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.

PPVPPV
BEH

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.

BEH-b-QBAMH scheme 1-1
Oxid procedure of BEHBEHM

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.

Oxid procedure of BEHBEHM151-1-06

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.

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