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在还原气氛下采用高温固相法合成了白光发光二极管(LED)用荧光粉Ca0.98-ySi2N2O2:?.02Eu2 ,yM3 ,其中M为Gd(1%-12%)或者Dy(0.25%-6......
采用高温固相法合成了Ca3Y2-2x(Si3O9)2∶2xSm3 系列荧光粉,并表征了材料的发光特性.X射线衍射图谱表明:得到的样品为纯相Ca3Y2(Si3O......
采用高温固相法合成了白光LED用荧光粉Ca1-x-ySi2O2N2 xCe,yTb。利用X射线衍射仪测量分析其物相结构,结果表明稀土离子的掺入并没有......
采用高温固相还原反应合成了新型单相荧光粉Ca9NaZn(PO4)7∶Ce3 , Mn2 ,并对Ce、Mn单、双掺荧光粉的发光性能和能量传递进行分析。......
采用溶胶-凝胶法制备了Ca3Al6Si2O16Ce3 ,Tb3 荧光粉,利用X射线衍射仪、荧光光谱仪以及差热分析仪对其结构和光学性质进行了研究。......
通过溶胶-凝胶法制备了纯相的Na2WO4∶Sb3 荧光粉,通过X射线衍射表征了其晶体结构,使用紫外-可见分光光度计研究了样品的发光性质......
采用高温固相法在800 ℃下制备出系列白色长余辉荧光粉Sr3Al2O5Cl2∶Eu2 , Tm3 , 并研究了它们的结构、形貌及发光性能。样品Sr2.9......
采用高温固相法合成了(La,Ce,Tb)BO3绿色发光粉,并对该发光粉进行了XRD和SEM分析。结果表明:(La,Ce,Tb)BO3的晶体结构和LaBO3相同,Ce3......
采用高温固相法和筛分法合成了YAG∶Ce3 系列黄色荧光粉。采用X射线衍射仪(XRD)、电子扫描显微镜(SEM)、激光粒度分布仪及荧光分光......
Synthesis and enhanced luminescence properties of double perovskite NaLa0.95-xYxEu0.05MgWO6 phosphor
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采用微乳液‐水热法合成一系列NaLa(MoO4)2∶Eu3+/Tb3+/Tm3+单/共掺的荧光粉(NLM )。采用X射线衍射(XRD)、扫描电子显微镜(SEM )、荧光光谱对荧光......
High thermal stability and blue-violet emitting phosphor CaYAlO4:Ti4+ with enhanced emission by Ca2+
Blue-violet light can not only enhance the total content of biomass and glucoside but also enrich the taste of the fruit......
采用高温固相法在还原气氛下合成了Sr5-x(PO4)2SiO4∶xEu2+磷灰石型荧光粉.通过XRD、PL、SEM对样品的晶体结构、激发和发射光谱以......
采用高温固相法在弱还原气氛下合成了一系列Ca2SiO4∶Ce3+,Sm3+,Li+荧光粉,研究了该荧光粉的发光性质以及能量传递机制.当Ce3+摩尔......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Sm3+-activated Y2O2S red phosphors were prepared by the combustion method and microemulsion method at the first time.X-r......
In the paper, the influences of the chip, silicone and phosphors on the color coordinate shift of LED were studied. In t......
Tunable and enhanced luminescence of Ba2 ? xCaxSiO4 ? yN2/3y:Eu2 t phosphors for white light-emittin
Color tuning and luminescence enhancement are predominant challenges for improving the perfor-mance of white light emitt......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
通过高温固相法成功合成了一种新型蓝光荧光粉BaKBP2 O8:Eu2+,分别用XRD和荧光光谱表征了其结构与光学性能。结果表明,Eu2+的引入并......
采用高温固相法制备了一种新型的白光LED用Ca3Si2O4N2∶Eu2+,Ce3+,K+荧光粉.利用X射线衍射仪对样品的物相结构进行了分析,结果表明......
采用高温固相法合成了荧光体Ba10(PO4)4(SiO4)2∶Ce3+和Ba10(PO4)4(SiO4)2∶Eu2+,研究了两种荧光体的光谱特性.结果表明,两者都呈......
Ultra-fine Ce:YAG phosphors were prepared by homogeneous precipitation under microwave irradiation method. The formation......
The CaLaGa3O7∶Eu3+ phosphor was prepared by a chemical co-precipitation method.Field emission scanning electron microsc......
Ce3+-activated yttrium aluminum garnet (YAG) was prepared by the solid-state reaction, in which H3BO3, LiF, NaF, KF and ......
The Tb3+-doped Y2O3 nanopowders were synthesized using the modified Pechini method.The average size of nanocrystallites ......
Synthesis and luminescence properties of Ca2SiO4-based red phosphors with Sm3+ doping for white LEDs
Sm3+-activated Ca2SiO4 red phosphors were prepared by the conventional high-temperature solid-state reaction method,and ......
Blue-green BaAl2O4:Eu2+,Dy3+ phosphors synthesized via combustion synthesis method assisted by micro
Blue-green luminescent BaAl2O4:Eu2+,Dy3+ phosphor powders were synthesized via combustion synthesis method assisted by m......
Incorporation of Si-N inducing white light of SrAl2Si2O8:Eu2+,Mn2+ phosphor for white light emitting
Photoluminescence (PL) and colorimetric properties of white-light emission SrA12Si2O8:Eu2+,Mn2+ phosphor were tuned effe......
YW2O6(OH)3:Tb3+ green phosphors were synthesized at different pH values via a facile hydrothermal method.The structure a......
A series of red phosphors EC+-doped MMgP2O7 (M=Ca,Sr,Ba ) were synthesized by solid-state reaction method.X-ray powder d......
The Ba1-xSrxMgSiO4:Eu2+,Mn2+ phosphors were prepared by solid-state reaction.Their photoluminescence properties were inv......
Photoluminescence enhancement of YAG:Ce3+ phosphor prepared by co-precipitation-rheological phase me
YAG:Ce3+ phosphor was prepared by a novel co-precipitation-rheological phase method.The resulting YAG:Ce3+ phosphor was ......
Ce3+ and Tb3+ co-doped SrSi2N2O2 phosphors were prepared by solid-state reaction.The X-ray diffraction pattern exhibited......
Photoluminescent properties of LaF3:Eu3+ and GdF3:Eu3+ nanoparticles prepared by co-precipitation me
LaF3:Eu3+ and GdF3:Eu3+ nanoparticles were prepared by a co-precipitation method in the presence of the chelating agent,......
Polycrystal of GdPO4:RE3+(RE=Tb, Tm) phosphors were prepared by solid- state method. Vacuum ultraviolet excitation and e......
Phosphors with ( Ce0. 67 -xGdxTb0. 33 ) MgAl11 O19 (0 ≤ x ≤0.37 ) composition were prepared by sol-gel processing. The......
采用改进的高温固相法合成了Eu2+/Mn2+掺杂的KSrGd(PO4)2荧光粉.用X射线粉晶衍射仪和荧光光谱仪对样品进行了表征.结果表明:Eu2+离子和Mn2+......
X射线成像板的成像性能很大程度上取决于存储荧光粉材料的物理化学性能.本文采用水热制备方法,以BaCl2、EuBr2、NaBF4为反应原料,......
用燃烧法在 60 0℃合成了铝酸锶铕磷光体和掺 Ba2 + 、Dy3+ 杂质阳离子的铝酸锶铕磷光体 ,实验结果表明 ,掺 Dy3+离子的磷光体具有......
提出了Eu2+激活的MAl2O4:Eu2+,RE3+(M=Ca,Sr,Ba;RE=Dy,Nd,Ho,Er,Pr,Tb等稀土元素)系列铝酸盐发光体的长余辉发光机理.认为O2-空位V......
通过高温固相法制备Li2Sr Si O4:Dy^3+,Eu^3+荧光粉,采用X-射线粉末衍射(XRD)和阴极射线光谱分别对其物相、阴极射线发光性能进行研究,......
利用近紫外LED芯片发出的近紫外光激发三基色荧光粉得到白光,其色温、显色指数等都由荧光粉的性能决定。本文对近紫外激发的荧光粉......
采用高温固相法合成Ca取代Sr3Al0.6Si0.4O4.4F0.6∶Ce3+中Sr的Sr3-xCaxAl0.6Si0.4O4.4F0.6∶Ce3+荧光粉.由于Sr3Al0.6Si0.4O4.4F0.......
采用传统的固相法成功合成了一系列α-Ba3Y(BO3)3∶Dy3+荧光粉,使用X射线衍射(XRD)、扫描电镜(SEM)、荧光光谱(FL)和寿命衰减曲线等对样品进......
在介绍LED(发光二极管)工作原理及特性的基础上,围绕着如何提高光取出效率,增强散热等LED产业中的议题,介绍了LED产业链中衬底材料、......
采用共沉淀法制备Y3Al5O12:Ce3+(YAG:Ce3+)荧光体前驱粉末,采用差热分析(DTA)、傅里叶红外(FT-IR)、X-射线衍射(XRD)和荧光光谱(PL)等测试分析手段......
分别介绍了以Mn2+和Tb3+作为激活中心的PDP用硅酸盐体系、铝酸盐体系、硼酸盐体系和磷酸盐等体系绿色荧光粉的研究现状.在以Mn2+作......
采用荧光粉转换的方法制备了纯绿色LED,所制备的纯绿光LED的发光峰值在520nm,其半峰宽约为30nm,法向光强为600mcd.......