EFFECTS OF GREEN - EMITTING PHOSPHOR (LA, CE, TB) PO4:CE:TB ON LUMINOUS FLUX AND COLOR QUALITY OF WHITE LED LAMPS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F17%3A10238629" target="_blank" >RIV/61989100:27240/17:10238629 - isvavai.cz</a>

Výsledek na webu

<a href="http://advances.utc.sk/index.php/AEEE/article/download/2111/1317" target="_blank" >http://advances.utc.sk/index.php/AEEE/article/download/2111/1317</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.15598/aeee.v15i5.2111" target="_blank" >10.15598/aeee.v15i5.2111</a>

Jazyk výsledku

angličtina

Název v původním jazyce

EFFECTS OF GREEN - EMITTING PHOSPHOR (LA, CE, TB) PO4:CE:TB ON LUMINOUS FLUX AND COLOR QUALITY OF WHITE LED LAMPS

Popis výsledku v původním jazyce

In this paper, we present and analyze the influence of (La, Ce, Tb)PO4:Ce:Tb green phosphor (LaTb) toward the performance of the multi-chip white LED (MCW-LEDs) lamps including color uniformity, lumen output, Color Rendering Index (CRI), and Color Quality Scale (CQS). By mixing the LaTb green phosphor and the YAG:Ce yellow phosphor compounding under condition of 7000 K MCW-LEDs, this new approach can produce a huge meaningful change in lumen output and the angular color distribution of MCW-LEDs. We also study the interaction between the concentration and size of the LaTb particles with output flux, color uniformity, CRI, and CQS. The obtained results demonstrate that the higher lumen output, the higher color uniformity enhancement could be attained by adding the LaTb particles with a size range around 6-8 mu m and the concentration around 1.5 % in phosphor layer. Meanwhile, the decrease of the color rendering value (CRI) and the Color Quality Scale (CQS) tend to be stable and insignificant. In other words, the obtained results provide a prospective method which plays an important role in the development of MCW-LED manufacturing technology.

Název v anglickém jazyce

EFFECTS OF GREEN - EMITTING PHOSPHOR (LA, CE, TB) PO4:CE:TB ON LUMINOUS FLUX AND COLOR QUALITY OF WHITE LED LAMPS

Popis výsledku anglicky

In this paper, we present and analyze the influence of (La, Ce, Tb)PO4:Ce:Tb green phosphor (LaTb) toward the performance of the multi-chip white LED (MCW-LEDs) lamps including color uniformity, lumen output, Color Rendering Index (CRI), and Color Quality Scale (CQS). By mixing the LaTb green phosphor and the YAG:Ce yellow phosphor compounding under condition of 7000 K MCW-LEDs, this new approach can produce a huge meaningful change in lumen output and the angular color distribution of MCW-LEDs. We also study the interaction between the concentration and size of the LaTb particles with output flux, color uniformity, CRI, and CQS. The obtained results demonstrate that the higher lumen output, the higher color uniformity enhancement could be attained by adding the LaTb particles with a size range around 6-8 mu m and the concentration around 1.5 % in phosphor layer. Meanwhile, the decrease of the color rendering value (CRI) and the Color Quality Scale (CQS) tend to be stable and insignificant. In other words, the obtained results provide a prospective method which plays an important role in the development of MCW-LED manufacturing technology.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20203 - Telecommunications

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Advances in Electrical and Electronic Engineering

ISSN

1336-1376

e-ISSN

—

Svazek periodika

15

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

7

Strana od-do

890-896

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85040790343