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缺陷工程用于纳米晶二二化的热传输特性

Soroush Sabbaghi1, Vahid Bazargan1, Ehsan Hosseinian1

  • 1Department of Mechanical Engineering, University of Tehran, Tehran, Iran. ehosseinian@ut.ac.ir.

Nanoscale
|July 18, 2023
PubMed
概括

像空隙和粒度边界这样的缺陷显著降低了二化 (MoSe2) 的导热率. 这项研究量化了这些影响,对于设计先进的半导体设备至关重要.

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Imperfections in Crystal Structure: Stoichiometric Point Defects01:26

Imperfections in Crystal Structure: Stoichiometric Point Defects

Schottky defects arise when some lattice points in a crystal, such as those in NaCl, remain unoccupied, creating lattice vacancies without disturbing the overall electrical neutrality of the crystal. This defect is common in ionic crystals where the positive and negative ions are similar in size, as seen in sodium chloride and cesium chloride. The presence of Schottky defects enables the crystal to conduct electricity to a small extent through an ionic mechanism. Electric fields cause nearby...