Influence of Cu concentration on the structural, morphological, optical and catalytic properties of TiO2thin films
By: Vidhya, R
.
Contributor(s): Gandhimathi, R.
Publisher: New Delhi CSIR 2019Edition: Vol.57(7), July.Description: 475-482p.Subject(s): Humanities and Applied ScienceOnline resources: Click here
In:
Indian journal of pure & applied physics (IJPAP)Summary: Pristine titanium oxide (TiO2)and Cu doped TiO2thin films of 2.0 μm thicknesses have been deposited on glass substrates by sol-gel dip coating technique. The deposited films are even and more adherent to the substrate. The consequences of incorporation of Cu ions of different concentration in TiO2lattice towards the structural, morphological and optical characteristics of prepared thin films have been investigated.Cu doping alters crystallite size and morphology of doped TiO2films marginally.Gradual increase in concentration of Cu atoms into TiO2matrix expands the absorption window of prepared films to visible region. The decrease in excitonic energy upon Cu doping promotes the charge separation in TiO2semiconductor. Depending upon Cu concentration,exciton life time is extended fairly which leads to improved electron-hole separation and enhanced oxidation-reduction reactions at the surface of TiO2semiconductors.The advantage of thin film catalyst over the other catalyst structures has been exhibited by the reusability nature of Cu-TiO2films.This study reveals that an ideal amount of Cu doping can increase the photocatalytic performance of TiO2thin films efficiently.
| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
|---|---|---|---|---|---|---|
Articles Abstract Database
|
School of Engineering & Technology Archieval Section | Not for loan | 2020716 |
Pristine titanium oxide (TiO2)and Cu doped TiO2thin films of 2.0 μm thicknesses have been deposited on glass substrates by sol-gel dip coating technique. The deposited films are even and more adherent to the substrate. The consequences of incorporation of Cu ions of different concentration in TiO2lattice towards the structural, morphological and optical characteristics of prepared thin films have been investigated.Cu doping alters crystallite size and morphology of doped TiO2films marginally.Gradual increase in concentration of Cu atoms into TiO2matrix expands the absorption window of prepared films to visible region. The decrease in excitonic energy upon Cu doping promotes the charge separation in TiO2semiconductor. Depending upon Cu concentration,exciton life time is extended fairly which leads to improved electron-hole separation and enhanced oxidation-reduction reactions at the surface of TiO2semiconductors.The advantage of thin film catalyst over the other catalyst structures has been exhibited by the reusability nature of Cu-TiO2films.This study reveals that an ideal amount of Cu doping can increase the photocatalytic performance of TiO2thin films efficiently.
Click on an image to view it in the image viewer
There are no comments for this item.