LED用红色荧光粉Ca_(1.9)(Si_(0.8)P_(0.2))O_4:Eu~(3+)的制备及发光性能
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摘要
采用高温固相法制备了Ca_(1.9)(Si_(0.8)P_(0.2))O_4:Re(Re=Eu~(2+),Eu~(3+))系列发光材料,并对光致发光性能的影响因素进行了探究,主要包括煅烧温度、煅烧时间、稀土离子掺杂浓度等。经表征分析可知,制备Ca_(1.9)(Si_(0.8)P_(0.2))O_4:Eu~(2+)样品工艺条件确定为:煅烧温度、时间及掺杂Eu~(2+)浓度分别为1 275℃、4 h及4%。此样品最强激发波长为374 nm,最强发射波长为500 nm。色坐标结果显示样品发光处于绿光区域。制备Ca_(1.9)(Si_(0.8)P_(0.2))O_4:Eu~(3+)样品工艺条件确定为:煅烧温度、时间及掺杂Eu~(3+)浓度分别为1 300℃、4 h及6%。此样品最强激发波为394 nm,最强发射波长为589 nm。色坐标结果显示样品发光处于红光区域。
The Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Re( Re = Eu~(2+) ,Eu~(3+)) powders were prepared by high temperature solid state reaction method. The factors affecting the photoluminescence properties were systematically investigated,which including calcination temperature, calcination time and doping concentration of rare earth ions. The characterization analysis showed that the preparation conditions of Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Eu~(2+) were determined as follows: calcination temperature,time and doped Eu~(2+) concentration were 1 275℃,4 h and 4%,respectively. The Maximum excitation wavelength of this sample was 374 nm,and the maximum emission wavelength was 500 nm. The emitting color of Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Eu~(2+) was green. The process conditions of preparing Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Eu~(3+)were determined as follows: calcination temperature,calcination time and concentration of doped Eu~(2+) were1 300℃,4 h and 6%,respectively. The Maximum excitation wavelength of this sample was 394 nm,and the maximum emission wavelength was 589 nm. The emitting color of Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Eu~(3+)was red.
The Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Re( Re = Eu~(2+) ,Eu~(3+)) powders were prepared by high temperature solid state reaction method. The factors affecting the photoluminescence properties were systematically investigated,which including calcination temperature, calcination time and doping concentration of rare earth ions. The characterization analysis showed that the preparation conditions of Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Eu~(2+) were determined as follows: calcination temperature,time and doped Eu~(2+) concentration were 1 275℃,4 h and 4%,respectively. The Maximum excitation wavelength of this sample was 374 nm,and the maximum emission wavelength was 500 nm. The emitting color of Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Eu~(2+) was green. The process conditions of preparing Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Eu~(3+)were determined as follows: calcination temperature,calcination time and concentration of doped Eu~(2+) were1 300℃,4 h and 6%,respectively. The Maximum excitation wavelength of this sample was 394 nm,and the maximum emission wavelength was 589 nm. The emitting color of Ca_(1.9)(Si_(0.8)P_(0.2))O_4: Eu~(3+)was red.
引文
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[2]李优,李宗元,梁乃祥,等.共沉淀法合成YAl3(BO3)4∶Ce,Tb绿色荧光粉及其性能研究[J].哈尔滨理工大学学报,2012,17(4):97.
[3]STRZER T,DERONDEAU G,BERTSCHLER E M,et al.Superconductivity by Rare Earth Doping in the 1038-type Compounds[formula omitted]with RE=Y,La-Nd,Sm-Lu[J].Solid State Communications,2015,201:36.
[4]黄飞,董丽敏,吴泽,等.Sol-Gel法制备Y3Al5O12:Tb及烧结行为的研究[J].哈尔滨理工大学学报,2004,9(6):50.
[5]WANG X,LIU Q,BU Y,et al.Optical Temperature Sensing of Rare-earthion Doped Phosphors[J].Rsc Advances,2015,5(105):86219.
[6]李想,刘学达,于金英,等.水热法制备荧光碳量子点的研究[J].化学工程师,2016,30(7):22.
[7]DONG L M,WU K J,ZHAO J T,et al.Luminescence Performance of Red Phosphor K2ZnSiO4∶Eu3+for Biue Chip[J].Journal of Ovonic Research,2016,11(6):277.
[8]于峰,王义杰,刘威.Er:Li NbO3晶体生长及光损伤性能的研究[J].哈尔滨理工大学学报,2009,14(5):80.
[9]SETLUR A A.Phosphors for LED-based Solid-state Lighting[J].Electrochemical Society Interface,2009,18(4):32.
[10]吕震,赵晓旭,韦天新,等.Y2O3:Yb,Er纳米材料的制备及上转换发光研究[J].哈尔滨理工大学学报,2009,14(s1):106.
[11]TAGUCHI T.Present Status of White LED Lighting Technologies in Japan[J].Journal of Light&Visual Environment,2003,27(3):131.
[12]张鋆,董丽敏,姜建新,等.La3+掺杂Eu3+偏苯三酸邻菲咯啉三元配合物的合成和荧光性能[J].发光学报,2010,31(1):131.
[13]任炼,张鑫涛,赵丽萍,等.碳源选择对荧光碳量子点光致发光性能的影响[J].化学与粘合,2016,38(5):366.
[14]YE S,XIAO F,PAN Y X,et al.Phosphors in Phosphor-converted White Light-emitting Diodes:Recent Advances in Materials,Techniques and Properties[J].Materials Science&Engineering Reports,2010,71(1):1.
[15]XIE R J,Hirosaki N.Silicon-based Oxynitride and Nitride Phosphors for White LEDs-A Review[J].Science and Technology of Advanced Materials,2007,8(7):588.
[16]熊晓波,袁曦明,宋江齐,等.Gd3+/Si4+掺杂对Li ZnPO4∶Eu3+荧光粉发光性能的影响[J].硅酸盐学报,2016,44(2):340.
[17]ZHOU W L,HAN J,ZHANG X J,et al.Synthesis and Photoluminescence Properties of A Cyan-Emitting Phosphor Ca3(PO4)2∶Eu2+for White Light-Emitting Diodes[J].Optical Materials,2015,39:173.
[18]HAN J,ZHOU W,TANG M,et al.Control of Photoluminescence in Ca3-3x/7Y2x/7(PO4)2∶Eu2+Phosphors by Migration of the Dopant[J].Physica Status Solidi(RRL)-Rapid Research Letters,2015,9(8):485.
[19]王艳鑫,王喜贵.Eu3+掺杂La PO4-5SiO2复合材料的结构和发光性能研究[J].化工新型材料,2015(1).
[20]ZHOU W,MA X X,ZHANG M L,et al.Effect of Different REDopants on Phosphorescence Properties of Sr2Al2SiO7:Eu2+Phosphors[J].Journal of Rare Earths,2015,33(7):700.
[21]DING Y,ZHANG Y,WANG Z,et al.Photoluminescence of Eu Single Doped and Eu/Dy Codoped Sr2Al2SiO7Phosphors with Long Persistence[J].Journal of Luminescence,2009,129(3):294.
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