Results 231 to 240 of about 25,254 (275)

Resistive Switching Characteristics of ZnO Nanowires

Journal of Nanoscience and Nanotechnology, 2014
Binary transition metal oxides such as ZnO, TiO2, and MnO; and their various structures such as thin film, nanowire, and nanoparticle assembly; have been widely investigated for use in insulators in resistive random access memory (ReRAM), considered a next-generation nonvolatile memory device. Among the various driving mechanisms of resistive switching
Yoo, Eun Ji, Shin, Il Kwon, Yoon, Tae Sik, Choi, Young Jin, Kang, Chi Jung   +4 more
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A ZnO nanowire vacuum pressure sensor

Nanotechnology, 2008
In this study, we report the growth and characterization of lateral ZnO nanowires (NWs) on ZnO:Ga/glass templates. Using x-ray diffraction and micro-Raman spectroscopy, it was found that crystal quality of the as-grown ZnO NWs is good. It was also found that the average length and average diameter of the laterally grown ZnO NWs were 5 µm and 30 nm ...
Shoou-Jinn, Chang, Ting-Jen, Hsueh, Cheng-Liang, Hsu, Yan-Ru, Lin, I-Cherng, Chen, Bohr-Ran, Huang   +5 more
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Thermal Conductivity of ZnO Single Nanowire

Journal of Nanoscience and Nanotechnology, 2016
The thermal conductivity of a single ZnO nanowire with diameter of ~150 nm was measured using a four-point-probe 3omega method over a temperature range of 140-300 K. The measured ther- mal conductivity of ZnO nanowire is strongly reduced compared to bulk ZnO crystal due to the enhanced phonon-boundary and impurity (isotope) scattering.
Sh U, Yuldashev, V Sh, Yalishev, H D, Cho, T W, Kang   +3 more
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DNA - Directed Synthesis of ZnO Nanowires

MRS Proceedings, 2008
AbstractIn this paper, a new and simple method for the synthesis of ZnO nanowires under very mild conditions is presented. The nanowire preparation is based on mineralization from alkaline aqueous zinc nitrate solution in the presence of fish sperm DNA as a structure-directing agent.
Jost, M., Atanasova, P., Gerstel, P., Sigle, W., van Aken, P., Bill, J.   +5 more
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Second‐harmonic generation from ZnO nanowires

physica status solidi c, 2008
AbstractOptical second‐harmonic generation (SHG) from ZnO nanowires is investigated in the region around the band gap. Strong multiphoton excited luminescence and SHG appearing together in the spectra from wires are separated and the SHG part is compared to that of a bulk crystal.
Pedersen, Kjeld, Fisker, Christian, Pedersen, Thomas Garm   +2 more
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Magnetotransport in Co-Doped ZnO Nanowires

Nano Letters, 2009
Electrical and magnetotransport measurements were performed on individual Co-doped ZnO dilute magnetic semiconductor nanowires. The electron transport studies show that the electron mobility could be as high as 75 cm(2)/(V.s), and we observed positive magnetoresistivity (MR) at low magnetic field and negative MR at higher magnetic field.
Wenjie, Liang, Benjamin D, Yuhas, Peidong, Yang   +2 more
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Electrical properties of individual ZnO nanowires

Nanotechnology, 2009
The electrical properties of individual ZnO nanowires were investigated for two methods of fabricating nanowire-electrode junctions. The number of carriers in the nanowires was increased by electrostatically doping them by applying a gate voltage. The nanowires were chemically doped by introducing impurities during growth.
M, Sakurai, Y G, Wang, T, Uemura, M, Aono   +3 more
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Electrical properties of ZnO single nanowires

Nanotechnology, 2015
We have investigated the electrical resistance R(T) of ZnO nanowires of ≈ 400 nm diameter as a function of temperature, between 30 K and 300 K, and frequency in the range 40 Hz to 30 MHz. The measurements were done on the as-prepared and after low-energy proton implantation at room temperature.
Stiller, M., Barzola-Quiquia, J., Zoraghi, M., Esquinazi, P.   +3 more
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Nanowire Array Gratings with ZnO Combs

Nano Letters, 2005
Diffraction gratings are mainly manufactured by mechanical ruling, interference lithography, or resin replication, which generally require expensive equipment, complicated procedures, and a stable environment. We describe the controlled growth of self-organized microscale ZnO comb gratings by a simple one-step thermal evaporation and condensation ...
Zheng Wei, Pan, Shannon M, Mahurin, Sheng, Dai, Douglas H, Lowndes   +3 more
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Aligned growth of ZnO nanowires and lasing in single ZnO nanowire optical cavities

Applied Physics B, 2008
Ordered ZnO nanowire arrays have been fabricated in N2 background gas by catalyst-free nanoparticle-assisted pulsed-laser deposition. A single ZnO nanowire was collected in an electrode gap by dielectrophoresis. Under the optical pumping above an exciting laser (λ= 355 nm) threshold of ∼ 334 kW/cm2, ultraviolet lasing action in a single ZnO nanowire ...
R.Q. Guo, J. Nishimura, M. Matsumoto, M. Higashihata, D. Nakamura, J. Suehiro, T. Okada   +6 more
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