Controlling the Crystallite Size of Zinc Oxide Nanorods via Chemical Bath Deposition and Post-Hydrothermal Treatment

Amalia Sholehah; Akhmad Herman Yuwono; Cyndi Rinaldi Rimbani

doi:10.4028/www.scientific.net/MSF.737.28

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HomeMaterials Science ForumMaterials Science Forum Vol. 737Controlling the Crystallite Size of Zinc Oxide...

Controlling the Crystallite Size of Zinc Oxide Nanorods via Chemical Bath Deposition and Post-Hydrothermal Treatment

Abstract:

ZnO nanorods were deposited on ITO glass substrate via chemical bath deposition at low temperature of 90°C. The seeding solution was made by dissolving zinc nitrate tetrahydrate and methenamine in cool water (5°C). The as-synthesized ZnOs were further subjected to post-hydrothermal treatment series. The results of scanning electron microscope (SEM) studies showed that the ZnO nanorods were grown as vertically-aligned hexagonal structure, while x-ray diffraction (XRD) patterns showed a high intensity of [002] peak. The absorption spectra of the as-synthesized sample indicated a strong absorption peak near the UV region. After post-hydrothermal treatments, the absorption was slightly shifted to visible region. The ZnO nanorods sample derived from post-hydrothermal treatment at 150°C for 12 hours has the largest crystallite size of 269.402 nm and the lowest band gap energy, E_g value of 3.205 eV.

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Periodical:

Materials Science Forum (Volume 737)

Pages:

28-32

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.737.28

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Online since:

January 2013

Authors:

Amalia Sholehah, Akhmad Herman Yuwono, Cyndi Rinaldi Rimbani

Keywords:

Chemical Bath Deposition (CBD), Post-Hydrothermal Treatment, Seeding Solution, ZnO Nanorod

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