High quality nitrogen-doped zinc oxide thin films grown on ITO by sol–gel method

Pathak, Trilok K.; Kumar, Vinod; Purohit, L.P.

doi:10.1016/j.physe.2015.08.021

Cited by 20 publications

(6 citation statements)

References 29 publications

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“…Most N-doped ZnO studies involve films rather than colloidal nanoparticles. 173,174 There are only a handful of reports that demonstrate the ability to form nonaggregated N-doped ZnO NPs. 75,142,143,175,176 Macı ́as-Sańchez et al synthesized nitrogen-doped zinc oxide nanoparticles from zinc acetate and urea as precursors while using ammonium hydroxide as the nitrogen source.…”

Section: Doping In Metal Oxide Nanoparticlesmentioning

confidence: 99%

Visible-Light-Active Doped Metal Oxide Nanoparticles: Review of their Synthesis, Properties, and Applications

Medhi

Marquez

Lee

2020

ACS Appl. Nano Mater.

237

107

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Metal oxide semiconductors with a bandgap between 2 and 4 eV are an important class of compounds in the electronics industry and for photocatalysis. With the demand for these materials expanding rapidly, especially in the field of photocatalysis, the fabrication of nanoscale metal oxide particles, which increases the surface-to-volume ratio and thereby reduces the materials costs, is an emphasis of current research. For the purpose of photocatalysis, another important quality is the ability to absorb light efficiently. However, due to the wide bandgap of metal oxide semiconductors, the absorptions are limited to the UV region. Conveniently, a wider range of wavelengths and physical properties can be enabled by doping these metal oxide nanoparticles. Furthermore, the synthesis of doped metal oxides in nanoparticle form offers utility in an expansive array of systems, substrates, and dispersion media. However, the reliable synthesis of nanosized colloidal particles of doped metal oxides remains an ongoing challenge for materials researchers. This manuscript gives a concise overview of research conducted regarding the synthesis of visible-light-active doped metal oxide nanoparticles (NPs) and analyzes how doping impacts the optical properties, making them active in the visible to near-infrared regions. The effects of doping on applications are also summarized. Given that the most commonly doped metal oxide materials are TiO 2 and ZnO, this review highlights both anion-and cation-doped TiO 2 and ZnO nanoparticles. In addition, doped perovskite nanoparticles (e.g., BaTiO 3 and SrTiO 3 ) as well as some of the lesser studied doped metal oxide nanoparticle systems are covered. This work is intended to provide not only a broad overview of existing doped metal oxide nanoparticles but also a foundation for the development of semiconducting nanoparticle architectures for next-generation applications.

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Section: Doping In Metal Oxide Nanoparticlesmentioning

confidence: 99%

Visible-Light-Active Doped Metal Oxide Nanoparticles: Review of their Synthesis, Properties, and Applications

Medhi

Marquez

Lee

2020

ACS Appl. Nano Mater.

237

107

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“…The value of the energy band gap of ZnO thin film can be calculated from the Tauc's plot using the relation αhν = A ( hν − E g ) n where α is absorption coefficient, A is the proportionality constant, hν is the incident energy and E g is the band gap of the material. 30 Since ZnO is reported to be a direct band gap semiconductor, 31 the value of n is taken to be 1/2 and then, the eqn (2) becomes ( αhν ) = A ( hν − E g ) 1/2 …”

Section: Resultsmentioning

confidence: 99%

“…where a is absorption coefficient, A is the proportionality constant, hn is the incident energy and E g is the band gap of the material. 30 Since ZnO is reported to be a direct band gap semiconductor, 31 the value of n is taken to be 1/2 and then, the eqn (2) becomes…”

Section: Characterization Of Znomentioning

confidence: 99%

Low temperature-processed ZnO thin films for p–n junction-based visible-blind ultraviolet photodetectors

2018

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“…Template based synthesis allows for the formation of well-defined structures [45,46]. The wet chemical methods include hydrothermal synthesis [14,47], sol-gel spin-coating [48][49][50][51], electrochemical deposition [52][53][54][55] and anodization [56].…”

Section: Modifications Of Zno For Enhanced Photocatalytic Water Oxidamentioning

confidence: 99%

Photocatalytic Water Oxidation on ZnO: A Review

2017

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Abstract:The investigation of the water oxidation mechanism on photocatalytic semiconductor surfaces has gained much attention for its potential to unlock the technological limitations of producing H 2 from carbon-free sources, i.e., H 2 O. This review seeks to highlight the available scientific and fundamental understanding towards the water oxidation mechanism on ZnO surfaces, as well as present a summary on the modification strategies carried out to increase the photocatalytic response of ZnO.

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High quality nitrogen-doped zinc oxide thin films grown on ITO by sol–gel method

Cited by 20 publications

References 29 publications

Visible-Light-Active Doped Metal Oxide Nanoparticles: Review of their Synthesis, Properties, and Applications

Visible-Light-Active Doped Metal Oxide Nanoparticles: Review of their Synthesis, Properties, and Applications

Low temperature-processed ZnO thin films for p–n junction-based visible-blind ultraviolet photodetectors

Photocatalytic Water Oxidation on ZnO: A Review

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