Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Relationship between the Laser Ablated Si Substrate and the Synthesized Materials

Not Accessible

Your library or personal account may give you access

Abstract

Laser ablation has emerged as a novel method to synthesize a large variety of nanomaterials.1-7 Currently, most works merely focus on the material synthesis using laser ablation technique with little attention to the correlation of the ablated substrates with the synthesized materials. This work is aimed at filling this gap and giving new insights based on laser ablation of single crystal diamond-cubic (dc) (400) Si in air. Polycrystallization is a ubiquitous phenomenon occurring during laser ablation of Si. The polycrystallization rate of the ablated areas increases with increasing the laser powers, which well explains the polycrystalline instinct of the synthesized nanomaterials. Faster cooling rates of the laser-generated molten Si layers over their nucleation rates result in the surface amorphoization. With the aid of laser-generated shock waves, the molten layers together with the newly formed polycrystalline Si materials will be pushed upward in air to solidify amorphous SiOx encapsulated polycrystalline Si composites. This work tends to remind the researchers to pay more attention to the relationship between the ablated surfaces and the collected nanomaterials no matter where the laser ablation is implemented, in either air or liquids or vacuum.

© 2017 Japan Society of Applied Physics, Optical Society of America

PDF Article
More Like This
Nano particle production by laser ablation and metal sputtering on Si-Wafer substrate

Mohammad Hossein Azhdast, Ghassem Azdasht, Heinrich Lüdeke, Klaus-Dieter Lang, and Veronika Glaw
AM5A.3 Advanced Solid State Lasers (ASSL) 2015

Tunable Redox Property of Silver Deposited TiO2 Nanocomposite Synthesized by Pulsed Laser Ablation

Rui Zhou and Shengdong Lin
JTu5A.76 CLEO: Applications and Technology (CLEO:A&T) 2017

Laser Ablation by Femtosecond Synthesized Waveforms

Ci-Ling Pan, Chih-Hsuan Lin, Chan-Shan Yang, and Alexey Zaytsev
SM1O.3 CLEO: Science and Innovations (CLEO:S&I) 2018

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved