Mechanistic Insights into the Formation of InP Quantum Dots

被引:155
作者
Allen, Peter M. [1 ]
Walker, Brian J. [1 ]
Bawendi, Moungi G. [1 ]
机构
[1] MIT, Dept Chem, Cambridge, MA 02139 USA
关键词
indium phosphide; reaction mechanisms; nanocrystals; nucleation; quantum dots; ONE-POT SYNTHESIS; HIGH-QUALITY INP; INAS NANOCRYSTALS; II-VI; SEMICONDUCTOR; KINETICS; GROWTH; SHELL;
D O I
10.1002/anie.200905632
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Figure Presented InP Kudos: The molecular mechanism of InP colloidal quantum dot (QD) syntheses was investigated by NMR spectroscopy. Unlike methods for monodisperse PbSe and CdSe, existing InP syntheses result in total depletion of molecular phosphorous species following nucleation, so QD growth is due exclusively to non-molecular ripening. Amines inhibit precursor depletion by solvation (see picture), contrary to previous reports. © 2010 Wlley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:760 / 762
页数:3
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