Tunable Eu2+ emission in KxNa1-xLuS2 phosphors for white LED application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F16%3A00304463" target="_blank" >RIV/68407700:21340/16:00304463 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0264127516307456" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0264127516307456</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matdes.2016.05.123" target="_blank" >10.1016/j.matdes.2016.05.123</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tunable Eu2+ emission in KxNa1-xLuS2 phosphors for white LED application

Popis výsledku v původním jazyce

Set of Eu2+-doped KxNa1-xLuS2 phosphors (x = 0–1) in the form of transparent crystalline hexagonal platelets was successfully synthesized by chemical reaction under the flow of hydrogen sulfide. Their physical properties were investigated by means of X-ray diffraction, X-ray fluorescence, time-resolved luminescence spectroscopy and electron paramagnetic resonance. Special attention was given to photoluminescence emission spectra under the 395 nm and 455 nm excitation aiming to obtain white emission with tunable color temperature. EPR method was employed to understand the Eu2 + incorporation and distribution in the KxNa1-xLuS2 hosts. CIE xy-coordinates were calculated to compare effects of different K/Na concentration in KxNa1-xLuS2 on resulting spectrum. The application potential of mentioned compounds in the field of white LED solid state lighting phosphors is thoroughly discussed.

Název v anglickém jazyce

Tunable Eu2+ emission in KxNa1-xLuS2 phosphors for white LED application

Popis výsledku anglicky

Set of Eu2+-doped KxNa1-xLuS2 phosphors (x = 0–1) in the form of transparent crystalline hexagonal platelets was successfully synthesized by chemical reaction under the flow of hydrogen sulfide. Their physical properties were investigated by means of X-ray diffraction, X-ray fluorescence, time-resolved luminescence spectroscopy and electron paramagnetic resonance. Special attention was given to photoluminescence emission spectra under the 395 nm and 455 nm excitation aiming to obtain white emission with tunable color temperature. EPR method was employed to understand the Eu2 + incorporation and distribution in the KxNa1-xLuS2 hosts. CIE xy-coordinates were calculated to compare effects of different K/Na concentration in KxNa1-xLuS2 on resulting spectrum. The application potential of mentioned compounds in the field of white LED solid state lighting phosphors is thoroughly discussed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials and Design

ISSN

0261-3069

e-ISSN

—

Svazek periodika

106

Číslo periodika v rámci svazku

September

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

363-370

Kód UT WoS článku

000381528900042

EID výsledku v databázi Scopus

2-s2.0-84989904806