Results 71 to 80 of about 2,258 (200)

Oxygen and light sensitive field-effect transistors based on ZnO nanoparticles attached to individual double-wall carbon nanotubes

open access: yes, 2012
The attachment of semiconducting nanoparticles to carbon nanotubes is one of the most challenging subjects in nanotechnology. Successful high coverage attachment and control over the charge transfer mechanism and photo-current generation opens a wide ...
Chanaewa, Alina   +3 more
core   +1 more source

Προστασία επαφών ηλεκτρονόμου με varistor [PDF]

open access: yes, 2016
Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία.
Mavrakis, Vasileios   +1 more
core   +1 more source

Investigation of sintering kinetics of ZnO by observing reduction of the specific surface area [PDF]

open access: yes, 2007
Reduction of the specific surface area of porous ZnO during the sintering process was studied. ZnO powder was sintered at temperatures from 673 K to 1173 K. The decrease in the specific surface area was observed as a function of temperature and sintering
Labus, Nebojša   +3 more
core   +1 more source

Precursor impurity‐mediated effect in the photocatalytic activity of precipitated zinc oxide

open access: yesJournal of the American Ceramic Society, Volume 107, Issue 12, Page 8269-8280, December 2024.
Abstract Photocatalytic degradation of pollutants using nanoparticles presents a promising method globally. However, effectively harnessing light absorption while mitigating recombination and nanoparticle agglomeration remains challenging. Here, we explore the synthesis and characterization of zinc oxide nanoparticles for photocatalytic dye removal in ...
A. M. Ilyas   +3 more
wiley   +1 more source

The Effects of Electrical Degradation on the Microstructure of Metal Oxide Varistor [PDF]

open access: yes, 2001
In this paper, the findings from systematic experiments with the purpose to determine the degradation effect of single and multiple current pulses on the microstructure of the Metal Oxide (MO) varistor are described. Six distribution class varistors from
Mardira, K. P.   +2 more
core  

Effect of foreign impurity and growth temperatures on hexagonal structure and fundamental properties of ZnO nanorods

open access: yesMicroscopy Research and Technique, Volume 87, Issue 11, Page 2687-2700, November 2024.
This study primarily deals with the fundamental aspects of material science and structural, morphological, transport charge carriers, electron transfer kinetics, reactivity, stability, optical and electrical properties. This study develops a strong methodology between impurity (Gd and Ni) nanoparticles in ZnO crystal system and the performance and ...
T. Seydioglu   +4 more
wiley   +1 more source

Detection of failures in HV surge arrester using chaos pattern with deep learning neural network

open access: yesIET Science, Measurement &Technology, Volume 18, Issue 9, Page 603-615, November 2024.
This paper proposes a fault diagnosis method for HV surge arresters based on the chaotic system and CNN. Compared to AlexNet, HOG+BPNN, HOG+SVM, HOG+DT, and HOG+KNN detection methods, the accuracy of the method proposed in this paper is 97%. Abstract As a protective component of HV equipment, the primary function of a surge arrester is to mitigate the ...
Chun‐Chun Hung   +3 more
wiley   +1 more source

Optical and Thermal Characterization of Zinc Oxide-Based Ceramic Using Pyroelectric and Photopyroelectric Techniques [PDF]

open access: yes, 2009
The advantage of wide electrical band-gap of zinc oxide (ZnO) semiconductor has been used in many applications particularly as varistors, which are ceramic devices with highly non-linear current-voltage characteristics. For ZnO-based varistor system, one
Mohd Shapee, Sabrina
core  

Taguchi‐optimized spark plasma‐sintered nanostructured ZnO varistors with exceptional nonlinearity and energy‐absorption performance

open access: yesResults in Materials
This study presents a comprehensive investigation of advanced nanostructured ZnO-based varistors fabricated through Spark Plasma Sintering (SPS) and optimized via the Taguchi method.
Arash Vaghef-Koodehi
doaj   +1 more source

ZnO nanobelt based conductometric H2 and NO2 gas sensors [PDF]

open access: yes, 2005
Conductometric H2 and NO2 gas sensors based on single-crystalline ZnO nanobelt sensitive layers have been developed. These layers were deposited using a rf magnetron sputterer. TEM and SEM characterization methods were employed to study the morphology of
Choopun, S   +3 more
core   +1 more source

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