Abstract:Grain orientation is known to yield high thermal conductivity oriented yttrium silicon oxynitride (Y2O3–Si3N4). However, the anisotropic thermal conductivity of oriented Y2O3–Si3N4 in the stacking direction falls below that of nonoriented Y2O3–Si3N4 and Si3N4 at temperatures above 280 K and 630 K, respectively. Hence, it is unclear will grain orientation actually lead to better heat diffusions from the InGaAs/AlAsSb ultrafast all-optical cross-phase modulators or any other semiconductor devices to the oriented… Show more
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