Tunable White-Light-Emitting Mn-Doped ZnSe Nanocrystals

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10.1021-am405978a.pdf (1.14 MB)

Date

2014-02-06

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Source Title

ACS Applied Materials and Interfaces

Print ISSN

1944-8244

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Publisher

American Chemical Society

Volume

6

Issue

5

Pages

3654 - 3660

Language

English

Type

Article

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Abstract

We report white-light-emitting Mn-doped ZnSe nanocrystals (NCs) that are synthesized using modified nucleation doping strategy. Tailoring three distinct emission mechanisms in these NCs, which are MnSe-related blue emission (410 and 435 nm), Zn-related defect state green emission (520 nm), and Mn-dopant related orange emission (580 nm), allowed us to achieve excitation wavelength tailorable white-light generation as studied by steady state and time-resolved fluorescence spectroscopy. These NCs will be promising as single component white-light engines for solid-state lighting.

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Keywords

Doped Nanocrystals , White-light Emission , Transmission Electron Microscopy , Time-resolved Photoluminescence , Color Properties

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http://hdl.handle.net/11693/13138

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http://dx.doi.org/10.1021/am405978a

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Department of Physics
Department of Electrical and Electronics Engineering
Institute of Materials Science and Nanotechnology (UNAM)