Hydrogenation of diamond nanowire surfaces for effective electrostatic charge storage

Nanoscale ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 7308-7321
Author(s):  
Kalpataru Panda ◽  
Jae-Eun Kim ◽  
Kamatchi Jothiramalingam Sankaran ◽  
I-Nan Lin ◽  
Ken Haenen ◽  
...  

Hydrogenation effect on the morphology of (a) DNW0 and (b−d) hydrogenated DNWs for (b) 5 min (DNW5), (c) 10 min (DNW10), and (d) 15 min (DNW15) (e) Charge patterning on DNW10 (f) Hydrogenation period dependent charge storage on DNW materials.

Author(s):  
Michel Fialin ◽  
Guy Rémond

Oxygen-bearing minerals are generally strong insulators (e.g. silicates), or if not (e.g. transition metal oxides), they are included within a rock matrix which electrically isolates them from the sample holder contacts. In this respect, a thin carbon layer (150 Å in our laboratory) is evaporated on the sections in order to restore the conductivity. For silicates, overestimated oxygen concentrations are usually noted when transition metal oxides are used as standards. These trends corroborate the results of Bastin and Heijligers on MgO, Al2O3 and SiO2. According to our experiments, these errors are independent of the accelerating voltage used (fig.l).Owing to the low density of preexisting defects within the Al2O3 single-crystal, no significant charge buildup occurs under irradiation at low accelerating voltage (< 10keV). As a consequence, neither beam instabilities, due to electrical discharges within the excited volume, nor losses of energy for beam electrons before striking the sample, due to the presence of the electrostatic charge-induced potential, are noted : measurements from both coated and uncoated samples give comparable results which demonstrates that the carbon coating is not the cause of the observed errors.


Author(s):  
Dean A. Handley ◽  
Lanping A. Sung ◽  
Shu Chien

RBC agglutination by lectins represents an interactive balance between the attractive (bridging) force due to lectin binding on cell surfaces and disaggregating forces, such as membrane stiffness and electrostatic charge repulsion (1). During agglutination, critical geometric parameters of cell contour and intercellular distance reflect the magnitude of these interactive forces and the size of the bridging macromolecule (2). Valid ultrastructural measurements of these geometric parameters from agglutinated RBC's require preservation with minimal cell distortion. As chemical fixation may adversely influence RBC geometric properties (3), we used chemical fixation and cryofixation (rapid freezing followed by freeze-substitution) as a comparative approach to examine these parameters from RBC agglutinated with Ulex I lectin.


1964 ◽  
Vol 27 (4) ◽  
pp. 293 ◽  
Author(s):  
W.D. Ryan ◽  
H.B. Williams
Keyword(s):  

2000 ◽  
Author(s):  
G. Mainelis ◽  
K. Willeke ◽  
S. Grinshpun ◽  
T. Reponen ◽  
S. Trakumas ◽  
...  

2003 ◽  
Vol 775 ◽  
Author(s):  
Ivan Stanish ◽  
Daniel A. Lowy ◽  
Alok Singh

AbstractImmobilized polymerized electroactive vesicles (IPEVs) are submicron biocapsules capable of storing charge in confined environments and chemisorbing on surfaces. Methods to immobilize stable submicron sized electroactive vesicles and the means to measure electroactivity of IPEVs at nanolevels have been demonstrated. IPEVs can withstand steep potential gradients applied across their membrane, maintain their structural integrity against surfaces poised at high/low electrical potentials, retain electroactive material over several days, and reversibly mediate (within the membrane) electron flow between the electrode surface and vesicle interior. IPEVs have strong potential to be used for charge storage and electron coupling applications that operate on the submicron scale and smaller.


Author(s):  
Kazuki Kida ◽  
Manabu Kitamata ◽  
Kazutaka Ikeda ◽  
Kazuhiro Takemura ◽  
Takehiko Inaba ◽  
...  

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