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<strong>Influence of Cu concentration on the structural, morphological, optical and catalytic properties of TiO2 thin films</strong>

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Title Statement <strong>Influence of Cu concentration on the structural, morphological, optical and catalytic properties of TiO2 thin films</strong>
 
Added Entry - Uncontrolled Name Rajendran, Vidhya ; Mrs. R. Vidhya Assistant Professor in physics V.V.V College for women Virudhunagar
Gandhimathi, R ; Department of Physics, AMET University, Kanathur, Chennai 603 112, India
Sankareswari, M ; Department of Physics, V V V College for women, Virudhunager 626 001, India
Neyvasagam, K ; Department of Physics, The Madura College, Madurai 625 011, India
 
Uncontrolled Index Term Thin film, synthesis and characterization, photocatalytic activity
Cu-TiO2 thin films; Photocatalysis; Sol-gel method; XRD; AFM
 
Summary, etc. Pristine titanium oxide (TiO<sub>2</sub>) and Cu doped TiO<sub>2</sub> thin 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 TiO<sub>2</sub> lattice towards the structural, morphological and optical characteristics of prepared thin films have been investigated. Cu doping alters crystallite size and morphology of doped TiO<sub>2</sub> films marginally. Gradual increase in concentration of Cu atoms into TiO<sub>2</sub> matrix expands the absorption window of prepared films to visible region. The decrease in excitonic energy upon Cu doping promotes the charge separation in TiO<sub>2</sub> semiconductor. 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 TiO<sub>2</sub> semiconductors. The advantage of thin film catalyst over the other catalyst structures has been exhibited by the reusability nature of Cu-TiO<sub>2</sub> films. This study reveals that an ideal amount of Cu doping can increase the photocatalytic performance of TiO<sub>2</sub> thin films efficiently.
 
Publication, Distribution, Etc. Indian Journal of Pure & Applied Physics (IJPAP)
2019-07-26 11:58:26
 
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http://op.niscair.res.in/index.php/IJPAP/article/view/17966
 
Data Source Entry Indian Journal of Pure & Applied Physics (IJPAP); ##issue.vol## 57, ##issue.no## 7 (2019): Indian Journal of Pure & Applied Physics
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJPAP/article/download/17966/53982
 
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