Optical waveguide based on ZnO nanowires prepared by a thermal evaporation process

Jiang, Dayong; Zhao, Jian; Zhao, Ming; Liang, Qing; Gao, Shang; Qin, Jie; Zhao, Yiming; Li, A.

doi:10.1016/j.jallcom.2012.03.114

Cited by 19 publications

(6 citation statements)

References 26 publications

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“…On the other hand, production methods from the vapor phase are also actively used to obtain nanostructured materials. They include thermal evaporation [22], pulsed laser deposition [23], physical vapor deposition [24], chemical vapor deposition [25], organometallic chemical deposition (MOCVD) [26], plasma-enhanced chemical deposition (PEMOCVD) [27] and molecular beam epitaxy [28]. These methods allow to control the mechanism of growth of ZnO, manipulating the initial temperature of nucleation.…”

Section: The Mechanism Of Photocatalysis and Technological Methods Of Synthesis Of Zno Based Nanostructuresmentioning

confidence: 99%

A Review of the some aspects for the development of ZnO based photocatalysts for a variety of applications

Baibara

Radchenko

Karpyna

et al. 2021

Phys. Chem. Solid St.

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Today, one of the most important problems for humanity is the pollution of the environment with various organic compounds that worsen the health of the peoples. The most dangerous pollutants are complex compounds that do not degrade under natural conditions. One way to solve the problem of pollution is to use photocatalysis to degrade harmful compounds. Zinc oxide nanostructures exhibit attractive photocatalytic and antibacterial properties due to the increased reactivity of the nanoparticle surface, which allows the efficient decomposition of organic pollutants. In this review, various methods for enhancing the photoefficiency of ZnO nanostructures are considered. It is shown that ZnO nanoparticles with specific surfaces (spherical, nanowires, nanoflowers), which are characterized by a high surface area, have a high removal rate of various pollutants. Such methods of improving the photocatalytic properties of ZnO as the band gap engineering, doping with metal/nonmetal, the combination of ZnO with other materials, formation of hybrid structures are considered.

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Section: The Mechanism Of Photocatalysis and Technological Methods Of Synthesis Of Zno Based Nanostructuresmentioning

confidence: 99%

A Review of the some aspects for the development of ZnO based photocatalysts for a variety of applications

Baibara

Radchenko

Karpyna

et al. 2021

Phys. Chem. Solid St.

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“…This is in contrast to the omnidirectional emission of typical scintillators that results in the majority of the emitted light not being detected, as seen in Figure 27. ZnO nanowires with their hexagonal structure and sharp faceted ends provide an ideal morphology for waveguiding and have been researched extensively for this property [86][87][88][89] . The wavelength of the light, cavity diameter, and coupling angle can all strongly affect which optical modes set up inside of the nanowire cavity and whether efficient waveguiding will occur.…”

Section: Waveguiding Effectsmentioning

confidence: 99%

Zinc oxide nanowire gamma ray detector with high spatiotemporal resolution

et al. 2016

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To my mom, Linda.iii ACKNOWLEDGEMENTSThere are no words to express how grateful I am for all the people that have been part of my life during this journey. I could not have completed my PhD without their help, and I would first like to thank the two advisors that guided me through my graduate career.Professor Richard Mu accepted me as an REU student during my final summer as an undergraduate. After interacting with his group and getting a chance to do actual research in a lab, I changed my graduate path from computational physics to experimental physics and never looked back. Professor Mu's group has always felt like an extended family, where the members worked hard and helped each other without question. I also learned humility in his groupcelebrate the victories in the lab, but be mindful of the people and path that led to that point. I honestly can't begin to express how much I appreciate everything he has done to help me and my family over the years. He has been there through all of the ups and downs in my personal and professional life, and I am honored for the chance to continue to work with him in the future.Professor Richard Haglund accepted me into his group at Vanderbilt after I finished my Master's at Fisk University. I struggled at the beginning while trying to balance course work with research and family, and he gave me some of the best advice I've ever received. He told me that my future was in my hands and that I would fail or succeed based on my own actions. That motivated me to work harder than I had ever worked and is something I still carry with me today.I also want to thank Professor Haglund for instilling within me a deeper appreciation for the elegance of physics, from cascade lasers to perturbation theory. His depth of knowledge and work-life balance are inspiring, and I look forward to working with him in future projects. My mom and dad worked extremely hard to provide a solid foundation for me and my brother. I couldn't ask for better parents. My dad worked to provide for our family, and my mom put her career on hold to stay home with me and my brother. They encouraged us to reach for the stars and to always choose the right path, even if it was the more difficult one. I am who I am today due in large part to the sacrifices, encouragement, and love that my parents provided.

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“…Recently, the semiconducting material ZnO having a wide band gap (3.37 eV) has earned a lot of attention as it exhibits various application domains such as fascinating optical, luminescence, chemical, electrical, and biological properties. , ZnO nanoparticles exhibit an extensive series of promising applications in photodetectors, antibacterial treatment, catalysis, transparent transistors, UV-light emitters, fabrication of gas sensors, solar cells, piezoelectric transducers, short-wavelength optoelectronic devices (LED and lasers), and so forth. , Various methods and techniques including thermal evaporation, − hydrothermal synthesis, , electrodeposition, arc discharge, vapor phase transport process, − thermal annealing method, pyrolysis, − laser ablation, sol–gel process, electro-spinning, and chemical vapor deposition , have been employed to synthesize the ZnO nanoparticles with varied morphology. Among the reported methods of ZnO rod synthesis, a hydrothermal method has been utilized to fabricate ZnO rods in the present study.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of AgNi Nano-alloy-Decorated ZnO Nanocomposites as an Efficient and Novel Hybrid Catalyst to Degrade Noxious Organic Pollutants

2021

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Contamination through industrial effluents is a major threat to the environment. Degradation of organic pollutants remains a major challenge, and semiconductor-based catalysis is reported to be a viable solution. Recently, AgNi bimetallic alloy nanoparticles attracted great attention with superior properties. We report the synthesis of AgNi nano-alloy particles immobilized over the surface of ZnO hexagonal rods through an in situ chemical co-reduction process to develop a novel AgNi@ZnO nanocomposite for catalytic applications. The crystal structure, phase purity, morphology, particle size, and other properties of the as-synthesized AgNi@ZnO nanocomposite were scrutinized using powder X-ray diffraction, scanning electron microscopy, Raman spectroscopy, energy-dispersive X-ray analysis, multipoint Brunauer–Emmett–Teller, and transmission electron microscopy. The composite exhibits excellent catalytic activity toward the reduction of nitroarenes and environment polluting organic dyes. The synthesized nanocomposite shows enhanced catalytic activity with an incredible reaction rate constant, noticeable low degradation time, and greater stability. The catalyst is easily recyclable and exhibits consecutive catalytic cycle usage.

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Optical waveguide based on ZnO nanowires prepared by a thermal evaporation process

Cited by 19 publications

References 26 publications

A Review of the some aspects for the development of ZnO based photocatalysts for a variety of applications

A Review of the some aspects for the development of ZnO based photocatalysts for a variety of applications

Zinc oxide nanowire gamma ray detector with high spatiotemporal resolution

Fabrication of AgNi Nano-alloy-Decorated ZnO Nanocomposites as an Efficient and Novel Hybrid Catalyst to Degrade Noxious Organic Pollutants

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