The quantum calculations based on density functional theory(DFT)have been carried out to investigate the relationship be......

针对硫化铅(PbS)特殊的三阶非线性光学特性,本文在水溶液里合成了PbS纳米粒子。紫外-可见光谱显示，由于使用了封端剂，合成的样品更加......

　　In recent years,chiral crystalline open-framework materials are attracting great interests,not only owing to their i......