Variability in chemical vapor deposited zinc sulfide: assessment of legacy and international CVD ZnS materials

John McCloy; Ralph Korenstein

doi:10.1117/12.819559

27 April 2009 Variability in chemical vapor deposited zinc sulfide: assessment of legacy and international CVD ZnS materials

John McCloy, Ralph Korenstein

Author Affiliations +

Proceedings Volume 7302, Window and Dome Technologies and Materials XI; 73020M (2009) https://doi.org/10.1117/12.819559
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

Samples of CVD ZnS from the United States, Germany, Israel, and China were evaluated using x-ray diffraction, transmission and Raman spectroscopy, and biaxial flexure testing. Visible and near-infrared scattering, 6 μm absorption, and ultraviolet cut-on edge varied substantially in tested materials. Transmission cut-on (ultraviolet edge) blue-shifts with annealing and correlates with visible color but not the 6 μm absorption. Raman scattering for CVD ZnS, presented here for the first time, was similar for all ZnS tested. Crystallographic hexagonality and texture was determined and correlated qualitatively with optical scattering. All CVD ZnS tested with biaxial flexure exhibit similar fracture strength values and Weibull moduli. This survey suggests that despite over 30 years of production as an infrared window, the optical properties of CVD ZnS and their variability still defy easy explanation.

Citation Download Citation

John McCloy and Ralph Korenstein "Variability in chemical vapor deposited zinc sulfide: assessment of legacy and international CVD ZnS materials", Proc. SPIE 7302, Window and Dome Technologies and Materials XI, 73020M (27 April 2009); https://doi.org/10.1117/12.819559

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