5,682 research outputs found
A probabilistic model of the electron transport in films of PbSe nanocrystals arranged in a cubic lattice
The fabrication of nanocrystal (NC) films, starting from colloidal
dispersion, is a very attractive topic in condensed matter physics community.
NC films can be employed for transistors, light emitting diodes, laser, and
solar cells. For this reason the understanding of the film conductivity is of
major importance. In this paper we describe a probabilistic model that allow to
predict the conductivity of the NC films, in this case of a cubic lattice of
Lead Selenide NCs. The model is based on the hopping probability between NCs
show a comparison with experimental data reported in literature.Comment: 5 pages, 4 figure
Light-induced switching in pDTE - FICO 1D photonic structures
We propose the design of 1D photonic crystals and microcavities in which
fluorine-indium codoped cadmium oxide (FICO) nanocrystal based layers and
layers of diarylethene-based polyester (pDTE) are alternated or embedded in a
microcavity. The irradiation with UV light results in two different behaviours:
i) it dopes the FICO nanocrystals inducing a blue shift of their plasmonic
resonances; ii) it changes the real part of the refractive index of the
photochromic pDTE polymer. These two behaviours are combined in the proposed
photonic structures and can be useful for switchable filters and cavities for
light emission.Comment: 9 pages, 5 figure
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