期刊
CERAMICS INTERNATIONAL
卷 47, 期 2, 页码 2131-2143出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2020.09.049
关键词
Zinc oxide nanowire; Catalytic vapor-liquid-solid growth; Catalyst-free vapor-solid growth; Low-temperature hydrothermal growth
资金
- National Research Foundation of Korea (NRF) - Korean Government [2015R1A5A1037668, 2020R1F1A1073760]
- DARPA Young Faculty Award
- National Research Foundation of Korea [2020R1F1A1073760] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
This study presents a comprehensive investigation into the fabrication of zinc oxide nanowires using three major growth methods: VLS, VS, and hydrothermal growth. Each growth method allows for tailored structural morphologies and functional features of the ZnO nanowires, providing a critical pathway for targeted applications in diverse fields such as energy conversion and harvesting, electronics, photonics, and smart and wearable sensors.
We present a comprehensive study of the fabrication of zinc oxide (ZnO) nanowires (NWs) with tailored structural morphologies and functional features by utilizing three major growth methods based on vapor-liquid solid (VLS), vapor-solid (VS), and hydrothermal growth mechanisms. The vertically aligned ZnO NW (ZNW) array can be constructed with tailored length, diameter, and density by controlled catalytic epitaxial VLS growth; the catalyst-free VS growth can create a hierarchical ZNW assembly onto complementary topological frameworks, such as transparent conducting oxides and carbon nanotubes; and the hydrothermal growth practically enables low-temperature growth of conformal ZNWs on large-area and flexible substrates. The growth mechanism and tailoring of the ZNW architectures for each growth strategy were investigated in detail, combined with rational analyses and parametric experiments. This study provides a critical route to the purposeful tailoring of ZNW architectures toward targeted ZnO-driven applications that require specific ZNW morphologies, assembly configurations, and substrate materials for many diverse fields including energy conversion and harvesting, electronics, photonics, and smart and wearable sensors.
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