Assessing the linear and planer micro-structural defects in SnO2 Nanoparticles through high resolution transmission electron microscopy (HRTEM)

¹ Functional Nanomaterials Research Laboratory, Department of Applied Physics, Indian Institute of Technology (ISM), Dhanbad-826004, India

²Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad-826004, India

Adv. Mater. Lett., 2017, 8 (9), pp 927-931

DOI: 10.5185/amlett.2017.1741

Publication Date (Web): Jun 04, 2017

Copyright © IAAM-VBRI Press

Abstract

This letter assesses the origin of linear and planer micro-structural defects in SnO₂ nanoparticles through high resolution transmission electron microscopy (HRTEM). For the purpose, SnO₂ nanoparticles of size 5-15 nm are synthesized by chemical co-precipitation followed by calcinations. In the low temperature (200°C and 400°C) calcinations range no significant evidence of micro-structural defect are observed. Whereas, SnO₂ nanoparticles calcined at 600°C shows better crystallinity with multiple 1-D linear defects along with 2-D planer defects. Contribution of size and strain effect causing such circumstances is illustrated in detail. Influence of these micro-structural defects on the luminescence properties of SnO₂ nanoparticles is also elaborated in detail.

Keywords

SnO₂ nanoparticles, defects, strain, high resolution transmission electron microscopy, photoluminescenceSnO₂ nanoparticles, defects, strain, high resolution transmission electron microscopy, photoluminescence