Nanosegregation and Neighbor-Cation Control of Photoluminescence in Carbidonitridosilicate Phosphors†
Wan-Yu Huang
Department of Chemistry, National Taiwan University, Taipei 106 (Taiwan)
Search for more papers by this authorFumitaka Yoshimura
Mitsubishi Chemical Group, Science and Technology Research Center, Inc. Yokohama, Kanagawa 227-8502 (Japan)
Search for more papers by this authorDr. Kyota Ueda
Mitsubishi Chemical Group, Science and Technology Research Center, Inc. Yokohama, Kanagawa 227-8502 (Japan)
Search for more papers by this authorDr. Yasuo Shimomura
Mitsubishi Chemical Group, Science and Technology Research Center, Inc. Yokohama, Kanagawa 227-8502 (Japan)
Search for more papers by this authorDr. Hwo-Shuenn Sheu
National Synchrotron Radiation Research Center, Hsinchu 300 (Taiwan)
Search for more papers by this authorDr. Ting-Shan Chan
National Synchrotron Radiation Research Center, Hsinchu 300 (Taiwan)
Search for more papers by this authorHeather F. Greer
School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST (UK)
Search for more papers by this authorProf. Dr. Wuzong Zhou
School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST (UK)
Search for more papers by this authorProf. Dr. Shu-Fen Hu
Department of Physics, National Taiwan Normal University, Taipei 116 (Taiwan)
Search for more papers by this authorCorresponding Author
Prof. Dr. Ru-Shi Liu
Department of Chemistry, National Taiwan University, Taipei 106 (Taiwan)
Ru-Shi Liu, Department of Chemistry, National Taiwan University, Taipei 106 (Taiwan)
J. Paul Attfield, Centre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorCorresponding Author
Prof. Dr. J. Paul Attfield
Centre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JZ (UK)
Ru-Shi Liu, Department of Chemistry, National Taiwan University, Taipei 106 (Taiwan)
J. Paul Attfield, Centre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorWan-Yu Huang
Department of Chemistry, National Taiwan University, Taipei 106 (Taiwan)
Search for more papers by this authorFumitaka Yoshimura
Mitsubishi Chemical Group, Science and Technology Research Center, Inc. Yokohama, Kanagawa 227-8502 (Japan)
Search for more papers by this authorDr. Kyota Ueda
Mitsubishi Chemical Group, Science and Technology Research Center, Inc. Yokohama, Kanagawa 227-8502 (Japan)
Search for more papers by this authorDr. Yasuo Shimomura
Mitsubishi Chemical Group, Science and Technology Research Center, Inc. Yokohama, Kanagawa 227-8502 (Japan)
Search for more papers by this authorDr. Hwo-Shuenn Sheu
National Synchrotron Radiation Research Center, Hsinchu 300 (Taiwan)
Search for more papers by this authorDr. Ting-Shan Chan
National Synchrotron Radiation Research Center, Hsinchu 300 (Taiwan)
Search for more papers by this authorHeather F. Greer
School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST (UK)
Search for more papers by this authorProf. Dr. Wuzong Zhou
School of Chemistry, University of St Andrews, St Andrews, Fife KY16 9ST (UK)
Search for more papers by this authorProf. Dr. Shu-Fen Hu
Department of Physics, National Taiwan Normal University, Taipei 116 (Taiwan)
Search for more papers by this authorCorresponding Author
Prof. Dr. Ru-Shi Liu
Department of Chemistry, National Taiwan University, Taipei 106 (Taiwan)
Ru-Shi Liu, Department of Chemistry, National Taiwan University, Taipei 106 (Taiwan)
J. Paul Attfield, Centre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorCorresponding Author
Prof. Dr. J. Paul Attfield
Centre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JZ (UK)
Ru-Shi Liu, Department of Chemistry, National Taiwan University, Taipei 106 (Taiwan)
J. Paul Attfield, Centre for Science at Extreme Conditions and School of Chemistry, University of Edinburgh, King's Buildings, Mayfield Road, Edinburgh EH9 3JZ (UK)
Search for more papers by this authorThis work was supported by EPSRC, the Leverhulme Trust, and the Royal Society U.K., and the National Science Council of the Republic of China, Taiwan (Contract Nos. NSC 101-2113M-002-014-MY3 and NSC 101-2923M-007-003) and the Mitsubishi Chemical Group, Science and Technology Research Center, Inc. We are grateful to Chia-Han Chen for assistance in fitting data and preparing figures, and Tsung-Han Lin for providing an ultrafast personal computer in this work.
Graphical Abstract
Blue, green, and yellow phosphors are obtained in the Sr1−xY0.98+xCe0.02Si4N7−xCx system (x=0→1). Decreases in thermal quenching barrier height with x result from a dominant neighboring-cation effect, through which the replacement of Sr2+ by Y3+ reduces the covalency of CeN bonding. Green emission is observed from a cation-segregated nanostructure of SrYSi4N7 and Y2Si4N6C domains in x=0.2–0.6 samples.
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