File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

정후영

Jeong, Hu Young
UCRF Electron Microscopy group
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Piezoelectricity of picosecond laser-synthesized perovskite BaTiO3 nanoparticles

Author(s)
Choi, InsungLee, Su-JinKim, Jong ChanKim, Yeon-gyuHyeon, Dong YeolHong, Kyong-SooSuh, JeongShin, DongsigJeong, Hu YoungPark, Kwi-Il
Issued Date
2020-05
DOI
10.1016/j.apsusc.2020.145614
URI
https://scholarworks.unist.ac.kr/handle/201301/52829
Fulltext
https://www.sciencedirect.com/science/article/pii/S0169433220303706?via%3Dihub
Citation
APPLIED SURFACE SCIENCE, v.511, pp.145614
Abstract
Flexible energy harvesters based on piezoelectric nanomaterials have attracted great attention because they enable a self-powered system that converts electric energy from ambient energy resources. To achieve perovskite-structured piezoelectric nanopowders, most studies have utilized multi-step chemical-based hydrothermal reaction with repeat purification processes, which results in time-consuming production, low-yield production, and the inevitable existence of second phase. As an alternative that addresses the drawbacks of previous synthesis methods, the ultrafast laser processing based on cold ablation is highly promising for nanomaterial synthesis. In this work, we investigated the feasibility of synthesizing BaTiO3 nanoparticles by the picosecond laser ablation of a bulk BaTiO3 target in an ethanol solvent. The picosecond laser-synthesized BaTiO3 nanoparticles have a spherical shape with a size of similar to 300 nm and typical perovskite crystallinity with tetragonal phase. To investigate the piezoelectric response from BaTiO3 nanoparticles, we used a piezoresponse force microscope and confirmed the piezoelectric charge constant of similar to 130 pm.V-1. The results indicate the viability of synthesizing piezoelectric ceramic nanoparticles by the laser ablation of a bulk target in a liquid environment.
Publisher
ELSEVIER
ISSN
0169-4332
Keyword (Author)
Picosecond laserLaser ablation in liquidBaTiO3 nanoparticlesPiezoelectric
Keyword
THIN-FILM NANOGENERATORNANOCOMPOSITE GENERATORLARGE-AREAABLATIONPARTICLESNANOWIRESTRANSPARENTTITANIUM

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.