Spectroscopic, structural and morphological properties of spin coated Zn:TiO2 thin films

Prathvi; S. Asha Bhandarkar; Akshayakumar Kompa; Dhananjaya Kekuda; Murari M. S; Maksim P. Telenkov; Nagaraja K. K; Mohan Rao K

doi:10.1016/j.surfin.2020.100910

Spectroscopic, structural and morphological properties of spin coated Zn:TiO₂ thin films

Prathvi
, S. Asha Bhandarkar
, Akshayakumar Kompa
, Dhananjaya Kekuda
, Murari M. S
, Maksim P. Telenkov
, Nagaraja K. K
, Mohan Rao K^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Herein we report on the spin coated thin films of Zn-doped TiO₂ on glass substrates with various Zn concentrations (2 ‒8 at %). The structural, chemical, optical and morphological properties were investigated using X-ray diffraction (XRD), Raman spectroscopy, photoluminescence (PL), UV-Visible spectroscopy, X-ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscopy (FESEM). Studies by XRD and Raman confirmed the existence of the anatase phase. With increasing Zn²⁺ concentration, the crystallite size was found to decrease. FESEM studies reveal the homogenous distribution of grains in the films. UV-Visible spectra showed higher light absorption with doping, and the bandgap decreased from 3.47 eV to 3.36 eV. The Urbach energy was found to increase on doping. XPS spectra revealed the successful incorporation of Zn²⁺ ion into TiO₂ lattice.

Original language	English
Article number	100910
Journal	Surfaces and Interfaces
Volume	23
DOIs	https://doi.org/10.1016/j.surfin.2020.100910
Publication status	Published - 04-2021

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
General Physics and Astronomy
Surfaces and Interfaces
Surfaces, Coatings and Films

Access to Document

10.1016/j.surfin.2020.100910

Cite this

@article{76ea85ba158d47c39c9119a4934ece0d,

title = "Spectroscopic, structural and morphological properties of spin coated Zn:TiO2 thin films",

abstract = "Herein we report on the spin coated thin films of Zn-doped TiO2 on glass substrates with various Zn concentrations (2 ‒8 at \%). The structural, chemical, optical and morphological properties were investigated using X-ray diffraction (XRD), Raman spectroscopy, photoluminescence (PL), UV-Visible spectroscopy, X-ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscopy (FESEM). Studies by XRD and Raman confirmed the existence of the anatase phase. With increasing Zn2+ concentration, the crystallite size was found to decrease. FESEM studies reveal the homogenous distribution of grains in the films. UV-Visible spectra showed higher light absorption with doping, and the bandgap decreased from 3.47 eV to 3.36 eV. The Urbach energy was found to increase on doping. XPS spectra revealed the successful incorporation of Zn2+ ion into TiO2 lattice.",

author = "Prathvi and Bhandarkar, \{S. Asha\} and Akshayakumar Kompa and Dhananjaya Kekuda and S, \{Murari M.\} and Telenkov, \{Maksim P.\} and K, \{Nagaraja K.\} and K, \{Mohan Rao\}",

note = "Funding Information: All persons who have made substantial contributions to the work reported in the manuscript (e.g. technical help, writing and editing assistance, general support), but who do not meet the criteria for authorship, are named in the Acknowledgements Publisher Copyright: {\textcopyright} 2020 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

year = "2021",

month = apr,

doi = "10.1016/j.surfin.2020.100910",

language = "English",

volume = "23",

journal = "Surfaces and Interfaces",

issn = "2468-0230",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Spectroscopic, structural and morphological properties of spin coated Zn:TiO2 thin films

AU - Prathvi,

AU - Bhandarkar, S. Asha

AU - Kompa, Akshayakumar

AU - Kekuda, Dhananjaya

AU - S, Murari M.

AU - Telenkov, Maksim P.

AU - K, Nagaraja K.

AU - K, Mohan Rao

N1 - Funding Information: All persons who have made substantial contributions to the work reported in the manuscript (e.g. technical help, writing and editing assistance, general support), but who do not meet the criteria for authorship, are named in the Acknowledgements Publisher Copyright: © 2020 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/4

Y1 - 2021/4

N2 - Herein we report on the spin coated thin films of Zn-doped TiO2 on glass substrates with various Zn concentrations (2 ‒8 at %). The structural, chemical, optical and morphological properties were investigated using X-ray diffraction (XRD), Raman spectroscopy, photoluminescence (PL), UV-Visible spectroscopy, X-ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscopy (FESEM). Studies by XRD and Raman confirmed the existence of the anatase phase. With increasing Zn2+ concentration, the crystallite size was found to decrease. FESEM studies reveal the homogenous distribution of grains in the films. UV-Visible spectra showed higher light absorption with doping, and the bandgap decreased from 3.47 eV to 3.36 eV. The Urbach energy was found to increase on doping. XPS spectra revealed the successful incorporation of Zn2+ ion into TiO2 lattice.

AB - Herein we report on the spin coated thin films of Zn-doped TiO2 on glass substrates with various Zn concentrations (2 ‒8 at %). The structural, chemical, optical and morphological properties were investigated using X-ray diffraction (XRD), Raman spectroscopy, photoluminescence (PL), UV-Visible spectroscopy, X-ray Photoelectron Spectroscopy (XPS) and Field Emission Scanning Electron Microscopy (FESEM). Studies by XRD and Raman confirmed the existence of the anatase phase. With increasing Zn2+ concentration, the crystallite size was found to decrease. FESEM studies reveal the homogenous distribution of grains in the films. UV-Visible spectra showed higher light absorption with doping, and the bandgap decreased from 3.47 eV to 3.36 eV. The Urbach energy was found to increase on doping. XPS spectra revealed the successful incorporation of Zn2+ ion into TiO2 lattice.

UR - https://www.scopus.com/pages/publications/85099197753

UR - https://www.scopus.com/pages/publications/85099197753#tab=citedBy

U2 - 10.1016/j.surfin.2020.100910

DO - 10.1016/j.surfin.2020.100910

M3 - Article

AN - SCOPUS:85099197753

SN - 2468-0230

VL - 23

JO - Surfaces and Interfaces

JF - Surfaces and Interfaces

M1 - 100910

ER -

Spectroscopic, structural and morphological properties of spin coated Zn:TiO₂ thin films

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this