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
Publication Date (Web): Jun 04, 2017
Copyright © IAAM-VBRI Press
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.
SnO2 nanoparticles, defects, strain, high resolution transmission electron microscopy, photoluminescenceSnO2 nanoparticles, defects, strain, high resolution transmission electron microscopy, photoluminescence