Selective hydrothermal growth of MnO2 nanostructures using laser under ambient conditions

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

doi:10.1117/12.2542770

2 March 2020 Selective hydrothermal growth of MnO₂ nanostructures using laser under ambient conditions

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

Proceedings Volume 11291, Quantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII; 112910R (2020) https://doi.org/10.1117/12.2542770
Event: SPIE OPTO, 2020, San Francisco, California, United States

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.

Citation Download Citation

Suwon Hwang, Heejung Kong, Tae Seung Hwang, and Junyeob Yeo "Selective hydrothermal growth of MnO₂ nanostructures using laser under ambient conditions", Proc. SPIE 11291, Quantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII, 112910R (2 March 2020); https://doi.org/10.1117/12.2542770

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