Synthesis, microstructure and optical characterization of zirconium oxide nanostructures
Source abstract
Abstract
Zirconium oxide (ZrO2) nanostructures were synthesized by hydrothermal route. Surface morphology analysis depicts the formation of the nanobars and hexagonal-shaped nanodiscs at different synthesis conditions. The structural analysis confirms that the as-synthesized ZrO2 product is of pure monoclinic phase (m-ZrO2) with crystallite size of about 25 nm. The product consists of monodispersed nanoparticles of uniform composition,highpurity,andcrystallinity.TheRamanspectraarequantitativelyanalyzedandtheobservedpeaksareattributedtovariousvibration modes of the m-ZrO2. The UV‐vis absorption spectrum showed a strong absorption peak at about 292 nm and the estimated optical band gap was around 3.57 eV. Photoluminescence (PL) spectrum of ZrO2 nanostructure showed a strong and broad emission peak at around 410 nm at room temperature, which can be attributed to the ionized oxygen vacancy in the material. # 2009 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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Research context
OpenAlex topics: Semiconductor materials and devices · Electronic and Structural Properties of Oxides · Catalytic Processes in Materials Science
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