title: Studies on effect of temperature on synthesis of hierarchical TiO2 nanostructures by surfactant free single step hydrothermal route and its photoelectrochemical characterizations.
abstract: Exotic hierarchical rutile TiO2 nanostructures are synthesized by surfactant free single step hydrothermal route. The effect of reaction temperature, ranging from 140°C to 200°C on the properties of the synthesized rutile-TiO2 is investigated. The synthesized rutile-TiO2 nanostructures are characterized using X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy, UV-vis spectroscopy and scanning electron microscopy techniques. The deposited TiO2 samples are found to be photoelectrochemically active and the best photoelectrochemical performance (0.95±0.05%) is obtained for the sample deposited at 180°C. A possible temperature dependent growth mechanism resulting in photochemically active TiO2 nanostructure thin films is proposed.
authors.affiliation: Thin Film Materials Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, M.S., India.
authors.forename: V V
authors.initials: VV
authors.lastname: Burungale
authors.affiliation: Thin Film Materials Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, M.S., India.
authors.forename: V V
authors.initials: VV
authors.lastname: Satale
authors.affiliation: Thin Film Materials Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, M.S., India.
authors.forename: A J
authors.initials: AJ
authors.lastname: More
authors.affiliation: School of Nanoscience and Technology, Shivaji University, Kolhapur 416004, M.S., India.
authors.forename: K K K
authors.initials: KKK
authors.lastname: Sharma
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University, Gwangju 500757, South Korea.
authors.forename: A S
authors.initials: AS
authors.lastname: Kamble
authors.affiliation: Department of Materials Science and Engineering, Chonnam National University, Gwangju 500757, South Korea.
authors.forename: J H
authors.initials: JH
authors.lastname: Kim
authors.affiliation: Thin Film Materials Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, M.S., India. Electronic address: patilps_2000@yahoo.com.
authors.forename: P S
authors.initials: PS
authors.lastname: Patil
keywords: Hydrothermal; Reaction temperature; Rutile titanium dioxide; Surfactant free