Journal ArticleDOI
Complex and oriented ZnO nanostructures
Zhengrong R. Tian,James A. Voigt,Jun Liu,Bonnie Beth McKenzie,Matthew J. Mcdermott,Mark A. Rodriguez,Hiromi Konishi,Huifang Xu +7 more
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TLDR
This work reports a low-temperature, environmentally benign, solution-based approach for the preparation of complex and oriented ZnO nanostructures, and the systematic modification of their crystal morphology.Abstract:
Extended and oriented nanostructures are desirable for many applications, but direct fabrication of complex nanostructures with controlled crystalline morphology, orientation and surface architectures remains a significant challenge. Here we report a low-temperature, environmentally benign, solution-based approach for the preparation of complex and oriented ZnO nanostructures, and the systematic modification of their crystal morphology. Using controlled seeded growth and citrate anions that selectively adsorb on ZnO basal planes as the structure-directing agent, we prepared large arrays of oriented ZnO nanorods with controlled aspect ratios, complex film morphologies made of oriented nanocolumns and nanoplates (remarkably similar to biomineral structures in red abalone shells) and complex bilayers showing in situ column-to-rod morphological transitions. The advantages of some of these ZnO structures for photocatalytic decompositions of volatile organic compounds were demonstrated. The novel ZnO nanostructures are expected to have great potential for sensing, catalysis, optical emission, piezoelectric transduction, and actuations.read more
Citations
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Direct-current nanogenerator driven by ultrasonic waves
TL;DR: A nanowire nanogenerator that is driven by an ultrasonic wave to produce continuous direct-current output and offers a potential solution for powering nanodevices and nanosystems.
Journal ArticleDOI
ZnO - nanostructures, defects, and devices
TL;DR: ZnO has received much attention over the past few years because it has a wide range of properties that depend on doping, including a range of conductivity from metallic to insulating (including n-type and p-type conductivity), high transparency, piezoelectricity, widebandgap semiconductivity, room-temperature ferromagnetism, and huge magneto-optic and chemical-sensing effects.
Journal ArticleDOI
One-dimensional ZnO nanostructures: Solution growth and functional properties
Sheng Xu,Zhong Lin Wang +1 more
TL;DR: A comprehensive overview of the progress that has been made within the context of 1D ZnO nanostructures synthesized via wet chemical methods can be found in this paper, where the synthetic methodologies and corresponding growth mechanisms, different structures, doping and alloying, position-controlled growth on substrates, and finally, their functional properties as catalysts, hydrophobic surfaces, sensors, and in nanoelectronic, optical, optoelectronics, and energy harvesting devices.
Journal ArticleDOI
Controlling Mineral Morphologies and Structures in Biological and Synthetic Systems
Fiona C. Meldrum,Helmut Cölfen +1 more
TL;DR: A comparison of Silicification in Diatoms and Bioinspired Routes to Controlling Crystal Morphologies shows the importance of knowing the carrier and removal status of the substance before and during silicification.
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Hydrothermal growth of ZnO nanostructures
Sunandan Baruah,Joydeep Dutta +1 more
TL;DR: This review summarizes the conditions leading to the growth of different ZnO nanostructures using hydrothermal technique.
References
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Room-temperature ultraviolet nanowire nanolasers
Michael H. Huang,Samuel S. Mao,Henning Feick,Haoquan Yan,Yiying Wu,Hannes Kind,Eicke R. Weber,Richard E. Russo,Peidong Yang,Peidong Yang +9 more
TL;DR: Room-temperature ultraviolet lasing in semiconductor nanowire arrays has been demonstrated and self-organized, <0001> oriented zinc oxide nanowires grown on sapphire substrates were synthesized with a simple vapor transport and condensation process.
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Nanobelts of Semiconducting Oxides
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Catalytic Growth of Zinc Oxide Nanowires by Vapor Transport
TL;DR: In this paper, the capacitance matrix was calculated for different chain lengths using the software package FastCap MIT (1992) and a ligand shell dielectric constant of 3.14 aF.
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Recent Advances in ZnO Materials and Devices
TL;DR: Wurtzitic ZnO is a widebandgap semiconductor which has many applications, such as piezoelectric transducers, varistors, phosphors, and transparent conducting films as discussed by the authors.
Journal ArticleDOI
Synthesis of Large Arrays of Well-Aligned Carbon Nanotubes on Glass
TL;DR: Large panels of aligned carbon nanotubes can be made under conditions that are suitable for device fabrication under plasma-enhanced hot filament chemical vapor deposition.