Role of S/Se ratio in chemical bonding of As-S-Se glasses investigated by Raman, x-ray photoelectron, and extended x-ray absorption fine structure spectroscopies

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2009815· OSTI ID:20714080

Wenyan, Li; Seal, Sudipta; Rivero, Clara; Lopez, Cedric; Richardson, Kathleen; Pope, April; Schulte, Alfons; Myneni, Satish; Jain, Himanshu; Antoine, Keisha; Miller, Alfred C ^[1]

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1. Advanced Materials Processing and Analysis Center and Mechanical, Materials and Aerospace Engineering Department, University of Central Florida, Orlando, Florida 32816 (United States)

Chalcogenide glasses have attracted considerable attention and found various applications due to their infrared transparency and other optical properties. The As-S-Se chalcogenide glass, with its large glass-formation domain and favorable nonlinear property, is a promising candidate system for tailoring important optical properties through modification of glass composition. In this context, a systematic study on ternary As-S-Se glass, chalcogen-rich versus well-studied stochiometric compositions, has been carried out using three different techniques: Raman spectroscopy, x-ray photoelectron spectroscopy, and extended x-ray absorption fine structure spectroscopy. These complementary techniques lead to a consistent understanding of the role of S/Se ratio in chalcogen-rich As-S-Se glasses, as compared to stochiometric composition, and to provide insight into the structural units (such as the mixed pyramidal units) and evidence for the existence of homopolar bonds (such as Se-Se, S-S, and Se-S), which are the possible structural origin of the high nonlinearity in these glasses.

• OSTI ID: 20714080
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 5 Vol. 98; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTROSCOPY
ARSENIC SELENIDES
ARSENIC SULFIDES
CHEMICAL BONDS
FINE STRUCTURE
GLASS
NONLINEAR OPTICS
OPACITY
RAMAN SPECTRA
RAMAN SPECTROSCOPY
STOICHIOMETRY
X-RAY PHOTOELECTRON SPECTROSCOPY
X-RAY SPECTROSCOPY