Transparent Conductive Electrode of Fluorine Doped Tin Oxide Prepared by Inkjet Printing Technique

Abstract

Fluorine doped tin oxide (FTO) thin films have been developed as alternatives to ITO for thin film transparent electrode applications. In this works, the FTO thin films were deposited using inkjet printing technique since the technique is a promising deposition method to fabricate low-cost devices. The FTO precursor was prepared by reacting SnCl4•5H2O and NH4F at 60oC in a sealed container. The thin films were deposited on glass substrates at 40oC with variations of printing layers. The optical and electrical properties of the films were affected by the number of printed layers. It was observed the four layers film has the optimum optical transmittance and sheet resistance which were 96 %T and 16.4 Ω/□ respectively.