Influence of annealing temperature on the properties of In2S3:Sn films deposited by spray pyrolysis
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Nanoparticles and DispersionsÁrea de conocimiento
Ciencia de los Materiales e Ingeniería MetalúrgicaPatrocinadores
This work was supported by the funding of different organizations: MINECO, Spain (project MAT2012-36754- C02-01); and Xunta de Galicia, Spain (Grupos Ref. Comp. GRC2013- 044, FEDER Funds)Fecha de publicación
2015-08Editorial
SpringerCita bibliográfica
Kraini, M., Bouguila, N., El Ghoul, J. et al. Influence of annealing temperature on the properties of In2S3:Sn films deposited by spray pyrolysis. J Mater Sci: Mater Electron 26, 5774–5782 (2015). https://doi.org/10.1007/s10854-015-3136-7Revisión por pares
siPalabras clave
Spray PyrolysisUrbach Energy
Spray Pyrolysis Technique
In2S3 Thin Film
Urbach Tail
Resumen
Tin-doped In2S3 films were grown by the chemical spray pyrolysis method using compressed air as a carrier gas. The films were annealed for 2 h at different temperatures (300, 400 and 500 °C) under nitrogen atmosphere. X-ray diffraction data show that In2S3:Sn films are polycrystalline with a cubic phase. The film grain size increases from 26 to 37 nm. The residual microstrain and dislocation network reach the values 3.08 × 10−3 and 0.73 × 1011 lines cm−2, respectively, at the annealing temperature of 500 °C. Transmittance decreases with increasing temperature. It varies in the range of 65–85 % in visible and infrared regions. The optical band gap is found to vary in the range 2.4–2.85 eV for direct transitions. The best surface state is obtained at 400 °C. The RMS roughness was estimated to be 39.4–19.8 nm. Electrical measurements at room temperature show that the sheet resistance decreases down to 130 Ω at 500 °C. The conductance and capacitance characterization at ambient temperature ...
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