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

53 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

Access to Document

10.1016/j.matlet.2014.11.025

Cite this

@article{605d798a812149d88f7ebe60891420f8,

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",

month = feb,

day = "15",

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

language = "English",

volume = "141",

pages = "27--30",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this