Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air

Daisuke Nakamura; Tetsuya Shimogaki; Toshinobu Tanaka; Fumiaki Nagasaki; Yuki Fujiwara; Mitsuhiro Higashihata; Hiroshi Ikenoue; Tatsuo Okada

doi:10.1117/12.2214054

Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air

Daisuke Nakamura, Tetsuya Shimogaki, Toshinobu Tanaka, Fumiaki Nagasaki, Yuki Fujiwara, Mitsuhiro Higashihata, Hiroshi Ikenoue, Tatsuo Okada

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

We synthesized magnesium (Mg)-doped ZnO microspheres by laser ablation of a ZnO sintered target containing magnesium oxide (MgO) with the fundamental of a Nd:YAG laser at 1064 nm. The well-spherical ZnO microcrystals with diameters of 1-20 μm were collected on a substrate which was put near the ablation spot. X-ray diffraction and micro-Raman spectrum indicate that the ZnO microspheres have a crystalline structure. Room-temperature photoluminescence properties of the microsphere were investigated under third harmonic generation of a Nd:YAG laser excitation at 355 nm. An ultraviolet (UV) lasing in whispering gallery mode (WGM) and blue-shift of the UV WGM peaks were observed from the Mg-doped ZnO microsphere.

Original language	English
Title of host publication	Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI
Editors	Beat Neuenschwander, Stephan Roth, Costas P. Grigoropoulos, Tetsuya Makimura
Publisher	SPIE
ISBN (Electronic)	9781628419702
DOIs	https://doi.org/10.1117/12.2214054
Publication status	Published - 2016
Event	Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI - San Francisco, United States Duration: Feb 15 2016 → Feb 18 2016

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9735
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI
Country/Territory	United States
City	San Francisco
Period	2/15/16 → 2/18/16

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.2214054

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Nakamura, D., Shimogaki, T., Tanaka, T., Nagasaki, F., Fujiwara, Y., Higashihata, M., Ikenoue, H., & Okada, T. (2016). Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air. In B. Neuenschwander, S. Roth, C. P. Grigoropoulos, & T. Makimura (Eds.), Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI Article 973511 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9735). SPIE. https://doi.org/10.1117/12.2214054

Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air. / Nakamura, Daisuke; Shimogaki, Tetsuya; Tanaka, Toshinobu et al.
Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI. ed. / Beat Neuenschwander; Stephan Roth; Costas P. Grigoropoulos; Tetsuya Makimura. SPIE, 2016. 973511 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9735).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nakamura, D, Shimogaki, T, Tanaka, T, Nagasaki, F, Fujiwara, Y, Higashihata, M, Ikenoue, H & Okada, T 2016, Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air. in B Neuenschwander, S Roth, CP Grigoropoulos & T Makimura (eds), Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI., 973511, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9735, SPIE, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI, San Francisco, United States, 2/15/16. https://doi.org/10.1117/12.2214054

Nakamura D, Shimogaki T, Tanaka T, Nagasaki F, Fujiwara Y, Higashihata M et al. Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air. In Neuenschwander B, Roth S, Grigoropoulos CP, Makimura T, editors, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI. SPIE. 2016. 973511. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2214054

Nakamura, Daisuke ; Shimogaki, Tetsuya ; Tanaka, Toshinobu et al. / Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air. Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXI. editor / Beat Neuenschwander ; Stephan Roth ; Costas P. Grigoropoulos ; Tetsuya Makimura. SPIE, 2016. (Proceedings of SPIE - The International Society for Optical Engineering).

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abstract = "We synthesized magnesium (Mg)-doped ZnO microspheres by laser ablation of a ZnO sintered target containing magnesium oxide (MgO) with the fundamental of a Nd:YAG laser at 1064 nm. The well-spherical ZnO microcrystals with diameters of 1-20 μm were collected on a substrate which was put near the ablation spot. X-ray diffraction and micro-Raman spectrum indicate that the ZnO microspheres have a crystalline structure. Room-temperature photoluminescence properties of the microsphere were investigated under third harmonic generation of a Nd:YAG laser excitation at 355 nm. An ultraviolet (UV) lasing in whispering gallery mode (WGM) and blue-shift of the UV WGM peaks were observed from the Mg-doped ZnO microsphere.",

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AB - We synthesized magnesium (Mg)-doped ZnO microspheres by laser ablation of a ZnO sintered target containing magnesium oxide (MgO) with the fundamental of a Nd:YAG laser at 1064 nm. The well-spherical ZnO microcrystals with diameters of 1-20 μm were collected on a substrate which was put near the ablation spot. X-ray diffraction and micro-Raman spectrum indicate that the ZnO microspheres have a crystalline structure. Room-temperature photoluminescence properties of the microsphere were investigated under third harmonic generation of a Nd:YAG laser excitation at 355 nm. An ultraviolet (UV) lasing in whispering gallery mode (WGM) and blue-shift of the UV WGM peaks were observed from the Mg-doped ZnO microsphere.

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Fabrication and bandgap engineering of doped ZnO microspheres by simple laser ablation in air

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