Investigations on RuO2–In2O3 nanostructured porous composite thin films for benzene detection

Gavaskar, Dasari Sunil; Nagaraju, P.; Reddy, M.V. Ramana

doi:10.1016/j.micromeso.2022.112247

Cited by 6 publications

(2 citation statements)

References 67 publications

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“…The defect density variation with Nb codoping concentration is shown in Figure 7b, where NFTO4 shows the highest defect density in the order of 10 21 (per cm 3 ), a similar range of defect density was reported significantly in the literature. [54,[82][83][84][85] The defect density increases up to Nb 4 wt% (NFTO4 film), and it decreases for further increase in concentration, leading to a quenching effect. Moreover, the increasing free carrier absorption leads to quenching in luminescence properties.…”

Section: Optical Propertiesmentioning

confidence: 99%

Anionic Fluorine and Cationic Niobium Codoped Tin Oxide Thin Films as Transparent Conducting Electrodes for Optoelectronic Applications

Muniramaiah

Reddy

Santhosh

et al. 2023

Physica Status Solidi (a)

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Exploration of alternatives for supplementing indium tin oxide electrode is currently trending due to scarcity of indium, leading to a steep increase in the cost of related optoelectronic components. Codoping of niobium (Nb) and fluorine (F) into SnO2 lattice as cationic and anionic dopants, respectively, is explored by spray deposition technique. A fixed 10 wt% F and varying Nb concentration from 0 to 5 wt% is incorporated into the SnO2 lattice. X‐ray diffraction reveals substitution of Nb and F into the SnO2 lattice without altering the structure. Optical transmittance is found to increase with Nb content up to 4% of Nb (77.59%), and it decreases thereafter. Scanning electron microscope and optical profiler imply a relatively smooth surface with sharp‐tipped particles which vary with Nb concentration. Sheet resistance decreases up to 3 wt% of Nb doping and increases thereafter. Contact angle measurement indicates that upon doping with Nb, the films turn hydrophilic. Among the deposited films, 4 wt% of Nb‐doped film shows the highest figure of merit of 5.01 × 10−3 Ω−1. The surface work function of the 4 wt% Nb‐doped SnO2 film is 4,687.85 meV. The optimal films are tested as electrodes in dye‐sensitized solar cells and are discussed in detail.

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Section: Optical Propertiesmentioning

confidence: 99%

Anionic Fluorine and Cationic Niobium Codoped Tin Oxide Thin Films as Transparent Conducting Electrodes for Optoelectronic Applications

Muniramaiah

Reddy

Santhosh

et al. 2023

Physica Status Solidi (a)

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“…Ruthenium dioxide (RuO 2 ) is a well-known metal oxide with a wide range of industrial applications, such as a catalyst, electrode material, and component in resistive films. − Due to its excellent electrical conductivity, relatively high melting point (1200 °C), high chemical stability, and low environmental impact, − RuO 2 has emerged as a promising material for various electronic and energy-related applications. Therefore, there has been growing interest in developing efficient and cost-effective methods for synthesizing RuO 2 -based nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

Molten Salt-Derived RuO₂ Nanocrystals and Nanowires: Unveiling Correlations of Morphology, Microstructure, and Electrocatalytic Performance

Zhang,

Qian,

Wei

et al. 2023

Inorg. Chem.

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Ruthenium oxide (RuO 2 ), due to its comparable binding energy with *H and cost-effectiveness against Pt, has emerged as a pivotal electrocatalyst for oxygen evolution reaction (OER). In the present study, RuO 2 nanocrystals (NCs) and nanowires (NWs) were obtained by a molten salt process and the morphology, crystal structure, and local bonding features were examined by using electron microscopy and X-ray absorption spectroscopy. From the electrochemical measurement, both RuO 2 NCs and NWs exhibit favorable stability and activity toward oxygen evolution reaction in an alkali medium, althought NCs exhibit higher activity, which is likely attributed to the larger surface area and the high local structural disorder. The theoretical calculation reveals that RuO 2 NWs with a primary (110) orientation show a higher overpotential due to its d-band center's proximity to the Fermi level versus (101). The present work suggests that the molten salt process could be an efficient method for producing metal oxide catalysts with tailorable geometry and performances.

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Enhanced ethanol gas detection using TiO2 nanorods dispersed in cholesteric liquid crystal: Synthesis, characterization, and sensing performance

Pathinti,

Dasari,

Gollapelli

et al. 2024

Journal of Alloys and Compounds

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Investigations on RuO2–In2O3 nanostructured porous composite thin films for benzene detection

Cited by 6 publications

References 67 publications

Anionic Fluorine and Cationic Niobium Codoped Tin Oxide Thin Films as Transparent Conducting Electrodes for Optoelectronic Applications

Anionic Fluorine and Cationic Niobium Codoped Tin Oxide Thin Films as Transparent Conducting Electrodes for Optoelectronic Applications

Molten Salt-Derived RuO₂ Nanocrystals and Nanowires: Unveiling Correlations of Morphology, Microstructure, and Electrocatalytic Performance

Enhanced ethanol gas detection using TiO2 nanorods dispersed in cholesteric liquid crystal: Synthesis, characterization, and sensing performance

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Investigations on RuO2–In2O3 nanostructured porous composite thin films for benzene detection

Cited by 6 publications

References 67 publications

Anionic Fluorine and Cationic Niobium Codoped Tin Oxide Thin Films as Transparent Conducting Electrodes for Optoelectronic Applications

Anionic Fluorine and Cationic Niobium Codoped Tin Oxide Thin Films as Transparent Conducting Electrodes for Optoelectronic Applications

Molten Salt-Derived RuO2 Nanocrystals and Nanowires: Unveiling Correlations of Morphology, Microstructure, and Electrocatalytic Performance

Enhanced ethanol gas detection using TiO2 nanorods dispersed in cholesteric liquid crystal: Synthesis, characterization, and sensing performance

Contact Info

Product

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Molten Salt-Derived RuO₂ Nanocrystals and Nanowires: Unveiling Correlations of Morphology, Microstructure, and Electrocatalytic Performance