Introduction to Transition Metal Oxides and Thin Films

Ashrit, P. V.

doi:10.1016/b978-0-08-101747-0.00002-7

Cited by 8 publications

(3 citation statements)

References 81 publications

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“…2 On the other hand, transition metal oxides have excellent chemical stability, high refraction index, and high resistance and dielectric constant, which were widely used in the field of optical and electrical devices. [3][4][5][6][7][8] Zheng et al pointed out that a CrO x layer added into the organic-inorganic halide perovskite solar cells greatly improved the stability of the electron transport layer in the air and also the conversion efficiency. 9 Ternary, quaternary, and multicomponent films were prepared by adding other high-melting point materials, which have excellent performance, for example, high hardness, chemical stability, and corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

“…Transition‐metal nitrides, such as ZrN, CrN, and TiN, as refractory compounds, possess exceptional physical properties, including high hardness, high melting point, and good chemical stability, as well as corrosion resistance 2 . On the other hand, transition metal oxides have excellent chemical stability, high refraction index, and high resistance and dielectric constant, which were widely used in the field of optical and electrical devices 3–8 . Zheng et al pointed out that a CrO x layer added into the organic–inorganic halide perovskite solar cells greatly improved the stability of the electron transport layer in the air and also the conversion efficiency 9 .…”

Section: Introductionmentioning

confidence: 99%

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Composition and optical properties of chromium oxynitride films

Wang

Yuan

et al. 2022

Surface & Interface Analysis

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The films with various components were prepared by using the reaction gases N2 and O2 combined with the Cr2O3 and CrN targets. The focus of this study is at the composition, optical, and bandgap properties of the CrOxNy thin films. X‐ray diffraction, X‐ray photoelectron spectroscopy, and ultraviolet–visible–near‐infrared (UV‐vis‐NIR) spectroscopy were used to investigate the phase structure, chemical composition, and optical properties of the films, respectively. The results show that the films mainly consisted of CrO2 phases. The (O + N)/Cr atomic ratio deduced from X‐ray photoelectron spectroscopy (XPS) in the films prepared with the Cr2O3 target increased with the increase of nitrogen flow, whereas the nitrogen concentration in samples prepared with the CrN target was greatly affected by O2 gases flow. When the oxygen flow was as low as 1.0 sccm, the sample is mainly composed of oxides. The thin films prepared with the oxide target presented a good transmittance of 60%–80% in the visible range. The bandgap, as obtained using the absorption value, spanned a range of 1.3–2.6 eV. These results provide an excellent suggestion for the preparation of the chromium oxynitrides films applied in the aspect of mechanical, optical and electrical properties.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Composition and optical properties of chromium oxynitride films

Wang

Yuan

et al. 2022

Surface & Interface Analysis

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“…Transition metal oxides (TMO) have been widely used in these areas because of their unique properties such as diverse structure, electrical conductivity, optics and magnetism. Furthermore, TMOs have less electrochemical series resistance, wide range oxidation states, long cycle life for electrochemical devices and naturally high porosity [1][2][3][4][5][6]. Titanium dioxide [7], tungsten oxide [8], manganese oxide [9] and vanadium oxide [10][11][12] have been extensively studied as electrochemical devices.…”

Section: Introductionmentioning

confidence: 99%

Comparison of vanadium oxide thin films deposited from commercial and solution combustion synthesised powders

Sonmez

Yilmaz

Kalkan

et al. 2018

Surface Engineering

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In the present work, V 2 O 5 thin films were fabricated with both commercial and solution combustion synthesised V 2 O 5 resorting to a single spin coating sol-gel deposition. Structural and morphological properties of V 2 O 5 powder were investigated first, subsequently followed by a detailed investigation of the optical and electrochemical properties of thin films. The film, which was coated from as-synthetised powder onto corning substrate had a transparency of greater than 85% in the visible region for sol-gels exhibited absorption edges at ∼380 nm. The optical band-gap energy was evaluated to be 2.7 eV, while the coloration efficiency of this film was found to be 36.8 cm 2 C −1 . The film thickness range of 100-300 nm was demonstrated in 1-layer. The main properties of the afore discussed thin films provide further encouragement for application in future nanoscale (opto-) electronic devices as they are reproducible, cost-effective, and quick to fabricate.

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