منابع مشابه
Characteristics of the intrinsic defects in unintentionally doped 4H-SiC after thermal annealing
Thermal annealing effects on the characteristics of intrinsic defects in unintentionally doped 4H–SiC were investigated. The 4H–SiC samples were prepared by Low-Pressure Chemical Vapor Deposition (LPCVD) technique. Results show that there is only one Electron Spin Resonance (ESR) peak and a broad, from green to yellow, photoluminescence (PL) band were detected. These results are attributed to t...
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We have studied the generation mechanisms of two different radiation-induced point defects, the Ge(1) and Ge(2) centers, in a germanosilicate fiber and in its original preform. The samples have been investigated before and after X-ray irradiation using the confocal microscopy luminescence and the electron paramagnetic resonance techniques. Our experimental results show the higher radiation sens...
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We present the first colloidal synthesis of Ge-doped ZnO nanocrystals, which are produced by a scalable method that uses only air and moisture stable precursors. The incorporation of tetravalent Ge ions within ZnO nanocrystals generates a surface plasmon resonance in the near-mid infrared, and induces a change in morphology, from isotropic spheroidal nanocrystals to rod-like, elongated structur...
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Thermoelectric materials may contribute in the near future as new alternative sources of sustainable energy. Unprecedented thermoelectric properties in p-type SnSe single crystals have been recently reported, accompanied by extremely low thermal conductivity in polycrystalline samples. In order to enhance thermoelectric efficiency through proper tuning of this material we report a full structur...
متن کامل-module defects in crystals
An analysis is presented of the new types of defects that can appear in crystalline structures where the positions of the atoms and the unit cell belong to the same {\bb Z}-module, i.e. are irrational projections of an N > 3-dimensional (N-D) lattice Λ as in the case of quasicrystals. Beyond coherent irrationally oriented twins already discussed in a previous paper [Quiquandon et al. (2016). Ac...
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ژورنال
عنوان ژورنال: Journal of Inorganic Materials
سال: 2016
ISSN: 1000-324X
DOI: 10.15541/jim20160129