Nanosegregation and neighbor-cation control of photoluminescence in carbidonitridosilicate phosphors

Wan Yu Huang; Fumitaka Yoshimura; Kyota Ueda; Yasuo Shimomura; Hwo Shuenn Sheu; Ting Shan Chan; Heather F. Greer; Wuzong Zhou; Shu Fen Hu; Ru Shi Liu; J. Paul Attfield

doi:10.1002/anie.201302494

Nanosegregation and neighbor-cation control of photoluminescence in carbidonitridosilicate phosphors

Wan Yu Huang
, Fumitaka Yoshimura
, Kyota Ueda
, Yasuo Shimomura
, Hwo Shuenn Sheu
, Ting Shan Chan
, Heather F. Greer
, Wuzong Zhou
, Shu Fen Hu
, Ru Shi Liu^*
, J. Paul Attfield

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

Blue, green, and yellow phosphors are obtained in the Sr _1-xY_0.98+xCe_0.02Si₄N _7-xC_x 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 Ce-N bonding. Green emission is observed from a cation-segregated nanostructure of SrYSi₄N₇ and Y₂Si ₄N₆C domains in x=0.2-0.6 samples.

Original language	English
Pages (from-to)	8102-8106
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	52
Issue number	31
DOIs	https://doi.org/10.1002/anie.201302494
Publication status	Published - 2013 Jul 29

Keywords

carbidonitridosilicate
phosphors
photoluminescence
thermal quenching

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1002/anie.201302494

Cite this

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title = "Nanosegregation and neighbor-cation control of photoluminescence in carbidonitridosilicate phosphors",

abstract = "Blue, green, and yellow phosphors are obtained in the Sr 1-xY0.98+xCe0.02Si4N 7-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 Ce-N bonding. Green emission is observed from a cation-segregated nanostructure of SrYSi4N7 and Y2Si 4N6C domains in x=0.2-0.6 samples.",

keywords = "carbidonitridosilicate, phosphors, photoluminescence, thermal quenching",

author = "Huang, \{Wan Yu\} and Fumitaka Yoshimura and Kyota Ueda and Yasuo Shimomura and Sheu, \{Hwo Shuenn\} and Chan, \{Ting Shan\} and Greer, \{Heather F.\} and Wuzong Zhou and Hu, \{Shu Fen\} and Liu, \{Ru Shi\} and Attfield, \{J. Paul\}",

year = "2013",

month = jul,

day = "29",

doi = "10.1002/anie.201302494",

language = "English",

volume = "52",

pages = "8102--8106",

journal = "Angewandte Chemie - International Edition",

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publisher = "John Wiley and Sons Ltd",

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}

TY - JOUR

T1 - Nanosegregation and neighbor-cation control of photoluminescence in carbidonitridosilicate phosphors

AU - Huang, Wan Yu

AU - Yoshimura, Fumitaka

AU - Ueda, Kyota

AU - Shimomura, Yasuo

AU - Sheu, Hwo Shuenn

AU - Chan, Ting Shan

AU - Greer, Heather F.

AU - Zhou, Wuzong

AU - Hu, Shu Fen

AU - Liu, Ru Shi

AU - Attfield, J. Paul

PY - 2013/7/29

Y1 - 2013/7/29

N2 - Blue, green, and yellow phosphors are obtained in the Sr 1-xY0.98+xCe0.02Si4N 7-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 Ce-N bonding. Green emission is observed from a cation-segregated nanostructure of SrYSi4N7 and Y2Si 4N6C domains in x=0.2-0.6 samples.

AB - Blue, green, and yellow phosphors are obtained in the Sr 1-xY0.98+xCe0.02Si4N 7-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 Ce-N bonding. Green emission is observed from a cation-segregated nanostructure of SrYSi4N7 and Y2Si 4N6C domains in x=0.2-0.6 samples.

KW - carbidonitridosilicate

KW - phosphors

KW - photoluminescence

KW - thermal quenching

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UR - https://www.scopus.com/pages/publications/84880818370#tab=citedBy

U2 - 10.1002/anie.201302494

DO - 10.1002/anie.201302494

M3 - Article

AN - SCOPUS:84880818370

SN - 1433-7851

VL - 52

SP - 8102

EP - 8106

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 31

ER -

Nanosegregation and neighbor-cation control of photoluminescence in carbidonitridosilicate phosphors

Abstract

Keywords

ASJC Scopus subject areas

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