Architecting epitaxial-lattice-mismatch-free (LMF) zinc oxide/bismuth oxyiodide nano-heterostructures for efficient photocatalysis

2020 ◽  
Vol 8 (32) ◽  
pp. 11263-11273
Author(s):  
Han Feng ◽  
Liangliang Liang ◽  
Weiyi Wu ◽  
Zhaohong Huang ◽  
Yu Liu
Keyword(s):  
Zinc Oxide ◽  
Solar Energy ◽  
Organic Pollutants ◽  
Lattice Mismatch ◽  
Important Chemical

Developing efficient photocatalysts has been proved to be of great importance for many emerging applications, including the removal of recalcitrant organic pollutants in wastewaters and transforming solar energy into important chemical feedstocks.

Electrical properties of zinc oxide thin films deposited using high-energy H2O generated from a catalytic reaction on platinum nanoparticles

2013 ◽  
Vol 1494 ◽  
pp. 127-132
Author(s):  
Kanji Yasui ◽  
Naoya Yamaguchi ◽  
Eichi Nagatomi ◽  
Souichi Satomoto ◽  
Takahiro Kato
Keyword(s):  
Zinc Oxide ◽  
Electrical Properties ◽  
Film Thickness ◽  
Electron Mobility ◽  
Lattice Mismatch ◽  
Defect Density ◽  
Chemical Vapor ◽  
High Energy ◽  
Chemical Vapor Deposition Method ◽  
Zno Films

ABSTRACTZinc oxide (ZnO) with excellent crystallinity and large electron mobility was grown on aplane (11-20) sapphire (a-Al2O3) substrates by a new chemical vapor deposition method via the reaction between dimethylzinc (DMZn) and high-energy H2O produced by a Pt-catalyzed H2-O2 reaction. The electron mobility at room temperature increased from 30 cm2/Vs to 189 cm2/Vs with increasing film thickness from 0.1 μm to approximately 3 μm. Electron mobility increased significantly with decreasing temperature to approximately 110 – 150 K, but decreased at temperatures less than 100 K for films greater than 500 nm in thickness. On the other hand, the mobility hardly changed with temperature for films lesser than 500 nm in thickness. Based on the dependence of the electrical properties on the film thickness, the ZnO films grown on a-Al2O3 substrates are considered to consist of an interfacial layer with a high defect density (degenerate layer) generated due to a large lattice mismatch between ZnO and Al2O3 substrates and an upper layer with a low defect density.

Treatment of Organic Pollutants Using a Solar Energy Driven Photo-Oxidation Device

2017 ◽  
Vol 1 (6) ◽  
pp. 1700010 ◽  
Author(s):  
Paula Perez-Rodriguez ◽  
Yasmina Bennani ◽  
Mathew Jose Alani ◽  
Wilson Smith ◽  
Luuk Cornelis Rietveld ◽  
...  
Keyword(s):  
Solar Energy ◽  
Organic Pollutants ◽  
Photo Oxidation

scholarly journals Zinc oxide-decorated polypyrrole/chitosan bionanocomposites with enhanced photocatalytic, antibacterial and anticancer performance

RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 41135-41150 ◽  
Author(s):  
Nafees Ahmad ◽  
Saima Sultana ◽  
Syed Mohd Faisal ◽  
Anees Ahmed ◽  
Suhail Sabir ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Organic Pollutants ◽  
Biomedical Applications ◽  
Chitosan Chain

Bio-nanocomposites were synthesized via grafting polypyrrole/ZnO onto chitosan chain for the photodegradation of organic pollutants and biomedical applications.

Construction of a Semiconductor–Biological Interface for Solar Energy Conversion: p-Doped Silicon/Photosystem I/Zinc Oxide

Langmuir ◽  
2015 ◽  
Vol 31 (36) ◽  
pp. 10002-10007 ◽  
Author(s):  
Jeremiah C. Beam ◽  
Gabriel LeBlanc ◽  
Evan A. Gizzie ◽  
Borislav L. Ivanov ◽  
David R. Needell ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Solar Energy ◽  
Energy Conversion ◽  
Photosystem I ◽  
Solar Energy Conversion ◽  
Biological Interface ◽  
Doped Silicon

Growth of c-plane and m-plane aluminium-doped zinc oxide thin films: epitaxy on flexible substrates with cubic-structure seeds

2020 ◽  
Vol 76 (2) ◽  
pp. 233-240
Author(s):  
Yongkuan Li ◽  
Xinxing Liu ◽  
Dan Wen ◽  
Kai Lv ◽  
Gang Zhou ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Indium Tin Oxide ◽  
High Performance ◽  
Lattice Mismatch ◽  
Optoelectronic Devices ◽  
Flexible Substrates ◽  
Glass Substrates ◽  
Electrical Polarity ◽  
Cubic Structure ◽  
Tin Oxide Films

Manufacturing high-quality zinc oxide (ZnO) devices demands control of the orientation of ZnO materials due to the spontaneous and piezoelectric polarity perpendicular to the c-plane. However, flexible electronic and optoelectronic devices are mostly built on polymers or glass substrates which lack suitable epitaxy seeds for the orientation control. Applying cubic-structure seeds, it was possible to fabricate polar c-plane and nonpolar m-plane aluminium-doped zinc oxide (AZO) films epitaxially on flexible Hastelloy substrates through minimizing the lattice mismatch. The growth is predicted of c-plane and m-plane AZO on cubic buffers with lattice parameters of 3.94–4.63 Å and 5.20–5.60 Å, respectively. The ∼80 nm-thick m-plane AZO film has a resistivity of ∼11.43 ± 0.01 × 10−4 Ω cm, while the c-plane AZO film shows a resistivity of ∼2.68 ± 0.02 × 10−4 Ω cm comparable to commercial indium tin oxide films. An abnormally higher carrier concentration in the c-plane than in the m-plane AZO film results from the electrical polarity along the c-axis. The resistivity of the c-plane AZO film drops to the order of 10−5 Ω cm at 500 K owing to the semiconducting behaviour. Epitaxial AZO films with low resistivities and controllable orientations on flexible substrates offer optimal transparent electrodes and epitaxy seeds for high-performance flexible ZnO devices.

Enhanced visible light induced photocatalytic activity on the degradation of organic pollutants by SnO nanoparticle decorated hierarchical ZnO nanostructures

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89721-89731 ◽  
Author(s):  
S. Harish ◽  
J. Archana ◽  
M. Navaneethan ◽  
A. Silambarasan ◽  
K. D. Nisha ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Hydrothermal Method ◽  
Organic Pollutants ◽  
Tin Oxide ◽  
Two Dimensional ◽  
Zno Nanostructures

One (1D) and two-dimensional (2D) nanostructures of zinc oxide and tin oxide (ZnO/SnO) nanocomposites were synthesized by a hydrothermal method using ethylenediamine (EDA) as a capping ligand.

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