Red InGaN-based light-emitting diodes with a novel europium (III) tetrabasic complex as mono-phosphor

N. J. Xiang; Louis M L Leung; Shu Kong So; Wang Jing Wang; Su Qiang Su; M. L. Gong

doi:10.1016/j.matlet.2006.02.013

Red InGaN-based light-emitting diodes with a novel europium (III) tetrabasic complex as mono-phosphor

N. J. Xiang, Louis M L Leung, Shu Kong So, Wang Jing Wang, Su Qiang Su, M. L. Gong^*

^*Corresponding author for this work

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

39 Citations (Scopus)

Abstract

A novel europium (III) tetrabasic complex, Eu (TPBDTFA)₂ (TPATFA) Phen, was designed and synthesized. Photoluminescence measurements show that 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 = 0.64, y = 0.35) under 230-470 nm light excitation. The luminescence quantum yield for the Eu³⁺ complex is 0.126. Thermogravimetric analysis (TGA) confirms highly thermal stability of the complex with a decomposition temperature of 383.4 °C. All the characteristics indicate that the Eu³⁺ complex is highly efficiently red phosphor suitable to be excited by near UV-violet light. An intense red-emitting LED was fabricated by combining the mono-phosphor Eu (TPBDTFA)₂ (TPATFA) Phen with a ∼395 nm emitting InGaN chip.

Original language	English
Pages (from-to)	2909-2913
Number of pages	5
Journal	Materials Letters
Volume	60
Issue number	23
DOIs	https://doi.org/10.1016/j.matlet.2006.02.013
Publication status	Published - Oct 2006

Scopus Subject Areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

User-Defined Keywords

Europium complex
InGaN LED
Luminescence
Phosphors

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10.1016/j.matlet.2006.02.013

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@article{0bbb5f50f53f4342b100a57e0465595e,

title = "Red InGaN-based light-emitting diodes with a novel europium (III) tetrabasic complex as mono-phosphor",

abstract = "A novel europium (III) tetrabasic complex, Eu (TPBDTFA)2 (TPATFA) Phen, was designed and synthesized. Photoluminescence measurements show that 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 = 0.64, y = 0.35) under 230-470 nm light excitation. The luminescence quantum yield for the Eu3+ complex is 0.126. Thermogravimetric analysis (TGA) confirms highly thermal stability of the complex with a decomposition temperature of 383.4 °C. All the characteristics indicate that the Eu3+ complex is highly efficiently red phosphor suitable to be excited by near UV-violet light. An intense red-emitting LED was fabricated by combining the mono-phosphor Eu (TPBDTFA)2 (TPATFA) Phen with a ∼395 nm emitting InGaN chip.",

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

author = "Xiang, {N. J.} and Leung, {Louis M L} and So, {Shu Kong} and {Jing Wang}, Wang and {Qiang Su}, Su and Gong, {M. L.}",

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

year = "2006",

month = oct,

doi = "10.1016/j.matlet.2006.02.013",

language = "English",

volume = "60",

pages = "2909--2913",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

number = "23",

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TY - JOUR

T1 - Red InGaN-based light-emitting diodes with a novel europium (III) tetrabasic complex as mono-phosphor

AU - Xiang, N. J.

AU - Leung, Louis M L

AU - So, Shu Kong

AU - Jing Wang, Wang

AU - Qiang Su, Su

AU - Gong, M. L.

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

PY - 2006/10

Y1 - 2006/10

N2 - A novel europium (III) tetrabasic complex, Eu (TPBDTFA)2 (TPATFA) Phen, was designed and synthesized. Photoluminescence measurements show that 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 = 0.64, y = 0.35) under 230-470 nm light excitation. The luminescence quantum yield for the Eu3+ complex is 0.126. Thermogravimetric analysis (TGA) confirms highly thermal stability of the complex with a decomposition temperature of 383.4 °C. All the characteristics indicate that the Eu3+ complex is highly efficiently red phosphor suitable to be excited by near UV-violet light. An intense red-emitting LED was fabricated by combining the mono-phosphor Eu (TPBDTFA)2 (TPATFA) Phen with a ∼395 nm emitting InGaN chip.

AB - A novel europium (III) tetrabasic complex, Eu (TPBDTFA)2 (TPATFA) Phen, was designed and synthesized. Photoluminescence measurements show that 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 = 0.64, y = 0.35) under 230-470 nm light excitation. The luminescence quantum yield for the Eu3+ complex is 0.126. Thermogravimetric analysis (TGA) confirms highly thermal stability of the complex with a decomposition temperature of 383.4 °C. All the characteristics indicate that the Eu3+ complex is highly efficiently red phosphor suitable to be excited by near UV-violet light. An intense red-emitting LED was fabricated by combining the mono-phosphor Eu (TPBDTFA)2 (TPATFA) Phen with a ∼395 nm emitting InGaN chip.

KW - Europium complex

KW - InGaN LED

KW - Luminescence

KW - Phosphors

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U2 - 10.1016/j.matlet.2006.02.013

DO - 10.1016/j.matlet.2006.02.013

M3 - Journal article

AN - SCOPUS:33746760147

SN - 0167-577X

VL - 60

SP - 2909

EP - 2913

JO - Materials Letters

JF - Materials Letters

IS - 23

ER -

Red InGaN-based light-emitting diodes with a novel europium (III) tetrabasic complex as mono-phosphor

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