Structural, morphological and optical properties of Nickel-doped SnO2 nanostructure materials prepared by the sol-gel method under different heat treatments
| Autor: | Sara Benzitouni, Kaour Salma, Rechem Djamil, Khial Aicha |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Nanostructure Band gap Annealing (metallurgy) Doping Analytical chemistry Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Dip-coating 0104 chemical sciences Crystallite Thin film 0210 nano-technology Sol-gel |
| Zdroj: | 2016 International Semiconductor Conference (CAS). |
| DOI: | 10.1109/smicnd.2016.7783075 |
| Popis: | This work presents a detailed study of the influence of different annealing temperatures on the structural, morphological and optical properties 5 wt% Ni doped SnO 2 thin films. Ni doped SnO 2 thin films were deposited by sol gel method on glass substrates and then annealed at different temperature. Structural and morphological investigations were carried out on all samples by X-ray diffraction method and atomic force microscopy while Optical properties were obtained with UV-Visible spectrophotometer. Structural analysis showed that all films are polycrystalline with rutile phase and preferred orientation (110) which improves with increasing the annealing temperature. The grain size is calculated by the Scherrer method ranges from 3.9 nm to 9.13 nm AFM images showed that Ni doped SnO 2 thin films have a smooth surface morphology with nanostructure surface roughness in the range of 12 to 25 nm. The optical properties in the visible range showed that the deposited layers have a high transmission factor. An average transmittance of >75% was observed for all the films. The optical band gap energy vary in the range of 3.89–4.02 eV with the increase in annealing temperature. |
| Databáze: | OpenAIRE |
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