Abstract:
蛍光体は、一般式Ce x RE 3-x M 5+y O z で表されてガーネット構造を持ち、Mは、Al、Lu、Ga、およびScの少なくとも1つであり、REは、La、Pr、Tb、Yb、Gd,Y、Luの少なくとも1つであり、0.0001≦x≦0.3、0≦y≦0.5あるいは0≦y≦-0.5、11.25≦z≦12.75とされ、MoおよびWの少なくとも1つを、全陽イオンに対して10000ppm以下のモル比で共添加されたガーネットを含む。
Abstract:
A process for synthesizing a color stable Mn 4+ doped phosphor includes contacting a precursor of formula I, I, II, III or IV is contacted with a fluorine-containing oxidizing agent in gaseous form at an elevated temperature to form the color stable Mn 4+ doped phosphor A a B b C c D d X x :Mn4+ (I) A ai B bi C ci D d X x Y d :Mn 4 + (II) A 1 3 G 2m-n Mn m Mg n Li 3 F 12 Q p, (III) AZF 4 :Mn 4+ (iv) wherein A is Li, Na, K, Rb, Cs, or a combination thereof; B is Be, Mg, Ca, Sr, Ba, or a combination thereof; C is Sc, Y, B, Al, Ga, In, Tl, or a combination thereof; D is Ti, Zr, Hf, Rf, Si, Ge, Sn, Pb, or a combination thereof; X is F or a combination of F and at least one of Br, CI, and I; Y is O, or a combination of O and at least one of S and Se; A1 is Na or K, or a combination thereof; G is AI, B, Sc, Fe, Cr, Ti, In, or a combination thereof; Z is La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, Y, In, or a combination thereof; 0
Abstract:
The present invention provides a process for continuously preparing rare earth doped fluorescent nanoparticles, their solution, and a system therefor. The process for continuously preparing a rare earth doped fluorescent nanoparticle solution provided in the present invention comprises the following steps of: mixing a cation source compound, an anion source compound, and at least one solvent for controlling the crystal growth of said rare earth doped fluorescent nanoparticles to form a mixture solution; and maintaining said mixture solution in a microreactor for a predetermined period of time at a predetermined temperature, so as to obtain said rare earth doped fluorescent nanoparticle solution, wherein said microreactor comprises a micromixing device and a micro heat exchanging device, with said micromixing device being for continuously mixing said mixture solution, and said micro heat exchanging device being for adjusting the temperature of said microreactor to a predetermined temperature. The rare earth doped fluorescent nanoparticles obtained by the present invention have a uniform narrow particle size, a high crystallinity, and a good reproducibility of the product quality.
Abstract:
A new inorganic scintillating material is provided represented by the formula Ln(l-m-n)HfnCemA(3+n), where A is Br or CI, or I, or a mixture of at least two halogens of the group, Ln is an element from the group: La, Nd, Pm, Sm, Eu, Gd, Tb, Lu, Y. A new crystal scintillator is also provided represented by the formula Ln(l-m)CemA3: n·Hf4+, where Ln(l-m)CemA3 represents the chemical composition of the matrix material, A is Br, or CI, or I, or a mixture of at least two halogens from the group, Ln is an element from the group: La, Nd, Pm, Sm, Eu, Gd, Tb, Lu, Y; Hf4+ is a dopant. A radiation detector comprising a scintillating element based on the novel inorganic scintillating material is also provided.
Abstract:
A silicate-base luminescent material excitable by the radiation source having wavelengths in the UV-to-blue emitting range and the method of manufacturing the same, especially for white-base light emitting apparatus. The luminescent material has an emission spectrum with at least more than two emission peaks in the 370-760nm. The general constitution of the luminescent material is aAO bA'O cSiO 2 :xEu yLn zM dN, wherein A is selected from the group consisting of Sr,Ca, Mg or combinations thereof; A' is selected from the group consisting of Mg, Zn or combinations thereof; Ln is selected from the group consisting of Nd, Dy, Ho, Tm, La, Ce, Er, Pr, Bi, Sm, Sn, Y, Lu, Ga, Sb, Tb, Mn, Pb or combinations thereof; M is selected from one ore more of halogen ion; N is selected from the group consisting of Li + , Na + , K + , Ag + or combinations thereof; and a, b, c, x, y, z, dindicate mole coefficients.
Abstract:
The present invention provides a method of preparing at least one nano- structured material of formula M 1 M 2 X n comprising the step of treating: at least one compound having the formula [CX 3 (CX 2 ) n (CH 2 ) m COO] p M 1 ; and at least one compound having the formula [CX 3 (CX 2 ) n (CH 2 ) m COO] p M 2 ; wherein each X is the same or different and is selected from the group consisting of : halogens, O, S, Se, Te, N, P and As ; each n is the same or different and is 0 = n = 10 ; each m is the same or different and is 0 = m = 10 ; each p is the same or different and is 1 = p = 5 ; each M 1 is the same or different and is selected from the group consisting of: Li, Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Ra and NH 4 ; each M 2 is the same or different and is a metal ion. The present invention also provides uses of the nano-structured material prepared according to the method of the present invention.
Abstract translation:本发明提供一种制备至少一种式M 1 M 2 N 2 N N的纳米结构材料的方法,其包括以下步骤: 至少一种具有下式的化合物[CX 3(CX 2)n(CH 2) m 1 CO 2] 1 M 1 N 2; 和至少一种具有式[CX 3(X 2))(CH 2)2的化合物 sub> > m 2 CO 2] 2 M 2 N 2; 其中每个X相同或不同,并且选自:卤素,O,S,Se,Te,N,P和As; 每个n相同或不同,为0 = n = 10; 每个m相同或不同,为0 = m = 10; 每个p相同或不同,为1 = p = 5; 每个M 1相同或不同,选自:Li,Na,K,Rb,Cs,Fr,Be,Mg,Ca,Sr,Ba,Ra和NH, SUB> 4 SUB> 每个M 2相同或不同,为金属离子。 本发明还提供了根据本发明的方法制备的纳米结构材料的用途。