Microstructure and opto-electrical properties of SnO_{2:In2O3 alloys thin films prepared by ultrasonic spray}

Autor:	Mohammed Salah Aida, A. Hafdallah, Jamal Bougdira, F. Ynineb, N. Attaf, Hervé Rinnert
Rok vydání:	2013
Předmět:	Materials science Scanning electron microscope Mechanical Engineering Analytical chemistry chemistry.chemical_element Conductivity Condensed Matter Physics Microstructure chemistry.chemical_compound chemistry Figure of merit General Materials Science Ultrasonic sensor Methanol Thin film Indium
Zdroj:	International Journal of Nanoparticles. 6:252
ISSN:	1753-2515 1753-2507
DOI:	10.1504/ijnp.2013.055001
Popis:	In this work, we study the effect of indium weight ratio in solution: R = [In/Sn] on the properties of SnO2:In2O3 thin films prepared by ultrasonic spray method at fixed temperature of 300°C. The used precursors are tin chloride dehydrate and indium trichloride dissolved in methanol. To prepare hybrid SnO2:In2O3 thin films with different concentrations, the ratio R is varied in the range of 10–95 wt%. The resulting films were characterised by X-ray diffraction, scanning electron microscopy analysis, UV-visible spectrophotometer and conductivity measurement. The XRD results indicate segregation between SnO2 and In2O3 phases in all films. The optical transmittance is in the range of [75–85]%. The conductivity values of pure oxides are very low [~10–3 (Ω.cm)–1] and it is increased with R ratio until a maximum value of 1.2 × 102 (Ω.cm)–1 obtained at R = 95 wt%. Consequently, the higher figure of merit (Fm = σ.T.d) is obtained at this later ratio.
Databáze:	OpenAIRE
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