Radial-Position-Controlled Doping in CdS/ZnS Core/Shell Nanocrystals
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- 1 September 2006
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 128 (38) , 12428-12429
- https://doi.org/10.1021/ja064818h
Abstract
In this paper, we report a new doping approach using a three-step synthesis to make high-quality Mn-doped CdS/ZnS core/shell nanocrystals. This approach allows precise control of the Mn radial position and doping level in the core/shell nanocrystals. On the basis of this synthetic advance, we have demonstrated the first example in which optical properties of Mn-doped nanocrystals strongly depend on Mn radial positions inside the nanocrystals. In addition, we have synthesized nanocrystals with a room-temperature Mn-emission quantum yield of 56%, which is nearly twice as high as that of the best Mn-doped nanocrystals reported previously. Nanocrystals with such a high-emission quantum yield are very important to applications such as nanocrystal-based biomedical diagnosis.Keywords
This publication has 18 references indexed in Scilit:
- Synthesis and Characterization of Highly Luminescent CdSe−Core CdS/Zn0.5Cd0.5S/ZnS Multishell NanocrystalsJournal of the American Chemical Society, 2005
- Isovalent Doping Strategy for Manganese Introduction into III-V Diluted Magnetic Semiconductor Nanoparticles: InP:MnChemistry of Materials, 2005
- Doped Semiconductor Nanocrystals: Synthesis, Characterization, Physical Properties, and ApplicationsPublished by Wiley ,2005
- The First Synthesis of Pb1-xMnxSe NanocrystalsJournal of the American Chemical Society, 2003
- The use of nanocrystals in biological detectionNature Biotechnology, 2003
- Synthesis and Characterization of Eu-Doped Cadmium Selenide NanocrystalsNano Letters, 2002
- Doping and Charging in Colloidal Semiconductor NanocrystalsMRS Bulletin, 2001
- Growth and Properties of Semiconductor Core/Shell Nanocrystals with InAs CoresJournal of the American Chemical Society, 2000
- Dependence of EPR in diluted magnetic semiconductors on the host latticePhysical Review B, 1985
- Analysis of the ESR spectrum of manganese(II) impurity centers in the layered compound cadmium phosphide sulfide (CdPS3)The Journal of Physical Chemistry, 1982