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

49 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

Access to Document

10.1002/anie.201302494

Cite this

@article{3edcc8e969924e01b44e1ca2cc50bbdf,

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",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

number = "31",

}

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

UR - http://www.scopus.com/inward/record.url?scp=84880818370&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880818370&partnerID=8YFLogxK

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

Access to Document

Other files and links

Fingerprint

Cite this