Effect of laser pulse parameters on the size and fluorescence of nanodiamonds formed upon pulsed-laser irradiation

被引：16

作者：

Bai, Peikang ^{[2
]}

Hu, Shengliang ^{[1
,2
]}

Zhang, Taiping ^{[3
]}

Sun, Jing ^{[3
]}

Cao, Shirui ^{[2
]}

机构：

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

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

[3] Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2010年 / 45卷 / 07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：

Optical materials; Laser deposition; Crystal structure; Luminescence; CARBON NANOTUBES; NANOPARTICLES; NANOCRYSTALS; DYNAMICS; DEFECTS; BRIGHT; DOTS;

D O I：

10.1016/j.materresbull.2010.03.009

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

The size of nanodiamonds formed upon laser irradiation could be easily controlled over simply adjusting laser pulse parameters. The stable size and structure of nanodiamonds were mostly determined by laser power density and pulse width. Both large nanodiamonds with multiply twinning structure (MTS) and small nanodiamonds with single crystalline structure (SCS) emitted strong visible light after surface passivation, and their fluorescence quantum yield (QY) was 4.6% and 7.1%, respectively. (C) 2010 Elsevier Ltd. All rights reserved.

引用

收藏

页码：826 / 829

页数：4

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