Ilia V. Bezel

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Size-controlled spectral tunability and chemical flexibility make semiconductor nanocrystals (NCs) attractive as nanoscale building blocks for color-selectable optical-gain media. The technological potential of NCs as lasing materials is, however, significantly diminished by highly efficient nonradiative Auger recombination of multiexcitons leading to(More)
Because of size-controlled emission color, good photostability, and chemical flexibility, colloidal semiconductor nanocrystals (NCs) are promising building blocks for new types of colorselectable optical gain media [1]. One factor limiting optical gain performance ofNCs is highly efficient multiexciton Auger recombination that leads to short picosecond(More)
Ultrafast two-photon photoemission has been used to study electron solvation at two-dimensional metal/polar-adsorbate interfaces. The molecular motion that causes the excess electron solvation is manifested as a dynamic shift in the electronic energy. Although the initially excited electron is delocalized in the plane of the interface, interactions with the(More)
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