نتایج جستجو برای: electron irradiation

تعداد نتایج: 366331  

1999
Koji Nakayama J. H. Weaver

Scanning tunneling microscopy studies show significant structural modifications that involved atom desorption and displacement following mild irradiation by electrons of 90–2000 eV. For Sis111ds7 3 7d, adatom layer vacancies increased monotonically with incident energy. For Sis100d-s2 3 1d, irradiation produced dimer vacancies, and ad-dimers as Si atoms transferred to the terrace. The modificat...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2010
J Brian Borak Daniel E Falvey

Photoinduced mediated electron transfer to N-alkylpicolinium(NAP)-based esters has previously been shown to induce release of carboxylate anions. In this mechanism, electrons are shuttled between a good electron donor through a sensitizer/mediator to the NAP group which subsequently induces C-O bond cleavage. Previous studies have used UV-absorbing mediators to initiate substrate release with h...

   Nickel-molybdenum oxidebimetallic nanoparticles were synthesized in ethylene glycol using the microwave irradiation technique. According to the results, successive reduction of nickel and molybdenum ions, followed by thermal treatment of obtained nanoparticles led to formation of core-shell structured nickel-molybdenum oxide nanoparticles. According to the results, the thickness of the s...

Hossein Safardoust-Hojaghan Masood Hamadanian, Masoud Salavati-Niasari, Mohammad Hassanpour, Seyed Alireza Mousavi

CeO2/ZnO nanocomposites were synthesized by microwave method that is the fast process. One of an eco-friendly solvent, ethylene glycol were used the effect of time and power of irradiation were investigated on morphology and size of nanoparticle. Prepared CeO2/ZnO nanocomposites are characterized with X-ray diffraction (XRD) analysis, Transmission Electron Microscopy (TEM), Fourier Transform In...

Davood Ghanbari, Shahab Khaghani, Shohreh Khaghani

Fe3O4 nanoparticles were synthesized in the presence of pepper extract as a capping agent via a hydrothermal method. Then palladium nanoparticles and Fe3O4-Pd nanocomposites were synthesized with the aid of pepper extract as a reducing agent. Vibrating Sample magnetometer illustrated that Fe3O4 nanoparticles have super paramagnetic behaviour. The photo catalytic behaviour of Fe3O4-Pd nanocompos...

Journal: :Chemical communications 2012
Dong Myung Jang Yoon Myung Hyung Soon Im Young Suk Seo Yong Jae Cho Chi Woo Lee Jeunghee Park Ah-Young Jee Minyung Lee

Detonated nanodiamonds (NDs) exhibit remarkable photocatalytic activity towards the hydrogen gas generation upon 532 nm laser pulse irradiation. Hydrogenation dramatically increases the quantum yield, suggesting that hydrogen-terminated sites work as electron reservoirs. NDs can also be used as effective photocatalysts to reduce graphene oxide. The resulting composites exhibit high and stable p...

2015
X. Guo H. Zheng S. W. King V. V. Afanas'ev M. R. Baklanov J. L. Shohet V. V. Afanas’ev J.-F. de Marneffe Y. Nishi

Articles you may be interested in Effects of vacuum ultraviolet irradiation on trapped charges and leakage currents of low-k organosilicate dielectrics Appl. Bandgap measurements of low-k porous organosilicate dielectrics using vacuum ultraviolet irradiation Appl. Influence of electron-beam and ultraviolet treatments on low-k porous dielectrics

2016
P. H. Smith T. Nuns N. J. Murray K. D. Stefanov J. P. D. Gow R. Burgon D. J. Hall A. D. Holland

For future space missions that are visiting hostile electron radiation environments, such as ESA’s JUICE mission, it is important to understand the effects of electron irradiation on silicon devices. This paper outlines a study to validate and improve upon the Non-Ionising Energy Loss (NIEL) model for high energy electrons in silicon using Charge Coupled Devices (CCD), CMOS Imaging Sensors (CIS...

2015
K. Kan J. Yang A. Ogata T. Kondoh M. Gohdo I. Nozawa T. Toigawa Y. Yoshida

A temporal electric field profile, which is a radially polarized terahertz (THz) pulse from an electron bunch, was measured by a large-aperture photoconductive antenna (PCA) with micro-structured concentric electrodes for the detection of THz pulses. Photo-induced charge carriers were generated by irradiation of femtosecond laser pulses on semiconductor plane of the electrodes on the PCA. Time-...

2017
P. H. Smith T. Nuns N. J. Murray K. D. Stefanov J. P. D. Gow R. Burgon D. J. Hall A. D. Holland

For future space missions that are visiting hostile electron radiation environments, such as ESA’s JUICE mission, it is important to understand the effects of electron irradiation on silicon devices. This paper outlines a study to validate and improve upon the Non-Ionising Energy Loss (NIEL) model for high energy electrons in silicon using Charge Coupled Devices (CCD), CMOS Imaging Sensors (CIS...

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