TY - JOUR
T1 - Synthesis of Spherical ZnO Microcrystals by Laser Ablation in Air
AU - Nakamura, Daisuke
AU - Tanaka, Toshinobu
AU - Ikebuchi, Tatsuya
AU - Ueyama, Takeshi
AU - Higashihata, Mitsuhiro
AU - Okada, Tatsuo
N1 - Publisher Copyright:
© 2016 Wiley Periodicals, Inc.
PY - 2016/10/1
Y1 - 2016/10/1
N2 - We have succeeded in synthesizing the zinc oxide (ZnO) microspheres by laser ablation of a ZnO sintered target in air, and have demonstrated ultraviolet whispering-gallery-mode lasting from the sphere under ultraviolet pulsed laser excitation. In this study, we investigated the dependence of the laser fluence and the spot size on the growth of the ZnO microspheres. Large sizes of more than 30 μm microspheres were synthesized with increasing the laser fluence up to 440 J/cm2. Although undesired nanoparticles and fragments were also generated at high fluence and large ablation spot size, selective collection of the microspheres can be expected because of different emitting distributions of the microspheres and other fragments.
AB - We have succeeded in synthesizing the zinc oxide (ZnO) microspheres by laser ablation of a ZnO sintered target in air, and have demonstrated ultraviolet whispering-gallery-mode lasting from the sphere under ultraviolet pulsed laser excitation. In this study, we investigated the dependence of the laser fluence and the spot size on the growth of the ZnO microspheres. Large sizes of more than 30 μm microspheres were synthesized with increasing the laser fluence up to 440 J/cm2. Although undesired nanoparticles and fragments were also generated at high fluence and large ablation spot size, selective collection of the microspheres can be expected because of different emitting distributions of the microspheres and other fragments.
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U2 - 10.1002/ecj.11874
DO - 10.1002/ecj.11874
M3 - Article
AN - SCOPUS:84987750961
VL - 99
SP - 58
EP - 63
JO - Electronics and Communications in Japan
JF - Electronics and Communications in Japan
SN - 1942-9533
IS - 10
ER -