Tunable multicolor carbon dots prepared from well-defined polythiophene derivatives and their emission mechanism

被引：198

作者：

Guo, Liang ^{[1
,2
,3
]}

Ge, Jiechao ^{[1
,2
]}

Liu, Weimin ^{[1
,2
]}

Niu, Guangle ^{[1
,2
,3
]}

Jia, Qingyan ^{[1
,2
,3
]}

Wang, Hui ^{[1
,2
,3
]}

Wang, Pengfei ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Tech Inst Phys & Chem, CityU CAS Joint Lab Funct Mat & Devices, Beijing 100190, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

NANOSCALE | 2016年 / 8卷 / 02期

关键词：

GRAPHENE QUANTUM DOTS; LABEL-FREE DETECTION; NANODOTS SYNTHESIS; GREEN SYNTHESIS; SURFACE-STATE; FLUORESCENT; PHOTOLUMINESCENCE; LUMINESCENCE; NANOPARTICLES; RED;

D O I：

10.1039/c5nr07153d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Various functional precursors based on polythiophene derivatives are designed to prepare carbon dots (C-dots) with tunable emissions ranging from blue to near-infrared (NIR) at a single excitation wavelength (400 nm). The as-prepared C-dots demonstrate homogeneous size, superior optical properties, excellent water solubility, and low cytotoxicity. Thus, the C-dots are candidates for bio-imaging. A tunable photoluminescence mechanism is proposed to result from variations in the surface state and N content.

引用

页码：729 / 734

页数：6

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