Warm-white LED with ultra high luminous efficacy due to sensitisation of Eu3+ photoluminescence by the uranyl moiety in K4(UO2)Eu2(Ge2O7)2-Reference-Cited by-同舟云学术

Warm-white LED with ultra high luminous efficacy due to sensitisation of Eu3+ photoluminescence by the uranyl moiety in K4(UO2)Eu2(Ge2O7)2

Published:2018 Issue:26 Volume:6 Page:6966-6974
ISSN:2050-7526
Container-title:Journal of Materials Chemistry C
language:en
Short-container-title:J. Mater. Chem. C

Author:

Baur Florian¹²³⁴^ORCID,Jüstel Thomas¹²³⁴^ORCID

Affiliation:

1. Münster University of Applied Sciences

2. Dept. of Chemical Engineering

3. Steinfurt D-48565

4. Germany

Abstract

A warm-white LED with a CCT of 2700 K and a very high LE of 360 lm W_opt⁻¹ was fabricated by use of K₄(UO₂)Eu₂(Ge₂O₇)₂ as the red emitter. A highly efficient uranyl to Eu³⁺ energy transfer is utilized for sensitisation. This is the first report of a Eu³⁺ activated phosphor being successfully employed on a blue emitting (In,Ga)N LED.

Funder

Merck KGaA

Publisher

Royal Society of Chemistry (RSC)

Subject

Materials Chemistry,General Chemistry

Link

http://pubs.rsc.org/en/content/articlepdf/2018/TC/C8TC01970C

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