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Research Article | Open Access

Shape Control of Doped Semiconductor Nanocrystals (d-Dots)

Ranjani Viswanatha1, David M. Battaglia2, Mark E. Curtis3,4, Tetsuya D. Mishima3,4, Matthew B. Johnson3,4, Xiaogang Peng1,3( )
Department of Chemistry & Biochemistry, University of ArkansasFayetteville AR 72701 USA
NN-Labs LLC Fayetteville AR 72703 USA
Joint MRSEC at the University of Oklahoma and the University of ArkansasFayetteville AR 72701 USA
Homer L. Dodge Department of Physics and Astronomy, University of OklahomaNorman , OK 73019 USA
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Abstract

Formation of Mn2+-doped ZnSe quantum dots (Mn: ZnSe d-dots) with both branched and nearly spherical shapes has been studied. Structure analysis indicates that the Mn2+ dopants were localized in the core of a branched nanocrystal. The growth of branched d-dots, rather than spherical ones, was achieved by simply varying the concentration of two organic additives, fatty acids, and fatty amines. The photoluminescence properties of the branched nanocrystals were explored and compared with those of the nearly spherical particles.

Keywords

Doped quantum dot (d-dot)shape controlphotoluminescence

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Nano Research
Volume 1 Issue 2,
February 2008
Pages 138-144
DOI: 10.1007/s12274-008-8016-5
Cite this article:
Viswanatha R, Battaglia DM, Curtis ME, et al. Shape Control of Doped Semiconductor Nanocrystals (d-Dots). Nano Research, 2008, 1(2): 138-144. https://doi.org/10.1007/s12274-008-8016-5

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Received: 12 May 2008
Revised: 05 June 2008
Accepted: 05 June 2008
Published: 31 July 2008
© Tsinghua Press and Springer-Verlag 2008
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