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1.


   
    Surface properties of nanodiamond films deposited by electrophoresis on Si(100) / E. Maillard-Schaller [et al.] // Diamond and Related Materials. - 1999. - Vol. 8, Is. 2-5. - P805-808 . - ISSN 0925-9635
Кл.слова (ненормированные):
Energy band diagram -- Nanodiamond -- Raman spectroscopy -- Surface characterization -- Band structure -- Electrodeposition -- Electrophoresis -- Hydrogen -- Nanostructured materials -- Nitrogen -- Oxidation -- Oxygen -- Phonons -- Plasma applications -- Silicon wafers -- Surface properties -- Dielectrophoresis -- Negative electron affinity (NEA) -- Phonon confinement effect -- Diamond films
Аннотация: The surface properties of diamond nanoparticles (40-50 A in diameter) have been investigated by X-ray photoelectron spectroscopy (XPS), UV photoelectron spectroscopy (UPS) and Raman spectroscopy. The diamond nanoparticles have been deposited on flat Si(100) substrates by electrophoresis/dielectrophoresis. The as-deposited films are strongly oxidized and present a 1-2% nitrogen content. After treatment at 850 В°C in H2 plasma for 60 min, the oxygen is removed, and the position of the C 1s core-level peak indicates a n-type electronic comportment of the diamond nanoparticles. Raman spectroscopy of the as-deposited film shows a sp3 contribution at 1321 cm-1 and a sp2 contribution around 1620 cm-1. The 12 cm-1 shift of the sp3 contribution with respect to the bulk diamond peak at 1333 cm-1 is attributed to a phonon confinement effect due to the size of the diamond particles. The H2 plasma treatment induces a size decrease of the nanocrystallites confirmed by Raman and scanning electron microscopy (SEM) measurements. UPS spectroscopy shows a negative electron affinity of -0.2 eV of the hydrogenated nanodiamond film.

Scopus
Держатели документа:
Solid State Physics Department, University of Fribourg, 1700, Fribourg, Switzerland
Institute of Christallography, 117333, Moscow, Russian Federation
Institute of Biophysics, 660036, Krasnoyarsk, Russian Federation : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Maillard-Schaller, E.; Kuettel, O.M.; Diederich, L.; Schlapbach, L.; Zhirnov, V.V.; Belobrov, P.I.

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2.


   
    Electrophoresis of nanodiamond powder for cold cathode fabrication [Text] / A. N. Alimova [et al.] // J. Vac. Sci. Technol. B. - 1999. - Vol. 17: 11th International Vacuum Microelectronics Conference (IVMC 98) (JUL 19-23, 1998, ASHEVILLE, NORTH CAROLINA), Is. 2. - P715-718, DOI 10.1116/1.590625. - Cited References: 5 . - 4. - ISSN 1071-1023
РУБ Engineering, Electrical & Electronic + Nanoscience & Nanotechnology + Physics, Applied
Рубрики:
FIELD-EMISSION
   TIPS

Аннотация: The process of electrophoresis/dielectrophoresis of shock-synthesized nanodiamond powders on the large-area Si field emission arrays was studied. The process was found to be very sensitive to the modification of nanodiamond powder. The growth rate and film morphology of nanodiamond coatings on Si tips were investigated. Results in fabrication and testing of nanodiamond-based cold cathodes and sealed device prototypes are presented. (C) 1999 American Vacuum Society. [S0734-211X(99)06002-3].

Держатели документа:
Russian Acad Sci, Inst Crystallog, Moscow 117333, Russia
ISTOK, State Res & Prod Corp, Fryazino 141120, Moscow Region, Russia
Russian Acad Sci, Inst Biophys, Krasnoyarsk 660036, Russia
Russian Fed Nucl Ctr, Snezhinsk 456770, Russia : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Alimova, A.N.; Chubun, N.N.; Belobrov, P.I.; Detkov, P.Y.; Zhirnov, V.V.

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