نتایج جستجو برای: nanocrystallization
تعداد نتایج: 200 فیلتر نتایج به سال:
Herein, the grown-into-glass (GIG) CsPbBr3:Ln3+ (Ln = La, Lu) nanocrystals (NCs) are designed and fabricated using an in situ nanocrystallization method. It is shown that a substitution of Pb2+ sites with Ln3+ ions leads to blueshift emission position induced by increase bandgap CsPbBr3. Additionally, GIG-samples found feature excellent photoluminescent (PL) properties after being immersed resp...
Nanocrystals of several oligosilanes have been fabricated easily by using a reprecipitation method. The nanocrystals reveal an intense absorption band at the UVB region (280 to 320 nm) and a fluorescence band with large Stokes shift. These photophysical properties show that the nanocrystals exhibit an excitonic interaction of the H-aggregate type.
Abstract The deformation mechanisms that dictate the tribological performances of heat treated Ni55Ti45, Ni54Ti45Hf1 and Ni56Ti36Hf8 alloys are revealed through rolling contact fatigue (RCF) testing transmission electron microscopy (TEM) analyses. Analysis worn samples passed a 5×108 cycle RCF runout condition shows damage is primarily confined to bands propagate several hundred nanometers – mi...
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