Abstract Proceedings of ICIRESM – 2020
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ANNEALING EFFECT ON STRUCTURAL AND OPTICAL PROPERTIES OF SNO2 THIN FILMS
Thin solid films of SnO2 were deposited by chemical vapor deposition (CVD) method on glass substrate at 450C and 2.5L/min.air flow rate. Deposited films were annealed at different temperature (200,300,400,500) C in air for 60 minutes. Structural properties have been studied for annealed and unannealed films. It was found that the films have polycrystalline structure with grain diameter(190-230)Adepend on annealing temperature. And the crystal structure is tetragonal with lattice constants (a=b=4.782, c=3.233)AOptical properties also studied for annealed and unannealed films using UV-visible spectroscopy. The transmission spectra showed higher transparency over the visible wave length region with maximum value (85-95)% depend on annealing temperature. Absorption edge energy is increased by annealing temperature from (3.93 to 4.1) eV while Optical energy gap is not affected by annealing and it is found to be (4.17) eV.
Thin solid films, Unannealed films.
13/11/2020
363
20363
IMPORTANT DAYS
Paper Submission Last Date
October 20th, 2024
Notification of Acceptance
November 7th, 2024
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November 1st, 2024
Date of Conference
November 15th, 2024
Publication
January 30th, 2025