CJCU

Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (12): 2453.

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Influence of Monomer Molar Ratio on the Growth of PbSe Nanoparticles

LI Yan1, LIN Ao-Lei1,2*, LI Dong-Mei1   

  1. 1. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
    2. Institute of Advanced Technology, Jilin University, Changchun 130012, China
  • Received:2010-05-04 Revised:2010-09-15 Online:2010-12-10 Published:2010-12-06
  • Contact: LIN AoLei E-mail:linal@jlu.edu.cn
  • About author:林奥雷, 男, 博士, 副研究员, 主要从事高压物理和纳米材料方面的研究.
  • Supported by:

    National Natural Science Foundation of China

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Abstract: In order to study the influence of Pb to Se monomer molar ratio on the growth of PbSe QDs, we synthesized PbSe nanopatical with different mole ratio of Se to Pb monomer. It indicates that the more Se monomer existed in the initial stage, the faster the nucleation process occurred, but slow the growth of nanoparticles. One reason is Se monomer is more active than the Pb monomer. The other reason is the special PbSe nanoparticle theory model.

Key words: PbSe quantum dots, reaction speed, monomer molar ratio

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