Fabrication Of SnO2 Three Dimentional Complex Microcrystal Chains By Carbothermal Reduction Method

School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Dwarka, New Delhi 110078, India

Adv. Mater. Lett., 2015, 6 (2), pp 148-152

DOI: 10.5185/amlett.2015.5681

Publication Date (Web): Feb 08, 2015

Copyright © IAAM-VBRI Press

E-mail: smiuac@gmail.com

Abstract

Three dimensional (3D) complex microcrystal chains of SnO₂ have been fabricated by simple carbothermal reduction based vapour deposition method. The structural and optical properties of the as-synthesized materials were well characterized by field emission scanning electron microscopy (FESEM) with energy dispersive X-ray spectroscopy, X-ray diffraction (XRD), Raman spectroscopy and photoluminescence spectroscopy. FESEM studies revealed the formation of 3D complex chains of microcrystals of SnO₂ of varying shape and size. The SnO₂ microcrystals have been found to be inter-connected through oriented attachment, leading to the formation of 3D complex chains of microcrystals. XRD studies showed the presence of SnO₂ and Sn in the synthesized material. Photoluminescence studies on SnO₂ microcrystal chains revealed peaks at 361, 407, 438 and 465 nm. A tentative mechanism of formation of the 3D complex chains of SnO₂ microcrystals is proposed. These SnO₂ microcrystal chains have potential applications as building blocks in novel functional devices.

Keywords

SnO₂, microcrystals, oriented attachment, microchains.