Enhanced photoluminescence of layered terbium hydroxides by graphene quantum dots in-situ synthesized in the interlayer

被引：1
作者：
Sang, Song [1 ,2 ]
Shao, Baiyi [1 ,2 ]
Zhang, Xiaobao [1 ]
Guo, Aoping [1 ]
Cui, Fangming [2 ]
Yang, Xiaojing [1 ]
机构：
[1] Beijing Normal Univ, Coll Chem, Beijing Key Lab Energy Convers & Storage Mat, 19 Xinjiekouwai St, Beijing 100875, Peoples R China
[2] China Acad Space Technol, Qian Xuesen Lab Space Technol, 104 Youyi Rd, Beijing 100094, Peoples R China
来源：
OPTICAL MATERIALS | 2021年 / 120卷
基金：
美国国家科学基金会;
关键词：
Graphene quantum dot; Layered terbium hydroxide; Hydrothermal carbonization; Sensitization; Photoluminescence; INTERCALATION;
D O I：
10.1016/j.optmat.2021.111424
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Graphene quantum dots (GQDs) intercalated layered terbium hydroxides (LTbH) were prepared through in-situ hydrothermal carbonization of the intercalated citrate anions (CA) and showed an enhanced photoluminescence (PL) due to the sensitization of GQDs for LTbHs. Structural and compositional analysis indicated the GQDs were consisted of well-identified hexagonal lattice of graphene, together with some defects caused by oxygencontaining functional groups. The basal spacings decreased from 8.6 angstrom of NO3--LTbHs to 7.3 angstrom of GQD-LTbHs resulted by the strong interaction between the intercalated GQDs and LTbHs.
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页数：4
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