Amorphous and photoluminescent crystalline silicon carbide nanoparticles synthesized by laser ablation in liquids

被引：7
|
作者：
Shuaib, E. P. [1 ]
Yogesh, Gaurav Kumar [1 ]
Sastikumar, D. [1 ]
机构：
[1] Natl Inst Technol, Tiruchirappalli 620015, India
来源：
MATERIALS TODAY-PROCEEDINGS | 2022年 / 50卷
关键词：
Silicon carbide; Laser ablation; Amorphous; Crystalline; Photoluminescence; QUANTUM DOTS; NANOMATERIALS;
D O I：
10.1016/j.matpr.2020.08.453
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Amorphous and crystalline SiC nanoparticles were synthesized via laser ablation of SiC micro-sized powder in water and ethanol. X-ray and HRTM analysis showed the amorphous nature of SiC nanoparticles with an average particle size of 44 nm in water and crystalline 6H-SiC polytype nanoparticles with an average size of 18 nm in ethanol. The direct and indirect bandgap of SiC nanoparticles were determined from UV-visible absorption spectra. PL emission characteristics were studied and crystalline SiC nanoparticles exhibit tunable PL emission covering UV to the visible region. (c) 2020 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the National Conference on Material Science.
引用
收藏
页码：2745 / 2750
页数：6
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