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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 15 — Jul. 28, 2014
  • pp: 18707–18714

Zinc oxide porous nano-cages fabricated by laser ablation of Zn in ammonium hydroxide

Shuang Li, Ming Chen, and XiangDong Liu  »View Author Affiliations

Optics Express, Vol. 22, Issue 15, pp. 18707-18714 (2014)

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We report the successful synthesis of ZnO porous nano-cages with controllable hollow spaces by simply using laser ablation of Zn target in liquid medium containing deionized water and ammonia (Vwater:Vammonia = 7:1~5:1). In addition to the porous surface, the created interior space of the ZnO nano-cage substantially increases with the ammonia concentration. The related growth mechanism has been illustrated based on the ultra-rapid alkaline etching process. Moreover, numerous Zn(NH3)42+ clusters generated by the selective etching route readily penetrate into the ZnO porous structures and can be embedded in these unique nano-cages. It is envisaged that these composite ions/ ZnO porous nano-cages have significant implications for gas sensing and catalytic applications. The synthetic scheme used here should also be applicable to other semiconductors.

© 2014 Optical Society of America

OCIS Codes
(350.3390) Other areas of optics : Laser materials processing
(220.4241) Optical design and fabrication : Nanostructure fabrication

ToC Category:
Laser Microfabrication

Original Manuscript: June 12, 2014
Manuscript Accepted: July 16, 2014
Published: July 25, 2014

Shuang Li, Ming Chen, and XiangDong Liu, "Zinc oxide porous nano-cages fabricated by laser ablation of Zn in ammonium hydroxide," Opt. Express 22, 18707-18714 (2014)

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