Lattice contraction in free-standing CdSe nanocrystals
Authors:
- 9 September 2002
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 81 (11) , 2076-2078
Abstract
Colloidal CdSe nanocrystals (NCs) with high photoluminescent quantum yield are fabricated by a method adopting a large initial Se:Cd ratio of the precursors in the solution. X-ray diffraction and Raman measurements confirm that there exists lattice contraction in the free-standing wurtzite CdSe NCs. The lattice contraction indicates the occurrence of surface optimization/reconstruction during the growth, which results in the high quantum yield of the obtained CdSe NCs.Keywords
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