Laser synthesis and size tailor of carbon quantum dots

被引：148

作者：

Hu, Shengliang ^{[1
,2
]}

Liu, Jun ^{[1
]}

Yang, Jinlong ^{[3
]}

Wang, Yanzhong ^{[2
]}

Cao, Shirui ^{[2
]}

机构：

[1] N Univ China, Minist Educ Sci & Technol, Elect Test & Measurement Lab, Key Lab Instrumentat Sci & Dynam Measurement, Taiyuan 030051, Peoples R China

[2] N Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Peoples R China

[3] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2011年 / 13卷 / 12期

基金：

山西省青年科学基金; 中国国家自然科学基金;

关键词：

Carbon nanoparticle; Laser ablation in liquid; Size control; Photoluminescence; Thermodynamic theory; OPTICAL-PROPERTIES; NANOPARTICLES; PHASE; NANOCRYSTALS; IRRADIATION; ABLATION;

D O I：

10.1007/s11051-011-0638-y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Carbon quantum dots (C-dots) with average sizes of about 3, 8, and 13 nm were synthesized by laser irradiation of graphite flakes in polymer solution. The obtained C-dots display size and excitation wavelength dependent photoluminescence behavior. The size control of C-dots can be realized by tuning laser pulse width. The original reason could be the effects of laser pulse width on the conditions of nucleation and growth of C-dots. Compared with short-pulse-width laser, the long-pulse-width laser would be better fitted to the size and morphology control of nanostructures in the different material systems.

引用

页码：7247 / 7252

页数：6

共 30 条

[1] Controlled size manipulation of free gold nanoparticles by laser irradiation and their facile bioconjugation [J].