Synthesis of III-V Nanocrystals by Co-reduction Reactions

摘要

This paper describes a co-reduction colloidal method for the synthesis of In-containing III-V nanocrystals (NCs) by using pnictogen halides (such as PCl_3, AsCl_3, and SbCl_3) as the pnictogen-sources and superhydride (LiBH(C_2H_5)_3) as the reducing agent. The syntheses were generally carried out in octadecene in the presence of fatty acids at ～250 °C. The as-synthesized InP NCs were quasi-monodisperse in particle size and size distribution, whereas the InAs and InSb NCs showed relatively lower quality. The growth process of NCs was studied using InP as a model system.