costs can be suppressed.

蛍光体成形材料１０は、更に、可視光を透過可能な無機材料よりなり、蛍光体材料の含有量を調整する濃度調整材料１３を含んでいてもよい。濃度調整材料１３としては、例えば、二酸化ケイ素粒子が好ましく挙げられる。二酸化ケイ素粒子は、結晶でもガラスでもよい。なお、図１では、蛍光体材料１２と濃度調整材料１３とを等配して表しているが、実際には、ランダムに配置されている。また、図１では、蛍光体材料１２と濃度調整材料１３との間に、完全に、結合体１１が充填されているように表しているが、蛍光体材料１２および濃度調整材料１３が接着されて入ればよく、空隙（隙間）が存在していてもよい。   The phosphor molding material 10 may further include a concentration adjusting material 13 made of an inorganic material that can transmit visible light and adjusting the content of the phosphor material. As the concentration adjusting material 13, for example, silicon dioxide particles are preferably mentioned. The silicon dioxide particles may be crystalline or glass. In FIG. 1, the phosphor material 12 and the concentration adjusting material 13 are equally arranged, but actually, they are randomly arranged. Further, in FIG. 1, it is shown that the combined body 11 is completely filled between the phosphor material 12 and the concentration adjusting material 13, but the phosphor material 12 and the concentration adjusting material 13 are bonded. And a gap (gap) may exist.

この蛍光体成形材料１０は、例えば、次のようにして製造するこができる。まず、酸化により二酸化ケイ素となる二酸化ケイ素前駆体と、粒子状の蛍光体材料１２と、溶媒とを含む混合物を調製する。その際、二酸化ケイ素前駆体と、蛍光体材料１２と、溶媒とを混合するようにしてもよく、また、二酸化ケイ素前駆体と溶媒とを混合したものに、蛍光体材料１２を混合するようにしてもよい。溶媒には、例えば、有機溶媒を用いる。この混合物には、更に、二酸化ケイ素粒子などよりなる濃度調整材料１３を添加して蛍光体材料１２の含有量を調整するようにしてもよい。次いで、この混合物から溶媒を除去すると共に、二酸化ケイ素前駆体を酸化し、二酸化ケイ素に転化する。この酸化は、例えば、二酸化ケイ素前駆体としてペルヒドロポリシラザンを用いる場合には、大気中において、常圧、常温で行うことが可能である。これにより蛍光体成形材料１０が得られる。   The phosphor molding material 10 can be manufactured as follows, for example. First, a mixture containing a silicon dioxide precursor that becomes silicon dioxide by oxidation, a particulate phosphor material 12, and a solvent is prepared. At that time, the silicon dioxide precursor, the phosphor material 12 and a solvent may be mixed, and the phosphor material 12 may be mixed with a mixture of the silicon dioxide precursor and the solvent. May be. For example, an organic solvent is used as the solvent. A concentration adjusting material 13 made of silicon dioxide particles or the like may be added to the mixture to adjust the content of the phosphor material 12. The solvent is then removed from the mixture and the silicon dioxide precursor is oxidized and converted to silicon dioxide. For example, when perhydropolysilazane is used as the silicon dioxide precursor, this oxidation can be performed in the atmosphere at normal pressure and normal temperature. Thereby, the phosphor molding material 10 is obtained.

図２は、この蛍光体成形材料１０を用いた発光装置２０の一構成例を表わすものである。この発光装置２０は、基板２１の上にＬＥＤなどの発光素子２２が搭載されており、発光素子２２の上にシート状の蛍光体成形材料１０が積層されている。発光素子２２には、例えば、励起光として紫外光、青色光、または緑色光を発するものが用いられ、それに応じて、蛍光体成形材料１０の蛍光体材料１２の種類が選択される。また、発光素子２２は基板２１の上に形成された配線２３とワイヤ２４により電気的に接続され、発光素子２２の周りには例えばリフレクタ枠２５が形成されている。発光素子２２および蛍光体成形材料１０の上には、これらを覆うように封止層２６が形成されている。封止層２６は、例えば、樹脂により構成されている。   FIG. 2 shows a configuration example of the light emitting device 20 using the phosphor molding material 10. In the light emitting device 20, a light emitting element 22 such as an LED is mounted on a substrate 21, and the sheet-like phosphor molding material 10 is laminated on the light emitting element 22. As the light emitting element 22, for example, one that emits ultraviolet light, blue light, or green light as excitation light is used, and the type of the phosphor material 12 of the phosphor molding material 10 is selected accordingly. The light emitting element 22 is electrically connected to the wiring 23 and the wire 24 formed on the substrate 21, and a reflector frame 25 is formed around the light emitting element 22, for example. A sealing layer 26 is formed on the light emitting element 22 and the phosphor molding material 10 so as to cover them. The sealing layer 26 is made of, for example, a resin.

このように本実施の形態によれば、酸化により二酸化ケイ素となる二酸化ケイ素前駆体を酸化させた二酸化ケイ素よりなる結合体１１と、粒子状の蛍光体材料１２とを含むようにしたので、蛍光体成形材料１０を無機材料により成形することができ、発光素子２２を高出力化しても、特性の劣化を抑制することができる。よって、高出力を得ることができる。   As described above, according to the present embodiment, the combination 11 made of silicon dioxide obtained by oxidizing the silicon dioxide precursor that becomes silicon dioxide by oxidation and the particulate phosphor material 12 are included. The body molding material 10 can be molded from an inorganic material, and deterioration of characteristics can be suppressed even if the light emitting element 22 has a high output. Therefore, high output can be obtained.

また、二酸化ケイ素前駆体としてペルヒドロポリシラザンを用いるようにすれば、低温で成形することができ、蛍光体材料１２の特性劣化を抑制し、高い演色性を得ることができると共に、鉛を含まないので、環境面からも優れている。よって、高演色性を得ることができる。   Further, if perhydropolysilazane is used as the silicon dioxide precursor, it can be molded at a low temperature, the characteristic deterioration of the phosphor material 12 can be suppressed, high color rendering can be obtained, and lead is not contained. So it's also environmentally superior. Therefore, high color rendering properties can be obtained.

更に、蛍光体成形材料１０に濃度調整材料１３を含むようにすれば、蛍光体材料１２の含有量を容易に調整することができる。   Furthermore, if the phosphor molding material 10 includes the concentration adjusting material 13, the content of the phosphor material 12 can be easily adjusted.

加えて、酸化により二酸化ケイ素となる二酸化ケイ素前駆体と、粒子状の蛍光体材料１２と、溶媒とを含む混合物を調製したのち、溶媒を除去すると共に、ペルヒドロポリシラザンを酸化するようにしたので、容易に蛍光体成形材料１０を得ることができる。   In addition, after preparing a mixture containing a silicon dioxide precursor that becomes silicon dioxide by oxidation, a particulate phosphor material 12 and a solvent, the solvent was removed and perhydropolysilazane was oxidized. The phosphor molding material 10 can be easily obtained.

（実施例１）
ペルヒドロポリシラザンと溶媒とを混合したものに、蛍光体材料１２を混合し、混合物を調整した。蛍光体材料１２には、平均粒子径が１０μｍ程度の緑色系の蛍光体粒子を用い、溶媒にはジブチルエーテルを用いた。この混合物を乾燥させ、溶媒を除去すると共に、ペルヒドロポリシラザンを酸化させた。これにより、シート状の蛍光体成形材料１０を得た。得られた蛍光体成形材料１０を用い、図２に示したような発光装置２０を作製した。発光素子２２には紫外光を発するものを用いた。この発光装置２０について通電を行ったところ、蛍光体成形材料１０からの発光が確認された。 Example 1
The phosphor material 12 was mixed with a mixture of perhydropolysilazane and a solvent to prepare a mixture. As the phosphor material 12, green phosphor particles having an average particle diameter of about 10 μm were used, and dibutyl ether was used as a solvent. The mixture was dried to remove the solvent and oxidize perhydropolysilazane. Thereby, a sheet-like phosphor molding material 10 was obtained. Using the obtained phosphor molding material 10, a light emitting device 20 as shown in FIG. 2 was produced. The light emitting element 22 used emits ultraviolet light. When the light emitting device 20 was energized, light emission from the phosphor molding material 10 was confirmed.

以上、実施の形態を挙げて本発明を説明したが、本発明は上記実施の形態に限定されるものではなく、種々変形可能である。例えば、上記実施の形態では、発光装置２０の構造について具体的に説明したが、他の構造を有するように構成してもよい。   The present invention has been described with reference to the embodiment. However, the present invention is not limited to the above embodiment, and various modifications can be made. For example, in the above embodiment, the structure of the light-emitting device 20 has been specifically described.

ＬＥＤなどの発光装置に用いることができる。   It can be used for light emitting devices such as LEDs.

１０…蛍光体成形材料、１１…結合体、１２…蛍光体材料、１３…濃度調整材料、２０…発光装置、２１…基板、２２…発光素子、２３…配線、２４…ワイヤ、２５…リフレクタ枠、２６…封止層   DESCRIPTION OF SYMBOLS 10 ... Phosphor molding material, 11 ... Combined body, 12 ... Phosphor material, 13 ... Concentration adjusting material, 20 ... Light emitting device, 21 ... Substrate, 22 ... Light emitting element, 23 ... Wiring, 24 ... Wire, 25 ... Reflector frame , 26 ... sealing layer

Claims (10)

酸化により二酸化ケイ素となる二酸化ケイ素前駆体を酸化させた二酸化ケイ素よりなる結合体と、粒子状の蛍光体材料とを含むことを特徴とする蛍光体成形材料。   A phosphor molding material comprising: a combined body made of silicon dioxide obtained by oxidizing a silicon dioxide precursor that becomes silicon dioxide by oxidation; and a particulate phosphor material. 前記二酸化ケイ素前駆体はペルヒドロポリシラザンであることを特徴とする請求項１記載の蛍光体成形材料。   2. The phosphor molding material according to claim 1, wherein the silicon dioxide precursor is perhydropolysilazane. 前記結合体により前記蛍光体材料を接着して成形したことを特徴とする請求項１または請求項２に記載の蛍光体成形材料。   The phosphor molding material according to claim 1 or 2, wherein the phosphor material is bonded and molded by the combined body. 可視光を透過可能な無機材料よりなり、前記蛍光体材料の含有量を調整する濃度調整材料を含むことを特徴とする請求項１から請求項３のいずれか１に記載の蛍光体成形材料。   4. The phosphor molding material according to claim 1, comprising a concentration adjusting material made of an inorganic material capable of transmitting visible light and adjusting a content of the phosphor material. 5. 前記濃度調整材料として、二酸化ケイ素粒子を含むことを特徴とする請求項４記載の蛍光体成形材料。   The phosphor molding material according to claim 4, wherein the concentration adjusting material includes silicon dioxide particles. 酸化により二酸化ケイ素となる二酸化ケイ素前駆体と、粒子状の蛍光体材料と、溶媒とを含む混合物を調製したのち、溶媒を除去すると共に、ペルヒドロポリシラザンを酸化することを特徴とする蛍光体成形材料の製造方法。   A phosphor molding characterized by preparing a mixture containing a silicon dioxide precursor that becomes silicon dioxide by oxidation, a particulate phosphor material, and a solvent, and then removing the solvent and oxidizing perhydropolysilazane. Material manufacturing method. 前記二酸化ケイ素前駆体として、ペルヒドロポリシラザンを用いることを特徴とする請求項６記載の蛍光体成形材料の製造方法。   The method for producing a phosphor molding material according to claim 6, wherein perhydropolysilazane is used as the silicon dioxide precursor. 前記混合物は、可視光を透過可能な無機材料よりなる濃度調整材料を添加して調製することにより、前記蛍光体材料の含有量を調整することを特徴とする請求項６または請求項７に記載の蛍光体成形材料の製造方法。   The said mixture adjusts content of the said phosphor material by adding the density | concentration adjustment material which consists of an inorganic material which can permeate | transmit visible light, The said phosphor material is adjusted. Manufacturing method of phosphor molding material. 前記濃度調整材料として、二酸化ケイ素粒子を添加することを特徴とする請求項８記載の蛍光体成形材料の製造方法。
9. The method for producing a phosphor molding material according to claim 8, wherein silicon dioxide particles are added as the concentration adjusting material.
請求項１から請求項５のいずれか１に記載の蛍光体成形材料を有することを特徴とする発光装置。   A light emitting device comprising the phosphor molding material according to claim 1.
JP2011173812A 2011-08-09 2011-08-09 Phosphor molding material, method for producing phosphor molding material, and luminescent device Pending JP2013035953A (en)

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