A single red InGaN-based light-emitting diode with a europium (III) ternary complex as mono-phosphor

Nengjun Xiang; Yong Xu; Zhengliang Wang; Xiaoxiao Wang; Louis M. Leung; Jing Wang; Qiang Su; Menglian Gong

doi:10.1016/j.saa.2007.06.015

A single red InGaN-based light-emitting diode with a europium (III) ternary complex as mono-phosphor

Nengjun Xiang^*
, Yong Xu
, Zhengliang Wang
, Xiaoxiao Wang
, Louis M. Leung
, Jing Wang
, Qiang Su
, Menglian Gong

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

15 Citations (Scopus)

Abstract

A novel europium (III) ternary complex, Eu(TPBDTFA)₃Phen, was designed and synthesized. Photoluminescence measurements show that the energy absorbed by the organic ligands was efficiently transferred to the central Eu³⁺ ions, and the complex exhibits strongly red emission due to the ⁵D₀-⁷F_j transitions of Eu³⁺ ions with appropriate CIE (Commission Internationale de l'Eclairage, International Commission on Illumination) chromaticity coordinates (x = 0.66, y = 0.33) under 310-420 nm light excitation. The luminescence quantum yield for the Eu³⁺ complex is 0.18. Thermogravimetric analysis (TGA) confirms a high thermal stability of the complex with a decomposition temperature of 341 °C. All the characteristics indicate that the Eu³⁺ complex is a highly efficient red phosphor suitable to be excited by near UV light. An intense red-emitting LED was fabricated by combining the mono-phosphor Eu(TPBDTFA)₃Phen with a ∼395 nm emitting InGaN chip.

Original language	English
Pages (from-to)	1150-1153
Number of pages	4
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	69
Issue number	4
DOIs	https://doi.org/10.1016/j.saa.2007.06.015
Publication status	Published - Apr 2008

User-Defined Keywords

Europium complex
InGaN LED
Luminescence
Phosphors

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10.1016/j.saa.2007.06.015

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@article{15e63539e9a64af4bc128a34dd9cf05f,

title = "A single red InGaN-based light-emitting diode with a europium (III) ternary complex as mono-phosphor",

abstract = "A novel europium (III) ternary complex, Eu(TPBDTFA)3Phen, was designed and synthesized. Photoluminescence measurements show that the energy absorbed by the organic ligands was efficiently transferred to the central Eu3+ ions, and the complex exhibits strongly red emission due to the 5D0-7Fj transitions of Eu3+ ions with appropriate CIE (Commission Internationale de l'Eclairage, International Commission on Illumination) chromaticity coordinates (x = 0.66, y = 0.33) under 310-420 nm light excitation. The luminescence quantum yield for the Eu3+ complex is 0.18. Thermogravimetric analysis (TGA) confirms a high thermal stability of the complex with a decomposition temperature of 341 °C. All the characteristics indicate that the Eu3+ complex is a highly efficient red phosphor suitable to be excited by near UV light. An intense red-emitting LED was fabricated by combining the mono-phosphor Eu(TPBDTFA)3Phen with a ∼395 nm emitting InGaN chip.",

keywords = "Europium complex, InGaN LED, Luminescence, Phosphors",

author = "Nengjun Xiang and Yong Xu and Zhengliang Wang and Xiaoxiao Wang and Leung, \{Louis M.\} and Jing Wang and Qiang Su and Menglian Gong",

note = "Funding Information: This work was financially supported by grants from the Scientific and Technical Projects of Guangdong Province (Nos. B10502 and ZB2003A07) and from the Research Grant Council of Hong Kong (No. HKBU/22037/02P).",

year = "2008",

month = apr,

doi = "10.1016/j.saa.2007.06.015",

language = "English",

volume = "69",

pages = "1150--1153",

journal = "Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy",

issn = "1386-1425",

publisher = "Elsevier B.V.",

number = "4",

}

TY - JOUR

T1 - A single red InGaN-based light-emitting diode with a europium (III) ternary complex as mono-phosphor

AU - Xiang, Nengjun

AU - Xu, Yong

AU - Wang, Zhengliang

AU - Wang, Xiaoxiao

AU - Leung, Louis M.

AU - Wang, Jing

AU - Su, Qiang

AU - Gong, Menglian

N1 - Funding Information: This work was financially supported by grants from the Scientific and Technical Projects of Guangdong Province (Nos. B10502 and ZB2003A07) and from the Research Grant Council of Hong Kong (No. HKBU/22037/02P).

PY - 2008/4

Y1 - 2008/4

N2 - A novel europium (III) ternary complex, Eu(TPBDTFA)3Phen, was designed and synthesized. Photoluminescence measurements show that the energy absorbed by the organic ligands was efficiently transferred to the central Eu3+ ions, and the complex exhibits strongly red emission due to the 5D0-7Fj transitions of Eu3+ ions with appropriate CIE (Commission Internationale de l'Eclairage, International Commission on Illumination) chromaticity coordinates (x = 0.66, y = 0.33) under 310-420 nm light excitation. The luminescence quantum yield for the Eu3+ complex is 0.18. Thermogravimetric analysis (TGA) confirms a high thermal stability of the complex with a decomposition temperature of 341 °C. All the characteristics indicate that the Eu3+ complex is a highly efficient red phosphor suitable to be excited by near UV light. An intense red-emitting LED was fabricated by combining the mono-phosphor Eu(TPBDTFA)3Phen with a ∼395 nm emitting InGaN chip.

AB - A novel europium (III) ternary complex, Eu(TPBDTFA)3Phen, was designed and synthesized. Photoluminescence measurements show that the energy absorbed by the organic ligands was efficiently transferred to the central Eu3+ ions, and the complex exhibits strongly red emission due to the 5D0-7Fj transitions of Eu3+ ions with appropriate CIE (Commission Internationale de l'Eclairage, International Commission on Illumination) chromaticity coordinates (x = 0.66, y = 0.33) under 310-420 nm light excitation. The luminescence quantum yield for the Eu3+ complex is 0.18. Thermogravimetric analysis (TGA) confirms a high thermal stability of the complex with a decomposition temperature of 341 °C. All the characteristics indicate that the Eu3+ complex is a highly efficient red phosphor suitable to be excited by near UV light. An intense red-emitting LED was fabricated by combining the mono-phosphor Eu(TPBDTFA)3Phen with a ∼395 nm emitting InGaN chip.

KW - Europium complex

KW - InGaN LED

KW - Luminescence

KW - Phosphors

UR - https://www.scopus.com/pages/publications/40749162809

U2 - 10.1016/j.saa.2007.06.015

DO - 10.1016/j.saa.2007.06.015

M3 - Journal article

C2 - 17690009

AN - SCOPUS:40749162809

SN - 1386-1425

VL - 69

SP - 1150

EP - 1153

JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

IS - 4

ER -

A single red InGaN-based light-emitting diode with a europium (III) ternary complex as mono-phosphor

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