XPS investigation of the equilibrium segregation of antimony at germanium surface

N. Tabet

doi:10.1016/S0368-2048(00)00385-6

XPS investigation of the equilibrium segregation of antimony at germanium surface

N. Tabet^*

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Conference article › peer-review

5 Scopus citations

Abstract

X-ray Photoelectron Spectroscopy (XPS) has been used to investigate the antimony segregation at Ge surface. Heat treatments of various durations have been carried out under vacuum at T = 600 °C. Etching Ge surface with Argon ions prior to the heat treatment enhances drastically the segregation process. A high value of the antimony diffusion coefficient (D = 7×10^-10 cm²/s) was obtained from the experimental data. A shift of the Ge core levels towards the high binding energies was observed as the dopant surface density increases. The shift was related to the band bending that results from a high density of surface states.

Original language	English
Pages (from-to)	415-420
Number of pages	6
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	114-116
DOIs	https://doi.org/10.1016/S0368-2048(00)00385-6
State	Published - Mar 2001

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

Access to Document

10.1016/S0368-2048(00)00385-6

Cite this

@article{bb507ec3fd41430db0578ae16fb87026,

title = "XPS investigation of the equilibrium segregation of antimony at germanium surface",

abstract = "X-ray Photoelectron Spectroscopy (XPS) has been used to investigate the antimony segregation at Ge surface. Heat treatments of various durations have been carried out under vacuum at T = 600 °C. Etching Ge surface with Argon ions prior to the heat treatment enhances drastically the segregation process. A high value of the antimony diffusion coefficient (D = 7×10-10 cm2/s) was obtained from the experimental data. A shift of the Ge core levels towards the high binding energies was observed as the dopant surface density increases. The shift was related to the band bending that results from a high density of surface states.",

author = "N. Tabet",

year = "2001",

month = mar,

doi = "10.1016/S0368-2048(00)00385-6",

language = "English",

volume = "114-116",

pages = "415--420",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

issn = "0368-2048",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - XPS investigation of the equilibrium segregation of antimony at germanium surface

AU - Tabet, N.

PY - 2001/3

Y1 - 2001/3

N2 - X-ray Photoelectron Spectroscopy (XPS) has been used to investigate the antimony segregation at Ge surface. Heat treatments of various durations have been carried out under vacuum at T = 600 °C. Etching Ge surface with Argon ions prior to the heat treatment enhances drastically the segregation process. A high value of the antimony diffusion coefficient (D = 7×10-10 cm2/s) was obtained from the experimental data. A shift of the Ge core levels towards the high binding energies was observed as the dopant surface density increases. The shift was related to the band bending that results from a high density of surface states.

AB - X-ray Photoelectron Spectroscopy (XPS) has been used to investigate the antimony segregation at Ge surface. Heat treatments of various durations have been carried out under vacuum at T = 600 °C. Etching Ge surface with Argon ions prior to the heat treatment enhances drastically the segregation process. A high value of the antimony diffusion coefficient (D = 7×10-10 cm2/s) was obtained from the experimental data. A shift of the Ge core levels towards the high binding energies was observed as the dopant surface density increases. The shift was related to the band bending that results from a high density of surface states.

UR - http://www.scopus.com/inward/record.url?scp=0035277867&partnerID=8YFLogxK

U2 - 10.1016/S0368-2048(00)00385-6

DO - 10.1016/S0368-2048(00)00385-6

M3 - Conference article

AN - SCOPUS:0035277867

SN - 0368-2048

VL - 114-116

SP - 415

EP - 420

JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

ER -

XPS investigation of the equilibrium segregation of antimony at germanium surface

Abstract

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this