Enhanced luminous efficiency of deep red emitting K2SiF6:Mn4+ phosphor dependent on KF ratio for warm-white LED

M. J. Lee; Y. H. Song; Y. L. Song; G. S. Han; H. S. Jung; D. H. Yoon

doi:10.1016/j.matlet.2014.11.025

Enhanced luminous efficiency of deep red emitting K₂SiF₆:Mn⁴⁺ phosphor dependent on KF ratio for warm-white LED

M. J. Lee
, Y. H. Song
, Y. L. Song
, G. S. Han
, H. S. Jung
, D. H. Yoon

Department of Advanced Materials Science and Engineering

Sungkyunkwan University

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

54 Scopus citations

Abstract

We demonstrate a simple method of K₂SiF₆:Mn⁴⁺ red phosphor and discuss its promising application in warm-white lighting emitting diodes. The K₂SiF₆:Mn⁴⁺ was synthesized from SiO₂ powders through redox reaction in HF/KMnO₄ solution. To further increase emission efficiency, KF was introduced in the solution. An intense absorption band in blue and a bright emission in red indicated the phosphor K₂SiF₆:Mn⁴⁺. This phosphor and the synthesis method are expected to be promising candidates for application in white LEDs.

Original language	English
Pages (from-to)	27-30
Number of pages	4
Journal	Materials Letters
Volume	141
DOIs	https://doi.org/10.1016/j.matlet.2014.11.025
State	Published - 15 Feb 2015

Keywords

Deep-red phosphor
KSiF:Mn
LED
Warm-white

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10.1016/j.matlet.2014.11.025

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title = "Enhanced luminous efficiency of deep red emitting K2SiF6:Mn4+ phosphor dependent on KF ratio for warm-white LED",

abstract = "We demonstrate a simple method of K2SiF6:Mn4+ red phosphor and discuss its promising application in warm-white lighting emitting diodes. The K2SiF6:Mn4+ was synthesized from SiO2 powders through redox reaction in HF/KMnO4 solution. To further increase emission efficiency, KF was introduced in the solution. An intense absorption band in blue and a bright emission in red indicated the phosphor K2SiF6:Mn4+. This phosphor and the synthesis method are expected to be promising candidates for application in white LEDs.",

keywords = "Deep-red phosphor, KSiF:Mn, LED, Warm-white",

author = "Lee, \{M. J.\} and Song, \{Y. H.\} and Song, \{Y. L.\} and Han, \{G. S.\} and Jung, \{H. S.\} and Yoon, \{D. H.\}",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2015",

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day = "15",

doi = "10.1016/j.matlet.2014.11.025",

language = "English",

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journal = "Materials Letters",

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TY - JOUR

T1 - Enhanced luminous efficiency of deep red emitting K2SiF6:Mn4+ phosphor dependent on KF ratio for warm-white LED

AU - Lee, M. J.

AU - Song, Y. H.

AU - Song, Y. L.

AU - Han, G. S.

AU - Jung, H. S.

AU - Yoon, D. H.

PY - 2015/2/15

Y1 - 2015/2/15

N2 - We demonstrate a simple method of K2SiF6:Mn4+ red phosphor and discuss its promising application in warm-white lighting emitting diodes. The K2SiF6:Mn4+ was synthesized from SiO2 powders through redox reaction in HF/KMnO4 solution. To further increase emission efficiency, KF was introduced in the solution. An intense absorption band in blue and a bright emission in red indicated the phosphor K2SiF6:Mn4+. This phosphor and the synthesis method are expected to be promising candidates for application in white LEDs.

AB - We demonstrate a simple method of K2SiF6:Mn4+ red phosphor and discuss its promising application in warm-white lighting emitting diodes. The K2SiF6:Mn4+ was synthesized from SiO2 powders through redox reaction in HF/KMnO4 solution. To further increase emission efficiency, KF was introduced in the solution. An intense absorption band in blue and a bright emission in red indicated the phosphor K2SiF6:Mn4+. This phosphor and the synthesis method are expected to be promising candidates for application in white LEDs.

KW - Deep-red phosphor

KW - KSiF:Mn

KW - LED

KW - Warm-white

UR - https://www.scopus.com/pages/publications/84912567746

U2 - 10.1016/j.matlet.2014.11.025

DO - 10.1016/j.matlet.2014.11.025

M3 - Article

AN - SCOPUS:84912567746

SN - 0167-577X

VL - 141

SP - 27

EP - 30

JO - Materials Letters

JF - Materials Letters

ER -

Enhanced luminous efficiency of deep red emitting K₂SiF₆:Mn⁴⁺ phosphor dependent on KF ratio for warm-white LED

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Keywords

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