| 초록 |
Colloidal InP nanocrystals (NCs) are getting a huge interest as likely alternative to CdSe-based NCs, concerning their non-toxicity and tunable emission bandwidth. In the synthesis of InP nanocrystals, the most widely known phosphorus precursor is tris(trimethylsilyl)phosphine ((TMS)3P) which reacts with indium precursors to form In-P monomers. However, (TMS)3P is highly dangerous and expensive chemical which contains huge potential hazards in large-scale synthesis. Here, the InP NCs synthetic method using safer and cheaper precursor is introduced. The method is very similar with the original colloidal method except reacting InCl3-OLA as indium source with triphenyl phosphite to form In-P monomers. With using ZnCl2 as growth kinetics manager, resultant InP NCs shows 1s peak from blue-green to red region. While the noticeable photoluminescence (PL) was not observed, adequate shelling process would recover surface defects to exerts high quality as light emitter. |
