<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Indium tin oxide (ITO) films were deposited on glass substrates by dip-coating and thermal pyrolysis methods. Sn (IV) is often used in the spray method as a precursor salt, but in this research we have employed a new procedure that uses Sn (II) and In(NO3)3 for preparation of transparent conductive thin films. Then, colloidal Ag was deposited on the ITO layers in order to compare the two synthesis methods, and the structural and electrical properties of the resultant films were investigated by FESEM, XRD, and four-terminal resistometry. The obtained films are polycrystalline with a preferred orientation of (200). The XRD patterns of the films indicate that in both films, the Sn phase is crystallized separately from In2O3. The presence of a Sn peak and the overall low intensity of XRD peaks suggest relative crystallization of ITO structure. For this reason, Ag films were deposited by dip coating method using a colloidal sol. By analyzing the XRD patterns of Ag-ITO films after eliminating the Sn peak, the increased intensity of the peaks confirmed the relatively good crystallization of the ITO films. The results show that the films with a sheet resistance as low as 2 × 10−2 Ω·cm, which is beneficial for solar cells, were achieved.</p></abstract>

Indium tin oxide (ITO) films were deposited on glass substrates by dip-coating and thermal pyrolysis methods. Sn (IV) is often used in the spray method as a precursor salt, but in this research we have employed a new procedure that uses Sn (II) and In(NO3)3 for preparation of transparent conductive thin films. Then, colloidal Ag was deposited on the ITO layers in order to compare the two synthesis methods, and the structural and electrical properties of the resultant films were investigated by FESEM, XRD, and four-terminal resistometry. The obtained films are polycrystalline with a preferred orientation of (200). The XRD patterns of the films indicate that in both films, the Sn phase is crystallized separately from In2O3. The presence of a Sn peak and the overall low intensity of XRD peaks suggest relative crystallization of ITO structure. For this reason, Ag films were deposited by dip coating method using a colloidal sol. By analyzing the XRD patterns of Ag-ITO films after eliminating the Sn peak, the increased intensity of the peaks confirmed the relatively good crystallization of the ITO films. The results show that the films with a sheet resistance as low as 2 × 10−2 Ω·cm, which is beneficial for solar cells, were achieved.

A comparative study of dip coating and spray pyrolysis methods for synthesizing ITO nanolayers by using Ag colloidal sol

Department of Physics, Tarbiat Modares University, Tehran, P.O. Box 14115-175, Islamic Republic of Iran

Department of Chemistry, Faculty of Science, K.N. Toosi University of Technology, P.O.Box 16315-1618, Tehran, 15418, Islamic Republic of Iran

Department of Physics, Islamic Azad University, North Tehran Branch, Tehran, Islamic Republic of Iran

Institute of Microengineering and Nanoelectronics (IMEN), Level 4, Research Complex, University Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Indium tin oxide (ITO) films were deposited on glass substrates by dip-coating and thermal pyrolysis methods. Sn (IV) is often used in the spray method as a...

A comparative study of dip coating and spray pyrolysis methods for synthesizing ITO nanolayers by using Ag colloidal sol

Publié en ligne: 26 mars 2014

Pages: 102 - 106

DOI: https://doi.org/10.2478/s13536-013-0165-x

Mots clés
dip-coating, spray pyrolysis, crystallization, Ag colloid

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A comparative study of dip coating and spray pyrolysis methods for synthesizing ITO nanolayers by using Ag colloidal sol

Publié en ligne: 26 mars 2014

Pages: 102 - 106

DOI: https://doi.org/10.2478/s13536-013-0165-x

Mots clésdip-coating, spray pyrolysis, crystallization, Ag colloid

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
dip-coating, spray pyrolysis, crystallization, Ag colloid