Eu3+ luminescence enhancement by intercalation of benzenepolycarboxylic guests into Eu3+-doped layered gadolinium hydroxide
Eu3+ luminescence enhancement by intercalation of benzenepolycarboxylic guests into Eu3+-doped layered gadolinium hydroxide
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DOI：
10.1016/j.materresbull.2014.01.033
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发表时间：
2014-05
影响因子：
5.4
通讯作者：
Qingyang Gu;Guohua Pan;M. Teng;Gailing Huang;Genban Sun;Shulan Ma;Xiaojing Yang
中科院分区：
文献类型：
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作者：
Qingyang Gu;Guohua Pan;M. Teng;Gailing Huang;Genban Sun;Shulan Ma;Xiaojing Yang
两种苯多羧酸有机敏化剂，1,3,5-苯三甲酸（BTA）和1,2,4,5-苯四甲酸（BA），被插入到NO3-型Eu3+掺杂的层状氢氧化钆（NO3-LGdH:Eu）的画廊中。采用 CHN 分析、FTIR 和 SEM 来表征所制备的有机/无机杂化物的插层结构。每单位电荷的面积（Scharge）用于解释插层结构和层间客体的排列。两种有机化合物的不同结构导致了客体的不同排列。光致发光研究表明，由于有机客体和Eu3+中心之间的有效能量转移，两种有机化合物尤其是BA显着增强了Eu3+的红色发光。
Two benzenepolycarboxylic organic sensitizers, 1,3,5-benzenetricarboxylic acid (BTA) and 1,2,4,5-benzenetetracarboxylic acid (BA), were intercalated into the gallery of NO3−type Eu3+-doped layered gadolinium hydroxide (NO3–LGdH:Eu). CHN analysis, FTIR, and SEM were employed to characterize the intercalation structures of the as-prepared organic/inorganic hybrids. The area per unit charge (Scharge) was used to explain the intercalation structure and the arrangement of the interlayer guests. Different structures of the two organic compounds resulted in varied arrangement of guests. Photoluminescence studies indicated that both of the two organic compounds especially BA markedly enhanced the red luminescence of Eu3+due to efficient energy transfer between the organic guests and Eu3+centers.