Synthesis of Mn-doped zinc blende CdSe nanocrystals

CdSe colloidal nanocrystals ( ∼ 3.7 nm ) with zinc blende structure were synthesized at a low temperature via an inverse micelle technique. They were successfully doped with ∼ 4 at. % Mn, which was examined using inductively coupled plasma atomic emission spectroscopy. In spite of larger particle si...

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Bibliographic Details
Published in:Applied physics letters 2007-04, Vol.90 (17), p.173111-173111-2
Main Authors: Kwak, Woo-Chul, Sung, Yun-Mo, Kim, Tae Geun, Chae, Won-Seok
Format: Article
Language:English
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Summary:CdSe colloidal nanocrystals ( ∼ 3.7 nm ) with zinc blende structure were synthesized at a low temperature via an inverse micelle technique. They were successfully doped with ∼ 4 at. % Mn, which was examined using inductively coupled plasma atomic emission spectroscopy. In spite of larger particle size ( ∼ 4.1 nm ) , the Mn-doped CdSe nanocrystals showed an apparent blueshift in the UV-visible spectroscopy light absorption peaks. Considering the nanoparticle size and the effective energy band gap, the increase in the bulk energy band gap was estimated in the Mn-doped CdSe nanocrystals, which provides an obvious evidence of true Mn doping in the CdSe lattices.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2731682