Triphenylamine containing LED polymers with variable conjugation lengths for control of color emission
Montgomery, Eva I.
MetadataShow full item record
In the design of LED polymers, which emit light in the blue to red region of the visible spectrum when used in LED devices, certain problems need to be addressed: quantum efficiency, thermal stability, the ability to form thin films without pinholes, and crystallinity. Currently, it is believed that incorporation of either an electron-injecting or a hole-injecting layer on top of the emissive layer improves the quantum efficiency. In this paper, we have developed the synthetic strategy to incorporate triphenylamine (possibly a hole-injecting functionality) into the backbone of a polymer at the same time allowing for the control o f color emission. Color emission can be altered by conjugation extension or by use of different di-Wittig salts.