| Title |
Temperature-dependent luminescence of red-emitting Ba2Y5B5O17: Eu3+ phosphors with efficiencies close to unity for near-UV LEDs |
| Authors |
Ežerskytė, Eglė ; Grigorjevaitė, Julija ; Minderytė, Agnė ; Saitzek, Sebastien ; Katelnikovas, Artūras |
| DOI |
10.3390/ma13030763 |
| Full Text |
|
| Is Part of |
Materials.. Basel : MDPI AG. 2020, vol. 13, iss. 3, art. no. 763, p. 1-13.. ISSN 1996-1944. eISSN 1996-1944 |
| Keywords [eng] |
near-UV LED ; borate ; Eu3+ ; red phosphor ; ceramics ; CIE 1931 colour coordinates ; luminous efficacy ; thermal quenching ; quantum efficiency |
| Abstract [eng] |
Solid state white light sources based on a near-UV LED chip are gaining more and more attention. This is due to the increasing efficiency of near-UV-emitting LED chips and wider phosphors selection if compared to devices based on blue LED chips. Here, a brief overview is given of the concepts of generating white light employing near-UV LED and some optical properties of the available phosphors are discussed. Finally, the synthesis and optical properties of very efficient red-emitting Ba2Y5B5O17:Eu3+ phosphor powder and ceramics is reported and discussed in terms of possible application as a red component in near-UV LED-based white light sources. |
| Published |
Basel : MDPI AG |
| Type |
Journal article |
| Language |
English |
| Publication date |
2020 |
| CC license |
|
