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    • 3. 发明申请
    • RARE-EARTH DOPED ALKALINE-EARTH SILICON NITRIDE PHOSPHOR, METHOD FOR PRODUCING AND RADIATION CONVERTING DEVICE COMPRISING SUCH A PHOSPHOR
    • 稀土掺杂的碱土氮化硅磷光体,生产和包含这种磷光体的辐射转换装置的方法
    • WO2009050171A2
    • 2009-04-23
    • PCT/EP2008/063810
    • 2008-10-14
    • LEUCHTSTOFFWERK BREITUNGEN GMBHLEDON LIGHTING JENNERSDORF GMBHDUAN, Cheng-JunHINTZEN, Hubertus TheresiaRÖSLER, SylkeSTARICK, DetlefRÖSLER, SvenDELSING, Anne Charlotte Anoinette
    • DUAN, Cheng-JunHINTZEN, Hubertus TheresiaRÖSLER, SylkeSTARICK, DetlefRÖSLER, SvenDELSING, Anne Charlotte Anoinette
    • C09K11/08C09K11/79C09K11/80
    • C09K11/0883C09K11/773C09K11/7734
    • The invention relates to a method of manufacturing a rare-earth doped alkaline-earth silicon nitride phosphor of a stoichiometric composition. Said method comprising the step of selecting one or more compounds each comprising at least one element of the group comprising the rare-earth elements (RE), the alkaline-earth elements (AE), silicon (Si) and nitrogen (N) and together comprising the necessary elements to form the rare-earth doped alkaline-earth silicon nitride phosphor (AE 2 Si 5 N 8 :RE). The method further comprises the step of bringing the compounds at an elevated temperature in reaction for forming the rare-earth doped alkaline-earth silicon nitride phosphor (AE 2 Si 5 N 8 :RE). In such a method normally a small amount of oxygen, whether intentionally or not-intentionally added, will be incorporated in the rare-earth doped alkaline-earth silicon nitride phosphor (AE 2 Si 5 N 8 :RE). According to the invention the creation of defects by formation of a non-stoichiometric oxygen containing phosphor is at least partly prevented by partly substituting for the ions (AE, Si, N) of the alkaline-earth silicon nitride phosphor (AE 2 Si 5 N 8 :RE) suitable further elements of the periodic system by which vacancies are created, filled or annihilated resulting in the formation of a modified alkaline-earth silicon nitride phosphor (AE 2 Si 5 N 8 :RE) having a stoichiometric composition. In this way a modified phosphor is obtained having excellent and stable optical properties. The invention further relates to a modified phosphor obtainable by the above-mentioned method and a radiation converting device comprising such a phosphor.
    • 本发明涉及制造化学计量组成的稀土掺杂碱土硅氮化物磷光体的方法。 所述方法包括选择一种或多种化合物的步骤,所述化合物各自包含稀土元素(RE),碱土元素(AE),硅(Si)和氮(N)的组中的至少一种元素并且一起 其包含形成稀土掺杂碱土硅氮化物磷光体(AE 2 N 5 N 8:RE)的必要元素。 该方法还包括使化合物在升高的温度下反应以形成稀土掺杂的碱土硅氮化物磷光体(AE 2 Si 5 N 5) 子> 8 :RE)。 在这种方法中,通常少量的氧,无论有意或无意添加,都将被掺入稀土掺杂的碱土硅氮化物磷光体(AE2Si5) /子>名词<子> 8 :RE)。 根据本发明,通过部分地替代碱土硅氮化物磷光体(AE 2,SiO 2)的离子(AE,Si,N)至少部分地防止通过形成非化学计量的含氧磷光体而产生缺陷 低分子量元素:RE)是周期系统的合适的其他元素,通过该元素可以产生空穴,填充或消灭,导致形成修饰的碱 - 其具有化学计量组成的稀土氮化硅磷光体(AE 2 N 5 N 8:RE)。 以这种方式获得具有优异且稳定的光学性质的改性磷光体。 本发明还涉及可通过上述方法获得的改性荧光粉和包含这种荧光粉的辐射转换设备。
    • 6. 发明申请
    • ABOS:M-BASED PHOSPHORS AND LIGHT SOURCES CONTAINING THESE PHOSPHORS
    • ABOS:含有这些磷的M基磷光体和光源
    • WO2009109382A1
    • 2009-09-11
    • PCT/EP2009/001546
    • 2009-03-05
    • LEUCHTSTOFFWERK BREITUNGEN GMBHDUAN, Cheng-JunHINTZEN, Hubertus,TheresiaRÖSLER, SylkeSTARICK, Detlef
    • DUAN, Cheng-JunHINTZEN, Hubertus,TheresiaRÖSLER, SylkeSTARICK, Detlef
    • C09K11/57C09K11/77C09K11/66C09K11/74C01G9/00
    • C09K11/576B82Y30/00C01G3/006C01G9/006C01G45/006C01P2002/52C01P2002/54C01P2002/72C01P2004/61C01P2004/62C01P2004/64C09K11/663C09K11/7421C09K11/7703Y02B20/181
    • This invention is related to efficient anorganic phosphors, which are based on an oxysulfide host lattice of the general formula ABOS: M. Furthermore, this invention is related to the use of these phosphors in various technical applications such as fluorescent lamps, colored light or white light emitting LEDs, scanning beam displays working with UV or purple laser as exciting source and other devices in order to convert especially UV or NUV radiation or short-wave visible light into an useful longer-wave visible radiation. This invention is also related to light sources and/or display applications that contain the inventive phosphor. An inventive phosphor shows the general formula ABOS: M, where A is at least one element selected from the group consisting of Ca, Mg, Sr, and Ba; B is at least one element selected from the group consisting of Zn and Mg; M is at least one first element selected from the group consisting of Mn 2+ , Cu 2+ , and Eu 2+ , Pb 2+ , Sb 3+ , Sn 2+ , Bi 3+ , Ce 3+ , Tb 3+ , and Pr 3+ ; and additionally at least one second element selected from the group consisting of Mn 2+ , Cu 2+ , Cu + , Ag + , Pb 2+ , Sb 3+ , Sn 2+ , Bi 3+ , Eu 2+ , Ce 3+ , Tb 3+ , Pr 3+ and La 3+ as well as Li + , Na + , K + , and Rb + , wherein at least one of the second elements is different from every one of the first elements.
    • 本发明涉及基于通式ABOS:M的氧硫化物宿主晶格的有效无机磷光体。此外,本发明涉及在各种技术应用中使用这些荧光体,例如荧光灯,彩色光或白色 发光LED,扫描光束显示器使用紫外或紫色激光作为激励源和其他设备,以便将特别是UV或NUV辐射或短波可见光转换成有用的较长波长的可见光。 本发明还涉及包含本发明磷光体的光源和/或显示应用。 本发明的荧光体显示通式ABOS:M,其中A是选自Ca,Mg,Sr和Ba中的至少一种元素; B是选自Zn和Mg中的至少一种元素; M是选自由Mn2 +,Cu2 +和Eu2 +,Pb2 +,Sb3 +,Sn2 +,Bi3 +,Ce3 +,Tb3 +和Pr3 +组成的组中的至少一种元素; 以及选自由Mn2 +,Cu2 +,Cu +,Ag +,Pb2 +,Sb3 +,Sn2 +,Bi3 +,Eu2 +,Ce3 +,Tb3 +,Pr3 +和La3 +以及Li +,Na +,K +和Rb +组成的组中的至少一种第二元素, 其中所述第二元件中的至少一个与所述第一元件中的每一个不同。