Xu Shu, Kumar Sandeep, Nann Thomas
Freiburg Materials Research Centre, University of Freiburg, Germany.
J Am Chem Soc. 2006 Feb 1;128(4):1054-5. doi: 10.1021/ja057676k.
A rapid new method for preparation of monodisperse InP-nanocrystals was developed. A highly reactive indium precursor and tris(trimethylsilyl)phosphine (TMS)3P was reacted within a weakly coordinating solvent in the presence of a supporting protic agent. The yielded InP-nanocrystals had a very narrow size distribution without any size selection process. The precursor and ligand effects were considered as critical factors in control of nucleation and crystal growth process. Different ligands were introduced to study the reaction mechanism. The new method not only yielded the "best" InP-nanocrystals so far, but also includes the potential for preparation within a continuous flow reactor, because the utilized ester is liquid at room temperature.
开发了一种制备单分散磷化铟纳米晶体的快速新方法。一种高反应性铟前驱体与三（三甲基硅基）膦（TMS）₃P在弱配位溶剂中，于一种质子性辅助剂存在下发生反应。所生成的磷化铟纳米晶体尺寸分布非常窄，无需任何尺寸筛选过程。前驱体和配体效应被视为控制成核和晶体生长过程的关键因素。引入不同配体以研究反应机理。该新方法不仅生成了迄今为止“最佳”的磷化铟纳米晶体，还具备在连续流动反应器中制备的潜力，因为所使用的酯在室温下为液体。
