These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: CaMg₂Al₁₆O₂₇:Mn⁴⁺-based red phosphor: a potential color converter for high-powered warm W-LED.
    Author: Wang B, Lin H, Xu J, Chen H, Wang Y.
    Journal: ACS Appl Mater Interfaces; 2014 Dec 24; 6(24):22905-13. PubMed ID: 25427724.
    Abstract:
    New non-rare-earth-based oxide red phosphor discovery is of great interest in the field of energy-efficient LED lighting. In this work, a novel blue-light activated CaMg2Al16O27:Mn(4+) (CMA:Mn(4+)) phosphor, showing strong red emission peaked at ∼655 nm under 468 nm excitation, is prepared by a solid-state reaction route. The microstructure and luminescent performance of this red-emitting phosphor are investigated in detail with the aids of X-ray diffraction refinement, diffuse reflection spectra, steady-state photoluminescence spectra and temperature-dependent PL/decay measurements. The crystal field strength (Dq) and the Racah parameters (B and C) are carefully calculated to evaluate the nephelauxetic effect of Mn(4+) suffering from the CMA host. After incorporating CMA:Mn(4+) and YAG:Ce(3+) phosphor microcrystals into the glass host via a "phosphor-in-glass (PiG)" approach, warm white-light is achieved in the assembled high-powered w-LED device, thanks to the improved correlated color temperature and color rendering index.
    [Abstract] [Full Text] [Related] [New Search]