Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"weak confinement"”.
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Development of mid-infrared light emitting diodes to replace incandescent airfield lighting
… limited by Shockley-Read-Hall recombination and weak confinement of carriers within the InSb regions. The inclusion of AlGaSb barriers improved room temperature operation with output power increasing from 2 uW to 42 uW.In addition, increased confinement also resulted in a decrease in peak …
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The Influence of Cellular Structure on the Dynamics of Detonations with Constant Mass Divergence
… of narrow tubes, porous-walled tubes and weak confinement. However, precise quantification of the loss mechanism in these frameworks has been associated with some difficulties. Complex flow in the boundary layers, inherent in thin tubes, or attenuation of the transverse waves in the …
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Electronic excited states in quasi- one- dimensional organic solids with strong coupling of Frenkel and charge-transfer excitons
… the idealization of the crystals and clusters as weakly interacting stacks with leading effects taking place within the columnar sub-structures. Thus, the concept of the small radius exciton theory in linear molecular chains was adopted to examine the excitonic states. The excited states are …
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Single molecule DNA dynamics in micro- and nano-fluidic devices
… seek the possibility of utilizing slit-like nanoconfinement to aid DNA stretching. Although extensive previous studies have demonstrated that geometric confinement of DNA can substantially alter the conformation and dynamics of these molecules at equilibrium, no direct studies of this …
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Size Dependence of the Electrical Characteristics of Silicon Nanoparticles
We studied the electronic properties of silicon nanoparticles with sizes rang- ing from 2.9 to 1 nm in diameter. Using a scanning tunneling microscope we studied the electronic structure of the particles. Resonant tunneling through hole states was observed when the samples were excited with light. …