Characterisation of titanium oxide layers using Raman …
网页2019年3月1日 · Titanium dioxide (TiO 2) phases are usually Raman active in the 100–900 cm −1 region [6], [7], [8]. The oxide can exist in three main polymorphs: anatase and rutile, which exhibit tetragonal crystal structure and belong to the space group D 4 h 19 and D 4 h 14, respectively.
UV Raman Spectroscopic Study on TiO2. I. Phase Transformation …
网页2005年12月10日 · Phase transformation of TiO 2 from anatase to rutile is studied by UV Raman spectroscopy excited by 325 and 244 nm lasers, visible Raman spectroscopy excited by 532 nm laser, X-ray diffraction (XRD), and transmission electron microscopy (TEM). UV Raman spectroscopy is found to be more sensitive to the surface region of TiO 2 than visible Raman ...
Raman Spectroscopy: A New Approach to Measure the …
网页2012年3月8日 · In this paper, we introduced a novel approach for quantitatively measuring the percentage of exposed {001} facets in anatase TiO 2 by using Raman spectroscopy. Comparing to XRD, Raman peaks originate from the vibration of molecular bonds, that is, vibrational mode E g and A 1g peaks, which are related to different crystal planes.
Raman spectra of titanium dioxide (anatase, rutile) with identified ...
网页Six representative isotope-labeled samples of titanium dioxide were synthesized: Ti16O2, Ti17O2 and Ti18O2, each in anatase and rutile forms. Their Raman scattering was analyzed at temperatures down to 5 K. Spectral assignment was supported by numerical simulation using DFT calculations.
Raman Investigation of Nanosized TiO2: Effect of Crystallite Size …
网页2012年3月27日 · We report on the enhanced Raman spectrum of 4-mercaptobenzoic acid adsorbed on TiO 2 nanoparticles. The results presented in this study highlight the major findings that the intensities of both the molecular lines and the phonon modes of TiO 2 are strongly size-dependent.
Raman spectra of (a) anatase, and (b) rutile TiO 2 - ResearchGate
网页The four typical Raman spectra of characteristic active modes of anatase TiO2 with symmetries Eg, B1g, A1g, and Eg were observed at 144, 400, 519, and 640 cm −1 and peaks B1g, Eg, and A1g for...
Phase evolution, morphological, optical and electrical properties of ...
网页2020年6月23日 · In this paper, we report anatase and rutile titanium oxide (TiO 2) nanoparticulate thin films fabricated on silica and Indium Tin Oxide (ITO) substrates using femtosecond pulsed laser deposition...
网页We report the characterization by Raman spectroscopy of rutile nanocrystals embedded in cluster-assembled TiO2 films produced by supersonic cluster beam deposition. Thermal annealing of the as-deposited films promotes the growth of rutile and anatase nanoparticles with a dimension distribution peaked around 10 nm.
Quantification of titanium dioxide (TiO2) anatase and
网页2023年9月19日 · This article presents an interlaboratory comparison (ILC) on Raman spectroscopy as a technique for relative quantification of the two most common polymorphs of titanium dioxide (TiO 2)—anatase and rutile—in binary mixtures.
Deep-learning framework for fully-automated recognition of TiO2 ...
网页2022年12月19日 · In this work, we propose a powerful deep-learning framework to accurately identify compounds from their Raman spectra. Using the proposed model, we achieve a Top-1 accuracy of 99.12% and a Top-5...