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White light generation under violet-blue excitation from tunable green-to-red emitting Ca2MgSi2O7:Eu,Mn through energy transfer

Appl. Phys. Lett. 90, 161901 (2007); doi:10.1063/1.2722670

Published 16 April 2007

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Chun-Kuei Chang and Teng-Ming Chen
Phosphors Research Laboratory, Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan
Yellowish green-to-orange red emission can be generated by energy transfer from Eu2+ to Mn2+ in the Ca2MgSi2O7 host matrix. Eu2+-doped Ca2MgSi2O7 shows a broad green emission band centering at 528  nm and Mn2+-doped Ca2MgSi2O7 exhibits a red emission at around 602  nm. The authors have demonstrated that the mechanism of energy transfer from Eu2+ to Mn2+ in Ca2MgSi2O7:Eu,Mn phosphor is a resonant type via a dipole-quadrupole mechanism. They have also shown that the white light with varied hue, depending on contents of Mn2+, is generated by combination of predesigned emission wavelength-tunable Ca2MgSi2O7:Eu,Mn phosphors and violet-blue light source. ©2007 American Institute of Physics
History: Received 19 December 2006; accepted 14 March 2007; published 16 April 2007
Permalink: http://link.aip.org/link/?APPLAB/90/161901/1
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KEYWORDS and PACS

Keywords
PACS
  • 42.70.Nq
    Other nonlinear optical materials; photorefractive and semiconductor materials
  • 42.65.-k
    Nonlinear optics
  • YEAR: 2007

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (12)
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