Journal
OPTICS EXPRESS
Volume 22, Issue 5, Pages A276-A281Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.22.00A276
Keywords
-
Categories
Funding
- NSF SBIR program
- Washington Research Foundation
- W Fund
- Center for Commercialization (C4C)
- Buerk Center for Entrepreneurship of the University of Washington
Ask authors/readers for more resources
We demonstrate red-emitting silicon quantum dot (SiQD) phosphors as a low-cost and environment-friendly alternative to rare-earth element phosphors or CdSe quantum dots. After surface passivation, the SiQD-phosphors achieve high photoluminescence quantum yield = 51% with 365-nm excitation. The phosphors also have a peak photoluminescence wavelength at 630 nm and a full-width-at-half-maximum of 145 nm. The relatively broadband red emission is ideal for forming the basis of a warm white spectrum. With 365-nm or 405-nm LED pumping and the addition of green-and/ or blue-emitting rare-earth element phosphors, warm white LEDs with color rendering index similar to 95 have been achieved. (C)2014 Optical Society of America
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available