Jump to main content
Jump to site search


A Highly Efficient and Thermally Stable Green Phosphor Lu2SrAl4SiO12:Ce3+ for Full-spectrum White LEDs

Abstract

The traditional phosphor-converted white LEDs suffer from the so-called blue-green cavity in their emission spectra. However, satisfactory phosphors with sufficient emission around 490 nm are still lacking. Herein, we report a newly designed garnet-type phosphor Lu2SrAl4SiO12:Ce3+ (LSAS:Ce3+) through chemical unit cosubstitution, whose emission can well fill the blue-green cavity. Importantly, LSAS:Ce3+ possesses nearly zero thermal quenching even at 473 K (200 ℃) as well as high quantum efficiency of 93.3%. Finally, the as-fabricated warm white LED device shows high color rendering index of 97.6 with R9 = 94, indicating its great potential for white LEDs.

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Aug 2018, accepted on 06 Sep 2018 and first published on 13 Sep 2018


Article type: Communication
DOI: 10.1039/C8TC04101F
Citation: J. Mater. Chem. C, 2018, Accepted Manuscript
  •   Request permissions

    A Highly Efficient and Thermally Stable Green Phosphor Lu2SrAl4SiO12:Ce3+ for Full-spectrum White LEDs

    Y. Xiao, W. Xiao, L. Zhang, Z. Hao, G. Pan, Y. Yang, X. Zhang and J. Zhang, J. Mater. Chem. C, 2018, Accepted Manuscript , DOI: 10.1039/C8TC04101F

Search articles by author

Spotlight

Advertisements