Optical And Electrical Properties Of Tin Oxide-Based Thin Films Prepared By Streaming Process For Electrodeless Electrochemical Deposition

Abstract

Transparent conducting thin-films of SnO2: F were grown on preheated glass, Al2O3 coated glass, and quartz substrates by Streaming Process for Electrodeless Electrochemical Deposition (SPEED). Stannic chloride (SnCl4) and ammonium fluoride (NH4F) dissolved in a mixture of deionized water and organic solvents were used as precursors. The preheated substrate temperature was varied between 440 and 500 °C. High quality SnO2:F films were grown at all the substrate temperatures studied. The resulting typical film thickness was 250 nm. X-ray diffraction shows that the grown films are polycrystalline SnO2 with a tetragonal crystal structure. The average optical transmission of the films was around 93% throughout the wavelength range 400 to 1000 nm. The lowest electrical resistivity achieved was 6×10-4 Ω-cm. The Hall measurements showed that the film is an n-rype semiconductor, with carrier mobility of 8.3 cm2/V-s, and carrier concentration of 1 × 1021 cm-3. The direct bandgap was determined to be 4.0 eV from the transmittance spectrum.

Publication Date

1-1-2015

Publication Title

MRS Advances

Volume

1805

Number of Pages

37-42

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1557/opl.2015.571

Socpus ID

85016627212 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85016627212

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