Compositional analysis and optical properties of Co doped TiO2 thin films fabricated by spray pyrolysis method for dielectric and p hotocatalytic applications

Henry Barasa Wafula, Robinson Juma Musembi, Albert Owino Juma, Patrick Tonui, Justus Simiyu, Thomas Sakwa, Deo Prakash, K. D. Verma

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Cobalt doped TiO2 thin films (CTF) deposited by spray pyrolysis has been studied. The compositional analysis has been done using RBS method, while optical spectroscopy has been done by measuring the transmittance and reflectance of the films. The CTF thin films were prepared by doping TiO2 at different concentration levels of Co which was varied between 0 and 4.51 at.%. The optical transmittance of the thin film has been found to be about 80% in the visible and near infra red regions. The calculated optical band gap has been observed to shift by about 0.22 eV, this shows a high potential for application as a dielectric and a Photocatalyst material.

Original languageEnglish
Pages (from-to)212-217
Number of pages6
JournalOptik
Volume128
DOIs
Publication statusPublished - Jan 1 2017

Fingerprint

Spray pyrolysis
pyrolysis
sprayers
Optical properties
optical properties
Thin films
transmittance
thin films
Optical band gaps
Opacity
Photocatalysts
Cobalt
cobalt
Doping (additives)
optics
Infrared radiation
reflectance
shift
spectroscopy

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Wafula, Henry Barasa ; Musembi, Robinson Juma ; Juma, Albert Owino ; Tonui, Patrick ; Simiyu, Justus ; Sakwa, Thomas ; Prakash, Deo ; Verma, K. D. / Compositional analysis and optical properties of Co doped TiO2 thin films fabricated by spray pyrolysis method for dielectric and p hotocatalytic applications. In: Optik. 2017 ; Vol. 128. pp. 212-217.
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Compositional analysis and optical properties of Co doped TiO2 thin films fabricated by spray pyrolysis method for dielectric and p hotocatalytic applications. / Wafula, Henry Barasa; Musembi, Robinson Juma; Juma, Albert Owino; Tonui, Patrick; Simiyu, Justus; Sakwa, Thomas; Prakash, Deo; Verma, K. D.

In: Optik, Vol. 128, 01.01.2017, p. 212-217.

Research output: Contribution to journalArticle

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AU - Wafula, Henry Barasa

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AU - Tonui, Patrick

AU - Simiyu, Justus

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