Results 281 to 290 of about 389,998 (315)

Donor impurity band exchange in dilute ferromagnetic oxides

Nature Materials, 2005
J. Coey, M. Venkatesan, C. Fitzgerald
semanticscholar   +3 more sources

Impurity Conduction at Low Concentrations

, 1960
The conductivity of an $n$-type semiconductor has been calculated in the region of low-temperature $T$ and low impurity concentration ${n}_{D}$. The model is that of phonon-induced electron hopping from donor site to donor site where a fraction $K$ of ...
A. J. Miller, E. Abrahams
semanticscholar   +1 more source

The origin of deep-level impurity transitions in hexagonal boron nitride

, 2015
Deep ultraviolet photoluminescence (PL) emission spectroscopy has been employed to investigate the origin of the widely observed deep level impurity related donor-acceptor pair (DAP) transition with an emission peak near 4.1 eV in hexagonal boron nitride
X. Du, Jing Li, Jingyu Lin, Hongxing Jiang   +3 more
semanticscholar   +1 more source

Origin of p -type doping difficulty in ZnO: The impurity perspective

, 2002
We investigate the p-type doping difficulty in ZnO by first-principles total-energy calculations. The dopants being considered are group-I elements Li, Na, and K and group-V elements N, P, and As.
C. Park, Shengbai Zhang, Suhuai Wei
semanticscholar   +1 more source

Solid solubilities of impurity elements in germanium and silicon

, 1960
The available data on solid solubilities of impurity elements in germanium and silicon are summarized in the form of solidus or solvus curves. New solubility data are presented for the lead-germanium, zinc-germanium, indium-germanium, antimony-silicon ...
F. Trumbore
semanticscholar   +1 more source

Impurity doping: a novel strategy for controllable synthesis of functional lanthanide nanomaterials.

Nanoscale, 2013
Many technological nanomaterials are intentionally 'doped' by introducing appropriate amounts of foreign elements into hosts to impart electronic, magnetic and optical properties.
Daqin Chen, Yuansheng Wang
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Optical properties and diamagnetic susceptibility of a hexagonal quantum dot: impurity effect

Optical and quantum electronics, 2021
H. R. Rastegar Sedehi, R. Khordad, H. Bahramiyan   +2 more
semanticscholar   +1 more source

Linear and nonlinear optical properties of ZnO/ZnS and ZnS/ZnO core shell quantum dots: Effects of shell thickness, impurity, and dielectric environment

, 2013
In the present work, we investigated theoretically the linear, nonlinear, and total absorption coefficients and refractive index changes associated with intersubband transitions in ZnO/ZnS core shell quantum dot (CSQD) and ZnS/ZnO inverted CSQD (ICSQD ...
Z. Zeng, C. Garoufalis, A. Terzis, S. Baskoutas   +3 more
semanticscholar   +1 more source

Diamond Growth and Morphology under the Influence of Impurity Adsorption

, 2013
In this paper, we report on the diamond growth and morphology evolution of diamond crystals of cube-octahedron series under the effect of impurity adsorption.
Yuri N. Palyanov, A. Khokhryakov, Y. Borzdov, I. Kupriyanov   +3 more
semanticscholar   +1 more source

An alternative of CdSe nanocrystal emitters: pure and tunable impurity emissions in ZnSe nanocrystals.

Journal of the American Chemical Society, 2005
The concept, decoupling doping from nucleation and/or growth, allows us to dope nearly all nanocrystals in a given sample which is indicated by complete quenching of the host emission and bright emission from the dopants at characteristic wavelengths ...
N. Pradhan, D. Goorskey, Jason Thessing, Xiaogang Peng   +3 more
semanticscholar   +1 more source