Abstract

This paper describes the preparation and characterization of optically-transparent thin films of fluoride-doped tin oxide (FTO) nanoparticles, nanotubes and nanorods grown using purpose-built, novel and advanced version of spray pyrolysis technique, known as Rotational, Pulsed and Atomized Spray Pyrolysis. Uniform and crack-free FTO1-D nanostructured thin films over 50 mm × 50 mm soda lime glass substrate have been routinely achieved. This technique allows a perfect control of morphology of nanostructures of FTO layer simply by adjusting the spray conditions. Formed 1-D FTO nanostructures on the glass substrate show an excellent optical transparency in the visible light range. XRD (x-ray diffraction) and SEM (scanning electron microscope) data show excellent correlations.

Highlights

  • Thin films have diverse applications in many technologies

  • We have chosen to synthesize and characterize various nanostructures of fluorine doped tin oxide (FTO) and we found that this improved version of Spray Pyrolysis Deposition (SPD) which we call Rotational, Pulsed and Atomized Spray Pyrolysis (RPASP) can be utilized to fabricate FTO nanoparticle (NP), nanotube (NT) and nanorod (NR) structures on normal glass surfaces by changing amount of the precursor solution

  • The results show that the nanostructured thin films were observed to be cassiterite type with the tetragonal rutile structure

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Summary

Introduction

Thin films have diverse applications in many technologies. Optically-transparent (OT) and electrically-conductive (EC) thin films have the further advantages typical with such properties for versatile applications in opto-electronic (OE) device fabrications [1]. We have chosen to synthesize and characterize various nanostructures of FTO and we found that this improved version of SPD which we call Rotational, Pulsed and Atomized Spray Pyrolysis (RPASP) can be utilized to fabricate FTO nanoparticle (NP), nanotube (NT) and nanorod (NR) structures on normal glass surfaces by changing amount of the precursor solution. Such diverse nanostructures may find innumerable applications in many electronic and opto-electronic devices

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