Nanosecond pulsed laser induced self-organized nano-dots patterns on GaSb surface

Yoshida, Yutaka; Oosawa, Kazuya; Wajima, Jyunya; Watanabe, Seiichi; Matsuo, Yasutaka; Kato, Takahiko

Nanosecond pulsed laser induced self-organized nano-dots patterns on GaSb surface

Yoshida, Yutaka; Oosawa, Kazuya; Wajima, Jyunya et al.

Applied surface science, 2014, 307, 24-27

Permalink : https://hdl.handle.net/2115/56635

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アクセス権	open access
URI	https://hdl.handle.net/2115/56635
タイトル	Nanosecond pulsed laser induced self-organized nano-dots patterns on GaSb surface
著者	Yoshida, Yutaka ; Oosawa, Kazuya ; Wajima, Jyunya ; Watanabe, Seiichi ; Matsuo, Yasutaka ; Kato, Takahiko
著者名 Yoshida, Yutaka
著者名 Oosawa, Kazuya
著者名 Wajima, Jyunya
e-Rad_Researcher 60241353 著者名 Watanabe, Seiichi
e-Rad_Researcher 90374652 著者名 Matsuo, Yasutaka
著者名 Kato, Takahiko
言語	英語
キーワード	Nanosecond pulsed laser irradiation
	Self organization
	Nanodots patterns
	Gallium antimonide
発行日	2014-07-15
出版者	Elsevier
収録物名	Applied surface science
巻(号)	307
ページ	24-27
抄録	We report a technique for formation of two-dimensional (2D) nanodot (ND) patterns on gaillium antimoide (GaSb) using a nanosecond pulsed laser irradiation with 532 nm wavelength. The patterns have formed because of the interference and the self-organization under energy deposition of the laser irradiation, which induced the growth of NDs on the local area. The NDs are grown and shrunken in the pattern by energy depositions. In the laser irradiation with average laser energy density of 35 mJ cm(-2), large and small NDs are formed on GaSb surface. The large NDs have grown average diameter from 160 to 200 nm with increase of laser pulses, and the small NDs have shrunken average diameter from 75 to 30 nm. The critical dot size is required about 107 nm for growth of the NDs in the patterns. Nanosecond pulsed laser irradiation can control the self-organized ND size on GaSb in air as a function of the laser pulses.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0169-4332
NCID	AA10503400
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.apsusc.2014.03.093