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Observation of cotton-like bismuth oxide (β-Bi2O2.5) prepared via pulsed laser ablation deposition


Waje, Samaila Bawa and Yahya, Noorhana and Ramli, Irmawati (2009) Observation of cotton-like bismuth oxide (β-Bi2O2.5) prepared via pulsed laser ablation deposition. Pertanika Journal of Science & Technology, 17 (2). pp. 299-306. ISSN 0128-7680; ESSN: 2231-8526

Abstract / Synopsis

Monoclinic bismuth oxide (α-Bi2O3) nanoparticles were prepared via precipitation method and irradiated with a pulsed laser forming thin films. Their phase and surface morphological properties were investigated using x-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM) and high resolution transmission electron microscopy (HR-TEM). The XRD analysis shows the phase transformation to a partially crystalline tetragonal phase β-Bi2O3 thin film. The SEM micrograph of the nanoparticles, with an average crystal size of 72 nm, was seen to form a thin film with a peculiar structure, coined as “cotton-likeâ€�, is attributed to the high surface energy absorbed by the nanoparticles during ablation. The HR-TEM micrograph shows the particulate with a clearly defined interlayer spacing.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
Publisher: Universiti Putra Malaysia Press
Keywords: Nanostructures; Thin film; Laser ablation; X-ray diffraction
Depositing User: Noor Syafini Zamani
Date Deposited: 20 Nov 2015 14:44
Last Modified: 20 Nov 2015 14:44
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