Cart
Letter
Spin-Polarizable Excitonic Luminescence in Colloidal Mn2+-Doped CdSe Quantum Dots
Full Text HTML
Hi-Res PDFPurchase the full-text
- PDF/HTML,
figures/images,
references and tables,
(where available)
Department of Chemistry, University of Washington.
, ‡Department of Physics, University of Notre Dame.
, §Department of Physics, Korea University.
Abstract
The photoluminescence of colloidal Mn2+-doped CdSe nanocrystals has been studied as a function of nanocrystal diameter. These nanocrystals are shown to be unique among colloidal doped semiconductor nanocrystals reported to date in that quantum confinement allows tuning of the CdSe bandgap energy across the Mn2+ excited-state energies. At small diameters, the nanocrystal photoluminescence is dominated by Mn2+ emission. At large diameters, CdSe excitonic photoluminescence dominates. The latter scenario has allowed spin-polarized excitonic photoluminescence to be observed in colloidal doped semiconductor nanocrystals for the first time.
Citing Articles
Citation data is made available by participants in CrossRef's Cited-by Linking service. For a more comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.
This article has been cited by 9 ACS Journal articles (5 most recent appear below).
Electrochemically Controlled Auger Quenching of Mn2+ Photoluminescence in Doped Semiconductor Nanocrystals
Michael A. White, Amanda L. Weaver, Rémi Beaulac, and Daniel R. GamelinACS Nano2011 5 (5), 4158-4168Electrochemically Controlled Auger Quenching of Mn2+ Photoluminescence in Doped Semiconductor Nanocrystals
Michael A. White, Amanda L. Weaver, Rémi Beaulac, and Daniel R. GamelinACS Nano2011 5 (5), 4158-4168Auger processes in colloidal semiconductor nanocrystals have been scrutinized extensively in recent years. Whether involving electron−exciton, hole−exciton, or exciton−exciton interactions, such Auger processes are generally fast and hence have been ...
Size-Controlled Aggregation of Cube-Shaped EuS Nanocrystals with Magneto-Optic Properties in Solution Phase
Atsushi Tanaka, Hironari Kamikubo, Mikio Kataoka, Yasuchika Hasegawa, and Tsuyoshi KawaiLangmuir2011 27 (1), 104-108Size-Controlled Aggregation of Cube-Shaped EuS Nanocrystals with Magneto-Optic Properties in Solution Phase
Atsushi Tanaka, Hironari Kamikubo, Mikio Kataoka, Yasuchika Hasegawa, and Tsuyoshi KawaiLangmuir2011 27 (1), 104-108Size-controlled formation of colloidal aggregates composed of cube-shaped EuS nanocrystals, EuS NCs, in solution phase are reported and their optical and magneto-optical properties are studied. The average size of the colloidal particles of the EuS NCs-...
Size-Dependent Tuning of Mn2+ d Emission in Mn2+-Doped CdS Nanocrystals: Bulk vs Surface
Angshuman Nag, Roby Cherian, Priya Mahadevan, Achanta Venu Gopal, Abhijit Hazarika, Akshatha Mohan, A. S. Vengurlekar, and D. D. SarmaThe Journal of Physical Chemistry C2010 114 (43), 18323-18329Size-Dependent Tuning of Mn2+ d Emission in Mn2+-Doped CdS Nanocrystals: Bulk vs Surface
Angshuman Nag, Roby Cherian, Priya Mahadevan, Achanta Venu Gopal, Abhijit Hazarika, Akshatha Mohan, A. S. Vengurlekar, and D. D. SarmaThe Journal of Physical Chemistry C2010 114 (43), 18323-18329We show that the characteristic Mn2+ d emission color from Mn2+-doped CdS nanocrystals can be tuned over as much as 40 nm, in contrast to what should be expected from such a nearly localized d−d transition. This is achieved surprisingly by a fine-tuning ...
Tunable Dual Emission in Doped Semiconductor Nanocrystals
Vladimir A. Vlaskin, Nils Janssen, Jos van Rijssel, Rémi Beaulac and Daniel R. GamelinNano Letters2010 10 (9), 3670-3674Tunable Dual Emission in Doped Semiconductor Nanocrystals
Vladimir A. Vlaskin, Nils Janssen, Jos van Rijssel, Rémi Beaulac and Daniel R. GamelinNano Letters2010 10 (9), 3670-3674Colloidal manganese-doped semiconductor nanocrystals have been developed that show pronounced intrinsic high-temperature dual emission. Photoexcitation of these nanocrystals gives rise to strongly temperature dependent luminescence involving two distinct ...
Self-Assembly and Enhanced Magnetic Properties of Three-Dimensional Superlattice Structures Composed of Cube-Shaped EuS Nanocrystals
Atsushi Tanaka, Hironari Kamikubo, Yoshihiro Doi, Yukio Hinatsu, Mikio Kataoka, Tsuyoshi Kawai and Yasuchika HasegawaChemistry of Materials2010 22 (5), 1776-1781Self-Assembly and Enhanced Magnetic Properties of Three-Dimensional Superlattice Structures Composed of Cube-Shaped EuS Nanocrystals
Atsushi Tanaka, Hironari Kamikubo, Yoshihiro Doi, Yukio Hinatsu, Mikio Kataoka, Tsuyoshi Kawai and Yasuchika HasegawaChemistry of Materials2010 22 (5), 1776-1781Superlattice structures (SLSs) assembled with cube-shaped EuS nanocrystals (NCs) and their remarkable magnetic properties are reported. The cube-shaped EuS NCs are prepared by the thermal reduction of single source precursor, tetra(diethyldithiocarbamate) ...
Tools
-
Add to Favorites
-
Download Citation
-
Email a Colleague -
Permalink
Order Reprints
Rights & Permissions
Citation Alerts
History
- Published In Issue April 09, 2008
- Article ASAPMarch 11, 2008
- Received: January 21, 2008
Revised: February 19, 2008
ACS
Network
Facebook
Tweet This
CiteULike
Newsvine
Digg This
Delicious
103 and are shown to arise from the ...
