Communication—Electron-Beam Stimulated Release of Dislocations from Pinning Sites in GaN

Abstract To achieve low leakage in GaN-based power devices and improve reliability in optoelectronic devices such as laser diodes, it is necessary to reduce dislocation density in epitaxial layers and control their introduction during processing. We have previously shown that dislocations can be introduced at room temperature in GaN. The effect of electron-beam irradiation at fixed points on the shift of such freshly introduced dislocations in GaN is reported. Dislocations can be displaced up to 10-15 µm from the beam position. We conclude the main reason limiting the dislocation travelling distance is the existence of a high number of pinning sites.

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Optimization of the Display Parameters of a Room Temperature Nematic Material (6CHBT) by Using Electron Beam Irradiation

Journal of Display Technology ◽

10.1109/jdt.2009.2033393 ◽

2010 ◽

Vol 6 (1) ◽

pp. 8-13 ◽

Cited By ~ 13

Author(s):

Rohit Verma ◽

Ravindra Dhar ◽

M. C. Rath ◽

Sisir K. Sarkar ◽

V. K. Wadhawan ◽

...

Keyword(s):

Electron Beam ◽

Room Temperature ◽

Electron Beam Irradiation ◽

Beam Irradiation

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Coalescence between Au nanoparticles as induced by nanocurvature effect and electron beam athermal activation effect

Nanoscale ◽

10.1039/c7nr09710g ◽

2018 ◽

Vol 10 (17) ◽

pp. 7978-7983 ◽

Cited By ~ 1

Author(s):

Liang Cheng ◽

Xianfang Zhu ◽

Jiangbin Su

Keyword(s):

Electron Beam ◽

Electron Microscope ◽

Transmission Electron Microscope ◽

Room Temperature ◽

Electron Beam Irradiation ◽

Au Nanoparticles ◽

Beam Irradiation ◽

Activation Effect ◽

Transmission Electron

The coalescence of two single-crystalline Au nanoparticles on surface of amorphous SiOxnanowire, as induced by electron beam irradiation, wasin situstudied at room temperature in a transmission electron microscope.

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Changes in characteristics of Pt-functionalized RGO nanocomposites by electron beam irradiation for room temperature NO2 sensing

Ceramics International ◽

10.1016/j.ceramint.2020.05.271 ◽

2020 ◽

Vol 46 (13) ◽

pp. 21638-21646

Author(s):

Ali Mirzaei ◽

Jae Hoon Bang ◽

Myung Sik Choi ◽

Seungmin Han ◽

Ha Young Lee ◽

...

Keyword(s):

Electron Beam ◽

Room Temperature ◽

Electron Beam Irradiation ◽

Beam Irradiation

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Misting-free diamond surface created by sheet electron beam irradiation

Journal of Materials Research ◽

10.1557/jmr.2001.0079 ◽

2001 ◽

Vol 16 (2) ◽

pp. 553-557 ◽

Cited By ~ 90

Author(s):

Kazuya Oguri ◽

Nobuhiro Iwataka ◽

Akira Tonegawa ◽

Yoichi Hirose ◽

Kazuo Takayama ◽

...

Keyword(s):

Electron Beam ◽

Size Distribution ◽

Room Temperature ◽

Electron Beam Irradiation ◽

Diamond Surface ◽

Beam Irradiation ◽

Duration Time ◽

Clear Vision ◽

Sheet Electron Beam ◽

Short Time

We developed a diamond surface that does not mist near the room temperature under a saturated humidity atmosphere, by sheet electron beam irradiation (SEBI) treatment. SEBI treatment decreased the time to clear vision of the diamond surface. Following SEBI treatment for 1.91 s (= 0.72 MGy) to a diamond surface, the time to clear vision was less than 2 s. The effective duration time was a few hours. Based on the results of the size distribution of the drops on the misting-free diamond surface following blowing for 3 s, we proposed an explanation for the short time to clear vision of the diamond surface treated by SEBI.

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Radiation Resistance and Virulence of Listeria monocytogenes Scott A following Starvation in Physiological Saline

Journal of Food Protection ◽

10.4315/0362-028x-67.3.470 ◽

2004 ◽

Vol 67 (3) ◽

pp. 470-474 ◽

Cited By ~ 36

Author(s):

A. F. MENDONCA ◽

M. G. ROMERO ◽

M. A. LIHONO ◽

R. NANNAPANENI ◽

M. G. JOHNSON

Keyword(s):

Electron Beam ◽

Listeria Monocytogenes ◽

Yeast Extract ◽

Radiation Resistance ◽

Electron Beam Irradiation ◽

Physiological Saline ◽

Beam Irradiation ◽

Log Reduction ◽

Ground Pork ◽

And Control

The influence of starvation on the resistance of Listeria monocytogenes Scott A to electron beam irradiation in 0.85% (wt/vol) NaCl (saline) and in ground pork was investigated. Exponential- or stationary-phase cells (control) were grown at 35°C in tryptic soy broth supplemented with 0.6% yeast extract. Washed cells were starved for 12 days in saline, and virulence of the pathogen was evaluated at 0, 8, and 12 days during starvation. Samples of saline and irradiation-sterilized ground pork, inoculated with control or starved cells, were irradiated at doses ranging from 0.0 to 2.5 kGy. L. monocytogenes survivors were determined by plating diluted samples of saline or pork on tryptic soy agar supplemented with 0.6% yeast extract and counting bacterial colonies following incubation (35°C, 48 h). Virulence of starved cells and control was not significantly different (P > 0.05). Cells exhibited the highest radiation resistance at 8 days of starvation. Irradiation (0.5 kGy) in saline resulted in approximately 7.14, 5.55, and 2.38 log reduction in exponential, stationary, and starved cells, respectively. Irradiation of ground pork at 2.5 kGy reduced controls by approximately 6.0 log, whereas starved cells were reduced by only 3.8 log. Starved cells consistently exhibited higher irradiation D10-values than controls (P < 0.05). D10-values for exponential, stationary, and starved cells were 0.07, 0.09, and 0.21 kGy and 0.35, 0.42, and 0.66 kGy in saline and ground pork, respectively. These results indicate that starvation cross-protects L. monocytogenes Scott A against radiation inactivation and should be considered when determining this pathogen's irradiation D-value.

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Electron beam-based fabrication of crosslinked hydrophilic carbon electrodes and their application for capacitive deionization

RSC Advances ◽

10.1039/c8ra10527h ◽

2019 ◽

Vol 9 (17) ◽

pp. 9684-9691

Author(s):

Hyo-Sub Kim ◽

Joon-Yong Sohn ◽

In-Tae Hwang ◽

Junhwa Shin ◽

Chan-Hee Jung ◽

...

Keyword(s):

Electron Beam ◽

Room Temperature ◽

Electron Beam Irradiation ◽

Carbon Electrodes ◽

Carbon Electrode ◽

Capacitive Deionization ◽

Beam Irradiation

A crosslinked hydrophilic carbon electrode with better desalination performance can easily be produced using room-temperature, quick electron-beam irradiation.

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Electron-beam irradiation as a quarantine treatment against red mite on exported cut flower of Chrysanthemum

Nuclear Science and Technology ◽

10.53747/jnst.v6i2.156 ◽

2021 ◽

Vol 6 (2) ◽

pp. 47-51

Author(s):

Thi Ly Nguyen ◽

Thi The Doan ◽

Kim Lang Vo Thi ◽

Van Chung Cao

Keyword(s):

Electron Beam ◽

Irradiation Dose ◽

Room Temperature ◽

Electron Beam Irradiation ◽

Developmental Stages ◽

Observation Time ◽

Hatching Rate ◽

Potential Treatment ◽

Cut Flower ◽

Beam Irradiation

Utilization of phytosanitary irradiation as a potential treatment to disinfest agricultural commodities in trade has expanded rapidly in the recent years. In this study, red mites (Tetranychus sp) isolated from cut Chrysanthemums were treated by electron beam irradiation at doses of 100, 200, 300 and 400 Gy. After irradiation, they were kept at room temperature to determine the effects of electron beam irradiation on red mite at different developmental stages (eggs, nymphs and adults) and the reproduction of female adults. The results showed that the pattern of tolerance to irradiation in red mite was eggs < 2nd instars < adults, in which the adults were the most tolerance stage. The number of eggs laid by the irradiated female mites and the hatching rate significantly decreased when the irradiation dose increased. The hatching rate of eggs at 300 Gy was 4.25% and no larvae F1 survived during observation time. It could be concluded that 300 Gy is the effective quarantine dose for red mite infesting on cut chrysanthemums.

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Unstable Luminescence and "Memory Effect" in Nitrides Irradiated by Electron Beam

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.205-206.435 ◽

2013 ◽

Vol 205-206 ◽

pp. 435-440

Author(s):

Yana V. Kuznetsova ◽

Maria V. Zamoryanskaya

Keyword(s):

Electron Beam ◽

Memory Effect ◽

Room Temperature ◽

Electron Beam Irradiation ◽

Beam Irradiation

In this paper the effect of unstable luminescence in nitrides was studied, notably the phenomena of cathodoluminescent intensity rising under stationery electron beam irradiation with typical times of tens up to hundreds of seconds. Long-lasting impact by electron beam leads to changes of cathodoluminescence properties of irradiated area. The changes still remain even after keeping structures at room temperature for several days. Reversibility of this "memory effect" was examined. A model of effect observed was proposed and experimentally verified.

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