OLEDs and PLEDs
Introduction
Projects of interest include the synthesis and characterization of alkylthio- and alkylsilyl- containing poly(meta-phenylene vinylenes) and poly(fluorenevinylenes) for white light emitting devices and polymeric light emitting devices (PLEDs).
PPV derivatives
A collaboration with Dr. Jose J. Gutierrez (UT-PA) on the synthesis and characterization of alkylthio-, alkylsulfinyl- symmetrically substituted PPVs, alkylsulfonyl- and alkylsilyl- asymmetrically substituted meta-PPVs.
PPV derivative block copolymers
Involves the synthesis and characterization of block copolymers having alkoxy- and alkylammonium-/alkylsulfinyl- symmetrically substituted PPVs segments for solar cell applications.
PLEDs
An ongoing collaboration with Raquel Ovalle from Dr. Anvar Zakhidov's group fabricating PLEDs using our BEH PPV. Recent devices using this polymer showed a high luminance of approximately 1800 cd/m2 with a maximum current efficiency of 0.835 cd/A.
Device structure ITO/PEDOT:PSS/BEH PPV/Ca/Al at 12 V (left) and 14 V (right).
Electro-spun BEH PPV and PCBM
An ongoing collaboration with Harvey Liu from the Dr. Kenneth J. Balkus' group, we produce BEH PPV/PCBM nano-composite fibers thru electro-spinning of the PPV polymer and PCBM without the use of surfactants.