Original title:
Effect of heat treatment on the properties of sol-gel deposited ZnO seed layers
Authors:
Bašinová, Nikola ; Černohorský, Ondřej ; Grym, Jan ; Maixner, J. Document type: Papers Conference/Event: 9th International Conference on Nanomaterials - Research and Application (NANOCON), Brno (CZ), 20171018
Year:
2018
Language:
eng Abstract:
Zinc oxide nanorods as a potential material for nanoscale devices are prepared by chemical bath deposition (CBD). The effect of the quality of the sol-gel deposited seed layer on the vertical alignment of the nanorods to a silicon substrate is discussed. Emphasis is put on the investigation of the impact of the heat treatment on the properties of the seed layer deposited by dip-coating. The sol-gel method is a multi-stage process consisting of three principal steps: (i) preparation of a solution with suitable precursors, (ii) deposition of the precursor solution, and (iii) the heat treatment. The preheating needs to be performed to thermally decompose the zinc acetate precursor into zinc oxide seeds. Three different temperatures of preheating are compared (300 degrees C, 350 degrees C, 400 degrees C) followed by annealing in argon at 800 degrees C and the influence on the quality of the seed layers and vertical alignment of nanorods are discussed. When the preheating temperature is higher than 350 degrees C, the seed layer comprises smaller and denser crystallites with a preferential orientation along the c-axis. CBD growth of ZnO nanorods on these seed layers results in their good vertical alignment
Keywords:
Chemical bath deposition; Sol-gel; ZnO nanorods Project no.: GA17-00355S (CEP) Funding provider: GA ČR Host item entry: 9th International Conference on Nanomaterials - Research and Application (NANOCON 2017), ISBN 978-80-87294-81-9
Institution: Institute of Photonics and Electronics AS ČR
(web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences. Original record: http://hdl.handle.net/11104/0294803