초록 |
Considerable research has been carried out on colloidal semiconductor nanocrystals(NCs) on account of their size dependent electronic and optical properties, which are the key issues in many applications, such as biomedical fluorophores, LEDs and photovoltaic devices.Their opto-electronic properties can be engineered by controlled size, composition and band gap offsets of the core/shell QDs. Core-shell QDs have been classified into three categories, type-I, type-II and reverse type-I according to their band alignments. We report development of cadmium free reverse type-I QDs of ZnSe/InP/ZnS core/shell/shell. |