Investigation of structural and optical properties of spin coated TiO2:Mn thin films

被引：20
作者：
Bhandarkar, S. Asha [1 ]
Prathvi [1 ]
Kompa, Akshayakumar [1 ]
Murari, M. S. [2 ]
Kekuda, Dhananjaya [1 ]
Mohan, Rao K. [1 ]
机构：
[1] Manipal Acad Higher Educ, Manipal Inst Technol, Dept Phys, Manipal 576104, India
[2] Mangalore Univ, DSTPURSE Program, Mangalore 574199, India
来源：
OPTICAL MATERIALS | 2021年 / 118卷
关键词：
TiO2:Mn thin films; Anatase; Bandgap; Photoluminescence; METHYLENE-BLUE; BAND-GAP; NANOPARTICLES; DEGRADATION; ANATASE;
D O I：
10.1016/j.optmat.2021.111254
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the current work, we have deposited and studied various properties of spin coated undoped and Mn doped TiO2 films annealed at 400 degrees C on glass substrate. The influence of Mn dopant concentrations on the properties of TiO2 thin film is detailed. X-ray Diffraction (XRD), Raman spectroscopy, Field Emission Scanning Electron Microscopy (FESEM), Atomic Force Microscopy (AFM), UV-Vis spectroscopy and Photoluminescence (PL) studies were carried out to determine the structural parameters, surface morphology/topography and optical properties of TiO2 films. The XRD pattern of both undoped and TiO2:Mn thin films have exhibited (101) plane as a preferential orientation confirming the presence of anatase phase and same reflected in the Raman study. AFM image analysis reveals an improvement in surface roughness with an increase in Mn concentration indicating the coalescence of smaller crystallites. FESEM image analysis also confirmed the effect of Mn on surface morphology. UV-Vis spectroscopic measurements indicated a red shift of absorption edge upon doping. Refractive index calculation confirmed the densification of the films with increase in Mn concentration. From the PL study, luminescence property of TiO2 was found to improve upon Mn doping.
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页数：8
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共 43 条
[1]   Impact of Mn-dopant concentration in observing narrowing of band-gap, urbach tail and paramagnetism in anatase TiO2 nanocrystals [J].
Akshay, V. R. ;
Arun, B. ;
Mandal, Guruprasad ;
Vasundhara, M. .
NEW JOURNAL OF CHEMISTRY, 2019, 43 (37) :14786-14799
[2]   Visible range optical absorption, Urbach energy estimation and paramagnetic response in Cr-doped TiO2 nanocrystals derived by a sol-gel method [J].
Akshay, V. R. ;
Arun, B. ;
Mandal, Guruprasad ;
Vasundhara, M. .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2019, 21 (24) :12991-13004
[3]   Structural phase analysis, band gap tuning and fluorescence properties of Co doped TiO2 nanoparticles [J].
Alamgir ;
Khan, Wasi ;
Ahmad, Shabbir ;
Hassan, M. Mehedi ;
Naqvi, A. H. .
OPTICAL MATERIALS, 2014, 38 :278-285
[4]   Influence of sprayed nanocrystalline Zn-doped TiO2 photoelectrode with the dye extracted from Hibiscus Surattensis as sensitizer in dye-sensitized solar cell [J].
Arunachalam, A. ;
Dhanapandian, S. ;
Manoharan, C. ;
Bououdina, M. ;
Ramalingam, G. ;
Rajasekaran, M. ;
Radhakrishnan, M. ;
Ibraheem, A. Mohamed .
CERAMICS INTERNATIONAL, 2016, 42 (09) :11136-11149
[5]   Effect of Sn doping on the structural, optical and electrical properties of TiO2 films prepared by spray pyrolysis [J].
Arunachalam, A. ;
Dhanapandian, S. ;
Manoharan, C. .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2016, 27 (01) :659-676
[6]   Characterization of sprayed TiO2 on ITO substrates for solar cell applications [J].
Arunachalam, A. ;
Dhanapandian, S. ;
Manoharan, C. ;
Sridhar, R. .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2015, 149 :904-912
[7]   Physical properties of Zn doped TiO2 thin films with spray pyrolysis technique and its effects in antibacterial activity [J].
Arunachalam, A. ;
Dhanapandian, S. ;
Manoharan, C. ;
Sivakumar, G. .
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2015, 138 :105-112
[8]   Epitaxial growth and nanoscale electrical properties of Ce2Ti2O7 thin films [J].
Bayart, Alexandre ;
Shao, ZhenMian ;
Ferri, Anthony ;
Roussel, Pascal ;
Desfeux, Rachel ;
Saitzek, Sebastien .
RSC ADVANCES, 2016, 6 (39) :32994-33002
[9]   Cr doping effect on the structural, optoelectrical and photocatalytic properties of RF sputtered TiO2 thin films from a powder target [J].
Ben Jemaa, I ;
Chaabouni, F. ;
Ranguis, A. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 825
[10]   Tailoring luminescence properties of TiO2 nanoparticles by Mn doping [J].
Choudhury, B. ;
Choudhury, A. .
JOURNAL OF LUMINESCENCE, 2013, 136 :339-346
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