【摘要】 设计并制备出CdSe-Au、PbSe-Au、FePt-Au、Cu2O-Au和FePt-CdS-Au等二元和三元异质纳米颗粒。基于异质纳米颗粒的制备方法,TEM和HRTEM的观测分析,提出了Au基多组元异质纳米颗粒的形成机理。CdSe-Au异质纳米颗粒的吸收光谱、荧光光谱和X射线光电子能谱价带谱的研究表明,多组元材料构筑的异质纳米颗粒,不仅集合了不同组元材料各自的本征性能,还可以耦合产生新的物理特性。更多还原

【Abstract】 The Au-based multi-component heterostructure nanocrystals CdSe-Au、PbSe-Au、FePt-Au、（Cu₂O）-Au和FePt-Cds-Au have been prepared.Based on the preparation method and the observations of TEM and HRTEM,a formation mechanism of the Au-Based multi-component heterostructure nanocrystals has been proposed.The absorption spectrum,the photoluminescence spectrum and the VB-XPS spectrum of CdSe-Au exhibit the new physical properties due to the coupling effect.更多还原