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A Study of Gallium Growth on Si(111) 7x7 by SRPES

ČECHAL, J.; BÁBOR, P.; SPOUSTA, J.; ŠIKOLA, T.

Original Title

A Study of Gallium Growth on Si(111) 7x7 by SRPES

English Title

A Study of Gallium Growth on Si(111) 7x7 by SRPES

Type

Audiovisual work

Original Abstract

We present the results of a study of gallium growth on Si(111) 7x7 substrates by SR-PES and LEED. Using synchrotron radiation core-level spectroscopy performed at the synchrotron Elettra in Trieste we were able to get high-resolution spectra during gallium deposition. The deposition was done at three different substrate temperatures - room, low (-180 C) and enhanced (350 C). The prepared gallium layers (up to a few MLs) were gradually annealed afterwards to study gallium desorption and its structural and morphological changes. The results of our study were compared with other complementary measurements done by thermodesorption spectroscopy (TDS), LEED, TOF-LEIS and XPS. The high sensitivity and resolution of SR - PES made us possible to reveal the relations between peak shape and intensity changes on one hand and the film thickness and morphology induced by Ga growth and thermal annealing on the other hand.

English abstract

We present the results of a study of gallium growth on Si(111) 7x7 substrates by SR-PES and LEED. Using synchrotron radiation core-level spectroscopy performed at the synchrotron Elettra in Trieste we were able to get high-resolution spectra during gallium deposition. The deposition was done at three different substrate temperatures - room, low (-180 C) and enhanced (350 C). The prepared gallium layers (up to a few MLs) were gradually annealed afterwards to study gallium desorption and its structural and morphological changes. The results of our study were compared with other complementary measurements done by thermodesorption spectroscopy (TDS), LEED, TOF-LEIS and XPS. The high sensitivity and resolution of SR - PES made us possible to reveal the relations between peak shape and intensity changes on one hand and the film thickness and morphology induced by Ga growth and thermal annealing on the other hand.

Keywords

Ga, Si(111), SRPES, photoelectron spectroscopy

Key words in English

Ga, Si(111), SRPES, photoelectron spectroscopy

Authors

ČECHAL, J.; BÁBOR, P.; SPOUSTA, J.; ŠIKOLA, T.

Released

25.09.2005

Location

Vienna

Edition

1

Pages from

259

Pages to

259

Pages count

1

BibTex

@misc{BUT63405,
  author="Jan {Čechal} and Petr {Bábor} and Jiří {Spousta} and Tomáš {Šikola}",
  title="A Study of Gallium Growth on Si(111) 7x7 by SRPES",
  year="2005",
  series="1",
  edition="1",
  pages="259--259",
  address="Vienna",
  note="Audiovisual work"
}