Low crystal quality of the hedgehog-like ZnO nanorods grown by hydrothermal process without seeding layer

0483631 - FZÚ 2018 RIV FR eng A - Abstrakt
Remeš, Zdeněk - Buryi, Maksym - Šimek, Daniel - Ledinský, Martin - Mičová, J.
Low crystal quality of the hedgehog-like ZnO nanorods grown by hydrothermal process without seeding layer.
E-MRS 2017 Spring Meeting and Exhibit. Strasbourg: European Materials Research Society, 2017.
[E-MRS 2017 Spring Meeting and Exhibit. 22.05.2017-26.05.2017, Strasbourg]
Grant CEP: GA ČR GC16-10429J; GA MŠMT LM2015088; GA MŠMT LO1409
Grant ostatní: AV ČR(CZ) KONNECT-007
Program: Bilaterální spolupráce
Institucionální podpora: RVO:68378271
Klíčová slova: ZnO * EPR * XRD
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)

Zinc oxide (ZnO) nanorods are nowadays a subject of a large attention due to their interesting physical properties such as the direct band gap, large exciton binding energy, the optical transparency, tuinable electrical conductivity, and the high thermal conductivity. Our interest is based on the low cost ZnO nanorods mass production using chemical methods. In this study we focus on correlation between morphology, crystalographic structure and defects in the hedgehog -like ZnO nanostructures prepared by the hydrothermal growth without seeding layer. The lack of the seeding layer leads to the random growth of low quality nanocrystals as shown by SEM, XRD and Raman spectroscopy. The localized defect states below the optical absorption edge were characterized by the photoluminescence and optical absorption spectroscopy in a broad spectral range from UV to IR.
Trvalý link: http://hdl.handle.net/11104/0278847