Synthesis of colloidal PbSe nanoparticles using a microwave-assisted segmented flow reactor

被引：27

作者：

Hostetler, Eric B. ^{[1
]}

Kim, Ki-Joong ^{[1
]}

Oleksak, Richard P. ^{[1
]}

Fitzmorris, Robert C. ^{[1
]}

Peterson, Daniel A. ^{[2
]}

Chandran, Padmavathi ^{[2
]}

Chang, Chih-Hung ^{[1
]}

Paul, Brian K. ^{[2
]}

Schut, David M. ^{[3
]}

Herman, Gregory S. ^{[1
]}

机构：

[1] Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA

[2] Oregon State Univ, Sch Mech Ind & Mfg Engn, Corvallis, OR 97331 USA

[3] Univ Oregon, Voxtel Inc, Eugene, OR 97403 USA

来源：

MATERIALS LETTERS | 2014年 / 128卷

关键词：

PbSe; Nanoparticles; Colloidal processing; Microwave; Flow synthesis; EXTINCTION COEFFICIENT; LEAD SELENIDE; QUANTUM DOTS; NANOCRYSTALS;

D O I：

10.1016/j.matlet.2014.04.089

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Colloidal lead selenide nanoparticles (PbSe NPs) were synthesized using a microwave-assisted continuous flow reactor. Rapid heating of precursors was performed in the microwave reaction zone to initiate nucleation and was followed by an oil bath growth zone. In this study we have evaluated the effect of the nucleation temperature on the PbSe NP size distributions, crystallographic structure, particle shape, and particle composition. The PbSe NP size could be varied from 11.2 to 13.9 nm by adjusting the microwave nucleation temperature between 124 and 159 degrees C. It was found that nucleation of Pb rich species occurred in the microwave reaction zone, while PbSe NPs form in the growth zone. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：54 / 59

页数：6

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