CrystEngComm博客

无机闪烁体在检测电离辐射方面具有理想的性能，with potential applications including in nuclear instrumentation.  Scintillators are materials which produce light when they interact with ionising radiation allowing the radiation to be detected and quantified.  However,the methods used to prepare inorganic scintillators are a limitation to the development of further uses.  Growing crystals from the melt provides only a limited range of materials and,虽然玻璃或微晶玻璃的使用范围更广，these materials typically have a low light intensity.  Polycrystalline ceramics lie between single crystals and glasses in terms of properties.

在最近的一篇论文中，Dosovitskiy等。演示了用3d打印技术将闪烁体YAG:Ce(掺铈激活剂的钇铝石榴石)制备成多晶陶瓷。这是为Y实现的_2.97Ce_0.03艾尔₅O₁₂共沉淀，900度加热^oC.  A slurry of the resulting powder was then used to 3D-print green bodies using stereolithography.  A so-called green body contains the material of interest along with a binder,后者随后被加热除去。

经过脱脂和1600烧结^oC,the properties of the resulting ceramic material were compared with those of the corresponding YAG:Ce single crystals.  The ceramic showed a scintillation light yield more than 60% higher than that of the single crystals,当使用5.5兆电子伏α-particles。

Higher activator concentrations can be achieved using this preparation method than in single crystals and this is beneficial to the light yield.  3D printing allows the production of  shapes not available by other methods,free of defects and larger than 1 micrometer.  One possible application of this is in the production of luminescent materials for LED lighting devices.

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第一台3d打印复合无机多晶闪烁体

一个。Dosovitskiy,P。V。Karpyuk, P。V。Evdokimov,D。E。库兹涅佐娃,V。一个。Mechinsky,。E。Borisevich,一个。一个。Fedorov,V。我。Putlayev,一个。E。Dosovitskiy,M。V。Korjik

DOI: 10.1039 / C7CE00541E

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关达·基德拥有爱丁堡大学金属硼烷化学博士学位。新利手机客户端其他研究工作包括玻璃结构的光谱研究和有机金属电子转移反应以及新型无机荧光粉的制备。她出版了一本书，的分子,药物和恶作剧”,在2014年,目前正在对植物中发现的一些化学物质进行后续研究。

分形晶体图案，转移到裙子上，研究人员在一次设计竞赛中获奖

张主任,中国科技大学的张学鹏和他的团队最初打算为水性丙烯酸涂料构建一系列有机配体。新利手机客户端通过进行酮与酯之间的常规克莱森缩合反应，他们获得很多pyridine-substitutedβ-diketone毛茸茸的晶体化合物,随着吡啶环中氮取代位置的变化。

感兴趣吗?完整的故事可以读进去新利手机客户端化学世界。

原文可以在下面阅读自由访问直到9^th2017年6月:

曲面分形结构pyridine-substitutedβ-diketone晶体
Zongzheng钱云会,Dongxue李传来谢同庆,张学鹏，*杨贺，艾月洁和张国庆*
CrystEngComm,2017年,19日,2283 - 2287
DOI: 10.1039 / C7CE00462A