CuInSe(2) nanowire arrays were fabricated by electrodeposition from aqueous solutions of copper sulfate, indium sulfate, selenium dioxide, and citric acid, using anodic alumina membranes as templates. X-ray diffraction patterns showed that the wires were single phase (chalcopyrite structure) but polycrystalline, and a band gap of ∼1 eV was obtained from optical measurements. TEM and SEM confirmed that the grain size in nanowires annealed at 400 °C was in the range of 40 nm. The composition of the nanowires was uniform along the length of the wires and could be tuned by varying the electrodeposition potential. Analysis by ICP-MS showed that naowires grown at -700 mV were slightly Cu-rich, whereas those grown at -750 mV were slightly In-rich. Mott-Schottky plots were employed to determine the doping type and flat band potential, verifying that the Cu- and In-rich wires were p- and n-type, respectively. Single-wire electrical transport measurements were also performed and showed that both types of wires had resistivities in the range 10(-1)-10(-3) Ω·cm, consistent with carrier concentrations in the range 10(18)-10(20) cm(-3).
We study the spectral properties of the Galactic transient black hole
Candidate (BHC) GX 339-4 during its 2010-11 outburst with Two Component
(Keplerian and sub-Keplerian) Advective Flow (TCAF) model after its inclusion
In XSPEC as a local model. We also compare our TCAF model fitted results with
We describe a previously unknown
Manifestation of this interplay in MnSb2O6, a trigonal oxide with a chiral
Crystal structure. Unlike all other known cases, the MnSb2O6 magnetic structure
Is based on co-rotating cycloids rather than helices. The coupling to the
Structural chirality is provided by a...
We discuss the scattering of a light pulse by a single atom in free space
Using a purely semi-classical framework. The atom is treated as a linear
Elastic scatterer allowing to treat each spectral component of the incident
Pulse separately. For an increasing exponential pulse with a dipole radiation...
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