000			01704nam a22001697a 4500
999			_c21841 _d21841
005			20221006174048.0
008			221006b ||||| |||| 00| 0 eng d
020			_ahbk
082			_a537.6 _bT3401
100			_aKanwal Zia, _bM. Phil Physics, _c2015-2017 _dSupervised by Dr. Muhammad Saeed Akhtar
245			_aThe effect of annealing atmosphere on structural and optical properties of Zn doped SnO2 Nanoparticles _c/ Kanwal Zia
260			_aLahore : _bDivision of Science & Technology, University of Education, _c2018
300			_aviii, 42 p. _eCD
520			_aThis study was conducted to investigate the effect of annealing temperature on undoped and zinc doped tin oxide nanoparticles synthesized by simple and cos effective chemical method i.e. Sol-Gel technique. The XRD analysis confirmed the synthesis of polycrystalline tin oxide nanoparticles with cubic structure. The crystallite size of undoped nanoparticles was found to be 2.6 nm, however the crystallite size for zinc doped tin oxide nanoparticles annealed at 400 ̊C was found to be 5.2 nm. The SEM analysis confirmed the growth of uniformly distributed almost spherical nanoparticles for un-doped and zinc doped samples with an average particle size of 75 and 105 nm, respectively. The optical properties revealed that prepared nanoparticles showed high transmittance in the visible region. The band gap value for un- doped and zinc doped tin oxide nanoparticles annealed at 400 ̊C is 3.75 and 3.63 eV, respectively. The synthesized nanoparticles with tuned band gap might have potential applications in sensors and opto-electronic devices.
650			_aPhysics--Atmoshphere--Optical Properties--Nanoparticles
942			_cTH