Photostable and efficient red-emitters based on zeolite L crystals
Photostable and efficient red-emitters based on zeolite L crystals
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DOI：
10.1039/c1jm12282g
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发表时间：
2011-09
影响因子：
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通讯作者：
Yanxia Ding;Yige Wang;Huanrong Li;Z. Duan;Haohui Zhang;You‐Xuan Zheng
中科院分区：
文献类型：
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作者：
Yanxia Ding;Yige Wang;Huanrong Li;Z. Duan;Haohui Zhang;You‐Xuan Zheng
采用瓶中船程序将气相中的2-噻吩甲酰三氟丙酮(TTA)或TTA和1，10-菲咯啉(Phen)从气相装入Eu3+-ZL晶体的孔道中，经氨气处理后，获得了光稳定性和高效的红色发光主客体材料。用X射线衍射仪、扫描电子显微镜、吸收光谱和光致发光光谱对合成的Eu3+(Tta)x-ZL和Eu3+(Tta)x(Phen)y-ZL主客体材料进行了表征。本工作取得了两个重要的发现：(1)氨气处理可以显著提高主客体材料的Eu3+离子的发射强度和寿命；(2)包裹在ZL晶体中的Eu(III)络合物具有显著的光稳定性。
Photostable and efficient red-emitting host–guest materials have been obtained employing a ship in a bottle procedure by loading 2-thenoyltrifluoroacetone (tta) or tta and 1,10-phenthroline (phen) from gas phase into the channels of Eu3+-ZL crystals that exhibit disc-shaped morphology followed by treatment with ammonia gas. The resulting Eu3+(tta)x-ZL and Eu3+(tta)x(phen)y-ZL host–guest materials were characterized with XRD, SEM, absorption and photoluminescence spectroscopy. Two key findings have been made in this work: (1) The emission intensity and the lifetime of Eu3+ ions of the host–guest materials can be significantly increased by treatment with ammonia gas, and (2) the encapsulated europium(III) complexes in ZL crystals show remarkably increased photostability.