Skip to main content Accessibility help

Annealing Temperature, Time and Thickness Dependencies in (TCO) SnO2 Thin Films Grown by Spray Pyrolysis Technique

  • Alfredo Campos (a1), Amanda Watson (a1), Ildemán Abrego (a1) and E. Ching-Prado (a1)

Tin oxide thin films were prepared by spray pyrolysis method using SnCl2.2H2O as starting precursor and deposited on glass substrate. Three groups of samples with different preparation conditions (temperature, time and thickness) were synthetized. The samples were characterized using Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD), UV-Visible Spectroscopy and Van der Pauw four-point electrical measurements. The grain size in the samples changes from 80 to 500 nm. Optical and electrical parameters were measured or calculated, such as: band gap, refractive index, sheet resistance, transmittance spectrum and figure of merit. Film thicknesses were obtained from fringes features in the transmittance spectra with a variation from 76 to 761 nm. A mechanism of transformation from tin dichloride to tin oxide is proposed and discussed; additionally the visual yellow color of some samples, related with a low transparency, is associated to the amount of abhurite or tin hydroxide complex coexisting with tin oxide. The figure of merit showed that 500 ºC, 42 sprays and 1 hour of annealing time were the best conditions in the preparation of SnO2 with TCO properties.

Corresponding author
*Corresponding author E-mail address:
Hide All
1. Xsiaocheng, F., Yian, Y., Linfeng, H, Hui, L. and See, L., Advanced Functional Materials, 22(8) 16131622, 2012.
2. Elangovan, E. and Ramamurthi, K., Journal of Optoelectronics and Advanced Materials, 5(1), 4554, 2003.
3. Ray, S., Gupta, P. and Singh, G., Journal of Ovonic Research, 6(1), 2334, 2010.
4. García, H. and Martínez, A., Recent Advances in Circuits, Systems, Signal and Telecommunications, 144146, 2010.
5. Amanullah, F., Mobarak, M., Dhafiri, A. and Shibani, K., Materials Chemistry and Physics, 59, 247253, 1999.
6. Fernández, R., PhD. Thesis, University of Habana, 2005.
7. Cediel, G., Rojas, F., Infante, H. and Gordillo, G., Colombian Magazine of Physics, 34(1), 4854, 2002.
8. Tricoli, A., Righettoni, M. and Teleki, A., Semiconductor Sensor, 76327659, 2010.
9. Huiyong, L., Avrutin, N., Izymskaka, Ü., Özgür, Ü. and Morkoç, H., Superlattices and Microestructure, 48, 458484, 2010.
10. Ravichandran, K., Murugananthem, G., Sakthivel, B. and Philominathan, P., Journal of Ovonic Research, 5(3), 6369, 2009.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *



Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed