CN101377012B - 一种发光晶体材料多磷酸钠铽晶体 - Google Patents

一种发光晶体材料多磷酸钠铽晶体 Download PDF

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CN101377012B
CN101377012B CN 200710009428 CN200710009428A CN101377012B CN 101377012 B CN101377012 B CN 101377012B CN 200710009428 CN200710009428 CN 200710009428 CN 200710009428 A CN200710009428 A CN 200710009428A CN 101377012 B CN101377012 B CN 101377012B
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terbium
natb
sodium polyphosphate
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程文旦
张�浩
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Fujian Institute of Research on the Structure of Matter of CAS
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Abstract

一种发光晶体材料多磷酸钠铽晶体，属于发光材料及其合成。该晶体材料属单斜晶系，空间群为P21/n，单胞参数为a＝7.1841(5)，b＝13.0485(9)，c＝9.7748
Figure D07109428220070921A000011
β＝90.53°，V＝916.27
Figure D07109428220070921A000012
Z＝4。采用高温固相方法合成多磷酸钠铽单晶，将充分研磨均匀的混合原料置于铂坩埚中，放入箱式炉中加热合成，在最高温恒温，然后缓慢冷却，降至室温后可得到多磷酸钠铽单晶。该晶体材料用于小型高功率固体激光器和闪烁材料。

Description

一种发光晶体材料多磷酸钠铽晶体
技术领域
本发明属于发光材料及其合成。 
背景技术
目前，国内外研究者正努力开发出不同波段的发光材料，以满足实际应用需要。例如：红宝石激光晶体(Cr:Al2O3)，其基质晶体本身不发光，必须掺入少量的激活离子Cr3+，才能受激发而产生激光，同样，掺铷的钇铝石榴石(Nd:YAG)，其基质晶体为Y3Al5O12，激活离子Nd3+，基质晶体主要是氧化物和氟化物单晶，而激活离子主要是过度金属和三价稀土离子。而材料本体的发光鲜有报道。 
发明内容
本发明的目的在于设计一种不需要繁琐的制备途径和复杂的光学设计，其材料本体就可以在激发光下发出一定特征波长的光，以满足实际应用需要，因此我们合成出了一种新的光致发光晶体材料-多磷酸钠铽。 
多磷酸钠铽(NaTb(PO3)4)属单斜晶系，空间群为P21/n，单胞参数为a＝7.1841(5)，b＝13.0485(9)， 
Figure 150448DEST_PATH_G200710009428220080104D000011
β＝90.53°， Z＝4。它的三维结构为Na原子位于有(PO4)3-螺旋双链和铽氧多面体所构成的三维网络结构的孔洞之中，见附图1。在这种结构中，以四个PO4基团为循环单位，通过共用定点的方式沿a轴方向相连，形成(PO4)3-螺旋双链，见附图2。每个TbO8多面体与一个NaO8多面体共顶点，与二个NaO8多面体共面，TbO8多面体彼此孤立存在。 
该晶体在Na2O-Te4O7-P2O5-体系中采用高温固相反应合成，选用Na2CO3，Tb4O7和NH4H2PO4作为反应原料，将按摩尔比Na∶Tb∶P＝7∶1∶12称好的Na2CO3，Tb4O7与NH4H2PO4研磨，预烧后研磨，最后在690-710℃恒温，然后以每小时2℃的速率降温到500℃，最后自然冷却到室温，在坩埚底部得到许多无色透明的针状晶体。 
这种无机磷酸盐的结构和发光行为在国内外均未见报道，它的优势在于在一定的激发波长下实现可见光发射，制备工艺简单，生产成本低。预期在制备小型高功率固体激光器和开拓新的发光或闪烁材料中得到应用。 
附图说明
图1为多磷酸钠铽(NaTb(PO3)4)晶体沿b轴方向的结构； 
图2为沿a轴的(PO4)3-螺旋双链结构。 
具体实施方式
将按摩尔比Na∶Tb∶P＝7∶1∶12称好的Na2CO3，Tb4O7与NH4H2PO4研磨，预烧后研磨，最后在690-710℃恒温，然后以每小时2℃的速率降温到500℃，最后自然冷却到室温，在坩埚底部得到许多无色透明的针状晶体。 
对该晶体进行了单晶X-射线衍射晶体学分析知其为多磷酸钠铽，其晶体学参数如上所述，结构如附图1和2所示。 

Claims (1)

1.一种发光晶体材料多磷酸钠铽的制备方法，该晶体材料属于单斜晶系，空间群为P21/n，单胞参数为
Figure FSB00000862136200011
β＝90.53°，
Figure FSB00000862136200012
Z＝4，用于小型高功率固体激光器和闪烁材料，其特征在于：将按摩尔比Na∶Tb∶P＝7∶1∶12称好的Na2CO3、Tb4O7与NH4H2PO4研磨，预烧后研磨，最后在690-710℃恒温，然后以每小时2℃的速率降温到500℃，最后自然冷却到室温，得到无色透明的针状晶体。
CN 200710009428 2007-08-30 2007-08-30 一种发光晶体材料多磷酸钠铽晶体 Expired - Fee Related CN101377012B (zh)

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CN106480500B (zh) * 2016-10-08 2019-04-23 河南理工大学 一种光致发光晶体材料硼酸镨钾及其制备方法和应用
CN106868591A (zh) * 2017-02-27 2017-06-20 河南理工大学 一种新型发光晶体材料磷酸镝钠的制备、性能及用途

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855144A (en) * 1963-04-16 1974-12-17 Owens Illinois Inc Luminescent device, process, composition, and article
US4894583A (en) * 1986-07-14 1990-01-16 American Telephone And Telegraph Company, At&T Bell Laboratories Display devices with yttrium orthosilicate phosphors
US4935934A (en) * 1986-06-10 1990-06-19 Centre National De La Recherche Scientifique Mixed lanthanide-magnesium gallates and laser using monocrystals of these gallates
CN1763269A (zh) * 2005-09-14 2006-04-26 石春山 短波受激发射激光晶体

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855144A (en) * 1963-04-16 1974-12-17 Owens Illinois Inc Luminescent device, process, composition, and article
US4935934A (en) * 1986-06-10 1990-06-19 Centre National De La Recherche Scientifique Mixed lanthanide-magnesium gallates and laser using monocrystals of these gallates
US4894583A (en) * 1986-07-14 1990-01-16 American Telephone And Telegraph Company, At&T Bell Laboratories Display devices with yttrium orthosilicate phosphors
CN1763269A (zh) * 2005-09-14 2006-04-26 石春山 短波受激发射激光晶体

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