Abstract
We have succeeded in synthesiing the ZnO microspheres by laser ablation of a ZnO sintered target in air, and we have demonstrated ultraviolet whispering-gallery-mode (WGM) lasing 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 size of more than 30 μm microspheres were synthesized with increasing the laser fluence up to 440 J/cm 2 . 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 distribution of the microspheres and other fragments.
| Original language | English |
|---|---|
| Pages (from-to) | 1085-1089 |
| Number of pages | 5 |
| Journal | IEEJ Transactions on Electronics, Information and Systems |
| Volume | 135 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Jan 1 2015 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
Cite this
Synthesis of spherical ZnO microcrystals by laser ablation in air. / Nakamura, Daisuke; Tanaka, Toshinobu; Ikebuchi, Tatsuya; Ueyama, Takeshi; Higashihata, Mitsuhiro; Okada, Tatsuo.
In: IEEJ Transactions on Electronics, Information and Systems, Vol. 135, No. 9, 01.01.2015, p. 1085-1089.Research output: Contribution to journal › Article
}
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
PY - 2015/1/1
Y1 - 2015/1/1
N2 - We have succeeded in synthesiing the ZnO microspheres by laser ablation of a ZnO sintered target in air, and we have demonstrated ultraviolet whispering-gallery-mode (WGM) lasing 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 size of more than 30 μm microspheres were synthesized with increasing the laser fluence up to 440 J/cm 2 . 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 distribution of the microspheres and other fragments.
AB - We have succeeded in synthesiing the ZnO microspheres by laser ablation of a ZnO sintered target in air, and we have demonstrated ultraviolet whispering-gallery-mode (WGM) lasing 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 size of more than 30 μm microspheres were synthesized with increasing the laser fluence up to 440 J/cm 2 . 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 distribution of the microspheres and other fragments.
UR - http://www.scopus.com/inward/record.url?scp=84940662040&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84940662040&partnerID=8YFLogxK
U2 - 10.1541/ieejeiss.135.1085
DO - 10.1541/ieejeiss.135.1085
M3 - Article
VL - 135
SP - 1085
EP - 1089
JO - IEEJ Transactions on Electronics, Information and Systems
JF - IEEJ Transactions on Electronics, Information and Systems
SN - 0385-4221
IS - 9
ER -