Сибирский федеральный университет

Тип публикации: статья из журнала (материалы конференций, опубликованные в журналах)

Конференция: International Vacuum Electron Sources Conference; SARATOV, RUSSIA; SARATOV, RUSSIA

Год издания: 2003

Идентификатор DOI: 10.1016/S0169-4332(03)00287-3

Ключевые слова: nanodiamond; surface states; PEELS; XPS; Auger electron spectroscopy

Аннотация: Electronic states of nanodiamond (ND) were investigated by PEELS, XPS and CKVV Auger spectra. Parallel electron energy loss spectra (PEELS) show that the electrons inside of ND particles are sp(3) hybridized but there is a surface layer containing distinct hybridized states. The CKVV Auger spectra imply that the HOMO of the ND surface has a shift of 2.5 eV from natural diamond levels of sigma(p) up to the Fermi level. Hydrogen (H) treatment of natural diamond surface produces a chemical state indistinguishable from that of ND surfaces using CKVV. The ND electronic structure forms sigma(s)(1)sigma(p)(2)pi(1) surface states without overlapping of pi-levels. Surface electronic states, including surface plasmons, as well as phonon-related electronic states of the ND surface are also interesting and may also be important for field emission mechanisms from the nanostructured diamond surface. (C) 2003 Elsevier Science B.V. All rights reserved.

Журнал: APPLIED SURFACE SCIENCE

Выпуск журнала: Vol. 215, Is. 1-4

Номера страниц: 169-177

ISSN журнала: 01694332

Место издания: AMSTERDAM

Издатель: ELSEVIER SCIENCE BV

• Belobrov P.I. (KRASNOYARSK STATE UNIV)
• Bursill L.A. (KRASNOYARSK STATE UNIV)
• Maslakov K.I. (KRASNOYARSK STATE UNIV)
• Dementjev A.P. (KRASNOYARSK STATE UNIV)

• Web of Science Core Collection