Selective hydrothermal growth of MnO2 nanostructures using laser under ambient conditions

Suwon Hwang, Heejung Kong, Tae Seung Hwang, Junyeob Yeo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this research, we present selective and rapid growth method of MnO2 nanostructures by laser. MnO2 nanostructures directly grow on metal layered substrate under ambient conditions. The MnO2 nanostructures grow through micro temperature field which is photothermally generated by continuous wave laser. Hemi-urchin shaped nanowire array grows about 5μm length and show 12.5 times faster than conventional hydrothermal method. We characterize analytically the growth mechanism of MnO2 nanostructures according to the laser irradiation time. In addition, MnO2 nanostructure shows different morphologies by adjusting laser powers and precursor concentrations.

Original languageEnglish
Title of host publicationQuantum Dots, Nanostructures, and Quantum Materials
Subtitle of host publicationGrowth, Characterization, and Modeling XVII
EditorsDiana L. Huffaker, Holger Eisele
PublisherSPIE
ISBN (Electronic)9781510633452
DOIs
StatePublished - 2020
EventQuantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII 2020 - San Francisco, United States
Duration: 5 Feb 2020 → …

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11291
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceQuantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII 2020
Country/TerritoryUnited States
CitySan Francisco
Period5/02/20 → …

Keywords

  • Hydrothermal growth
  • Low temperature growth
  • MnO2 nanostructure
  • One-step direct growth
  • Selective local laser growth

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