Mechanistic Insight and Optimization of InP Nanocrystals Synthesized with Aminophosphines

被引：110

作者：

Buffard, Aude ^{[1
]}

Dreyfuss, Sebastien ^{[2
]}

Nadal, Brice ^{[1
]}

Heuclin, Hadrien ^{[1
]}

Xu, Xiangzhen ^{[1
]}

Patriarche, Gilles ^{[3
]}

Mezailles, Nicolas ^{[2
]}

Dubertret, Benoit ^{[1
]}

机构：

[1] Sorbonne Univ, Univ Paris 06, Lab Phys & Etud Mat, CNRS,ESPCI Paris,PSL Res Univ, F-75005 Paris, France

[2] Univ Toulouse 3, CNRS, Lab Heterochim Fondamentale & Appl, 118 Route Narbonne, F-31062 Toulouse, France

[3] Univ Paris Saclay, CNRS, Lab Photon & Nanostruct, Route Nozay, F-91460 Marcoussis, France

来源：

CHEMISTRY OF MATERIALS | 2016年 / 28卷 / 16期

关键词：

COLLOIDAL QUANTUM DOTS; HIGH-QUALITY INP; PRECURSOR CONVERSION; CRYSTAL-STRUCTURE; PHOSPHIDE; SIZE; COMPLEXES; SURFACE; NUCLEATION; CHEMISTRY;

D O I：

10.1021/acs.chemmater.6b02456

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We study the synthesis of indium phosphide quantum dots using InCl3, tris(dimethylamino)phosphine (1)(NMe2)(3)), and oleylamine. We optimized the reaction conditions to reach high chemical yield (similar to 70%) and size control of the quantum dots with absorption maxima over all the -visible range. Kinetic studies of the formation of the quantum dots show that, under certain conditions, the growth of nanoparticles seems to approach a LaMer type growth. We have used P-31 NMR, mass spectroscopy, and DFT calculations to decipher the reaction mechanisms of InP formation at the molecular level. The mechanistic investigation is in good agreement with the conclusions drawn from the optimization of the synthetic conditions.

引用

页码：5925 / 5934

页数：10

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