On-line analysis of CdSe nanoparticle formation in a continuous flow chip-based microreactor

被引：117

作者：

Krishnadasan, S ^{[1
]}

Tovilla, J ^{[1
]}

Vilar, R ^{[1
]}

deMello, AJ ^{[1
]}

deMello, JC ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AY, England

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2004年 / 14卷 / 17期

关键词：

D O I：

10.1039/b401559b

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：

The online analysis of cadmium selenide nanoparticle formation in continuous-flow microfluidic reactors is described. The as-produced particles exhibit sharp excitonic absorption and emission peaks ( similar to30 - 40 nm) with relatively high quantum efficiencies (similar to10%). The mean size and dispersity of the particles, determined using on-line fluorescence detection, may be controlled by varying the reaction temperature and/or the flow rate. The microfluidic approach provides considerable control over nucleation/growth processes and is a promising strategy for the direct production of near-monodisperse nanoparticles without recourse to further size selection.

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页码：2655 / 2660

页数：6

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