Coordination defects in bismuth-modified arsenic selenide glasses: High-resolution x-ray photoelectron spectroscopy measurements

Journal Article · Thu May 01 00:00:00 EDT 2008 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.77.172201· OSTI ID:21143535

Golovchak, Roman ^[1]; Shpotyuk, Oleh ^[2]; Kovalskiy, Andriy; Miller, Alfred C; Cech, Jiri; Jain, Himanshu ^[1]

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1. Department of Materials Science and Engineering, Lehigh University, 5 E. Packer Avenue, Bethlehem, Pennsylvania 18015-3195 (United States)
2. Lviv Scientific Research Institute of Materials of SRC 'Carat', 202 Stryjska Street, Lviv UA-79031 (Ukraine)

The possibility of coordination defects formation in Bi-modified chalcogenide glasses is examined by high-resolution x-ray photoelectron spectroscopy. The results provide evidence for the formation of positively charged fourfold coordinated defects on As and Bi sites in glasses with low Bi concentration. At high Bi concentration, mixed As{sub 2}Se{sub 3}-Bi{sub 2}Se{sub 3} nanocrystallites are formed in the investigated Se-rich As-Se glasses.

• OSTI ID: 21143535
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 77, Issue 17; Other Information: DOI: 10.1103/PhysRevB.77.172201; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ARSENIC SELENIDES
BISMUTH ADDITIONS
BISMUTH SELENIDES
DEFECTS
GLASS
NANOSTRUCTURES
RESOLUTION
X-RAY PHOTOELECTRON SPECTROSCOPY