硅量子点的介电受限特性

Dielectric Confinement Property of Silicon Quantum Dots

在有效质量近似的条件下 ,研究弱束缚类量子点的介电常数与其半径的关系 .通过室温下测得的硅量子点的光荧光光谱 ,计算硅量子点的介电常数 ,证实硅量子点介电常数的尺度效应 .

Under the condition of effectivemass approximation,the authors studied the relation between dielectric constant of loosely bounded quantum dots and their radii;and calculated the dielectric constant of silicon quantum dots by way of photoluminescent spectra of silicon quantum dots determined at room temperature ;and confirmed the dimensional effect of the dielectric constant of silicon quantum dots.