Journal
MATERIALS TODAY CHEMISTRY
Volume 24, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mtchem.2022.100921
Keywords
Nanostructured zinc oxide (ZnO); Flexible sheets; Space engineering applications; Chemical growth; Thermal stability
Funding
- National Research Foundation of Korea [2018R1A5A1025511]
- National Research Foundation of Korea [2018R1A5A1025511] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Zinc oxide nanorods were developed on stainless steel and glass substrates using spray pyrolysis and chemical bath deposition techniques. After exposure to shock waves, the nanorods exhibited sustainable surface morphology and crystalline quality, attributed to their slantly overlapped morphology and high melting temperature.
Zinc oxide (ZnO) nanorods were developed on stainless steel (SS) sheets as well as glass substrates in two steps by adopting well-established two different chemical methods namely, spray pyrolysis and chemical bath deposition techniques. Then, the structures were exposed to dynamically generated shock waves in a home-built shock tunnel. All the as-grown and shock waves exposed structures were characterized with advanced analytical techniques. Surface morphology and structural studies reveal that the as-grown nanostructured films over the both SS and glass substrates possess nanorods-like surface morphology; however, they exhibited (101) and (001) orientations as predominant orientations, respectively. From micro Raman analysis, it is noticed that the nanorod structures grown on both surfaces have good phase purity and crystalline quality. On the other hand, the cathodoluminescence studies show that these hydrothermally grown ZnO nanorods possess a large number of native defects. Finally, the ZnO nanorods exposed to shock waves generated with a temperature and pressure of ca.-20,000 K and-6 MPa for a short duration of 2-3 ms exhibited superb sustainability in terms of surface morphology as well as crystalline quality, which is mainly attributed to the slantly overlapped morphology as well as the high melting temperature of ZnO nanorods. (c) 2022 Elsevier Ltd. All rights reserved.
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