Licensable Technologies : Materials : Nanotechnology

Enhanced Photophysics of Conjugated Polymers

Abstract
Scientists at LANL have discovered that the fluorescence and related photophysical properties of an anionic conjugated polymer can be simply tuned by addition of small amounts of certain cationic detergents. The fluorescence of the polymer MPS-PPV alone has a quantum efficiency of less than 5% and its fluorescence envelope is relatively broad. By addition of the detergent, the fluorescence spectrum sharpens and the quantum efficiency increases by a factor of more than twenty. Given employment of fluorescent conjugated polymers in devices ranging from sensors to LED displays, which depend on high stability and highest possible photoluminescence efficiencies, this technique may prove of broad application and utility.

Application(s)
The present invention is broadly applicable to fluorescent conjugated polymers in devices ranging from sensors to LED displays.

IP Status: Available both Exclusively and Non Exclusively

Reference Number: 151

S Number: DOE reference no.(s): 94,700

Patents & Applications:
United States National Patent Number 6569952 Issued on 05/27/2003

Posted: 09-17-2004

Contact
John Russell
Technology Transfer Division
Los Alamos National Laboratory
P.O. Box 1663, MailStop C334
(505) 665-3941
jrussell@lanl.gov