[1]黄丽,黄嘉欣,陈美潇,等.碳纳米点的制备及其非线性光限幅性能研究[J].福建工程学院学报,2017,15(04):338-342.[doi:10.3969/j.issn.1672-4348.2017.04.007]
　Huang Li,Huang Jiaxin,Chen Meixiao,et al.Preparation and nonlinear optical limiting properties of carbon nanodots[J].Journal of FuJian University of Technology,2017,15(04):338-342.[doi:10.3969/j.issn.1672-4348.2017.04.007]
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碳纳米点的制备及其非线性光限幅性能研究()
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《福建工程学院学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第15卷
期数:
2017年04期
页码:
338-342
栏目:
出版日期:
2017-08-25

文章信息/Info

Title:
Preparation and nonlinear optical limiting properties of carbon nanodots
作者:
黄丽; 黄嘉欣; 陈美潇; 郑婵
福建工程学院材料科学与工程学院
Author(s):
Huang Li;  Huang Jiaxin;  Chen Meixiao;  Zheng Chan
College of Materials Science and Engineering, Fujian University of Technology
关键词:
碳材料;  碳纳米点;  线性光学性能;  非线性光学性能;  Z-扫描
Keywords:
carbon material;  carbon nanodot;  linear optical property;  nonlinear optical property;  Z-scan
分类号:
TB383.1
DOI:
10.3969/j.issn.1672-4348.2017.04.007
文献标志码:
A
摘要:
以肝素钠为碳源，通过水热合成法制备碳纳米点（CNDs），对所制得的CNDs形貌、组成及线性光学性能进行系统研究。结果表明，CNDs粒径均一，且表面富含羧基和羟基等官能团；在270 nm处有明显的紫外吸收峰。CNDs具有与激发波长相关的荧光特性，发射峰随激发波长增大的而红移。采用开孔Z-扫描法探索CNDs的非线性光学效应，结果表明,CNDs具有与能量相关的从饱和吸收向反饱和吸收转变的特性，其非线性吸收系数β和饱和能量IS分别为1.4×10-11m/W和8×1010W/m2。
Abstract:
Carbon nanodots (CNDs) were synthesized by a simple method of hydrothermal carbonization, using sodium heparin as carbon source. The morphology, structure and linear optical properties of the CNDs were investigated. The surface of the CNDs with uniform size is rich in carboxyl and hydroxyl groups. The CNDs show an obvious ultraviolet absorption peak at 270nm in the UV/Vis spectra. The CNDs have strong fluorescence properties related to excitation wavelengths, and the emission peak shifts with the increase of the excitation wavelengths. Open-aperture Z-scan technique was used to explore the nonlinear optical effects of the CNDs. The transformation from saturation absorption to reverse saturation absorption in the CNDs suspension was observed with the increase of the input light intensity. The nonlinear absorption coefficient β and the saturation energy IS were calculated to be 1.4×10-11m/W and 8×1010W/m2 respectively.

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更新日期/Last Update: 2017-08-25