One-step aqueous synthesis of highly luminescent hydrophilic AgInZnS quantum dots

被引：28

作者：

Liu, Yongfeng ^{[1
]}

Tang, Xiaosheng ^{[1
]}

Deng, Ming ^{[1
]}

Zhu, Tao ^{[1
]}

Bai, Yongzhong ^{[2
]}

Qu, Dingrong ^{[2
]}

Huang, Xianbin ^{[2
]}

Qiu, Feng ^{[2
]}

机构：

[1] Chongqing Univ, Coll Optoelect Engn, Key Lab Optoelect Technol & Syst, Educ Minist China, Chongqing 400044, Peoples R China

[2] SINOPEC Res Inst Safety Engn, State Key Lab Safety & Control Chem, Qingdao 266000, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2018年 / 202卷

关键词：

Aqueous synthesis; AgInZnS quantum dots; Photoluminescence; MPA; ONE-POT SYNTHESIS; AGINS2; NANOCRYSTALS; CU2+ DETECTION; NANOPARTICLES; LIGHT; PROBE; NANOCOMPOSITES;

D O I：

10.1016/j.jlumin.2018.05.040

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a one-step method to directly synthesize highly luminescent AgInZnS quantum dots (AIZS QDs) in aqueous media by using 3-mercaptopropionic acid as stabilizer with the quantum yield (QY) up to 41.2%, which is the highest for these hydrophilic QDs to the best of our knowledge. The aqueous-dispersible AIZS QDs are quasi-spherical and similar to 3 nm in diameter, possessing average fluorescence lifetime as long as 262.55 ns and exhibiting excellent stability in water. Simply by tailoring the stoichiometric ratio of Ag or Zn, the emission colors could be easily tuned from green to red, which also exhibits great potential in biological labelling and optoelectronic devices.

引用

页码：71 / 76

页数：6

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