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Investigation on the Large-Scale Synthesis of PbSe Nanocrystals

Authors :
Jin Zhong Niu
Hao Shan Hao
Hai Dong Li
Yong Guang Cheng
Gui Min Tian
Source :
Advanced Materials Research. :310-313
Publication Year :
2012
Publisher :
Trans Tech Publications, Ltd., 2012.

Abstract

Large-scale synthesis of high quality PbSe nanocrystals was conducted with the one-pot method. By this “greener” synthesis route, the use of traditional dangerous pyrophoric trioctylphosphine (TOP) and tributylphosphine (TBP) reagents was avoided. The crystal size and shape were controlled by the reaction time, reaction temperature, and the use of different combinations of surfactants. X-ray diffraction (XRD) and transition electron microscopy (TEM) were used to characterize as-synthesized nanocrystals and demonstrated the rock salt cubic structures and narrow size distributions. More than 3 g of high quality PbSe nanocrystals were synthesized in one reaction by this large-scale one-pot method. The uniform size of as-synthesized nanocrystals promoted the self-assembly of PbSe nanocrystals into large-area ordered superstructures.

Details

ISSN :
16628985
Database :
OpenAIRE
Journal :
Advanced Materials Research
Accession number :
edsair.doi...........bc4aae6fe74adcf555d8588019293293
Full Text :
https://doi.org/10.4028/www.scientific.net/amr.535-537.310