Conjugated polyelectrolytes for organic light emitting transistors RID F-5849-2010

Author:

Seo, Jung Hwa  Namdas, Ebinazar B.  Gutacker, Andrea  Heeger, Alan J.  Bazan, Guillermo C.  

Journal:

APPLIED PHYSICS LETTERS

Issue Date:

2010

Abstract(summary):

We report on solution-processed light emitting field-effect transistors (LEFETs) that incorporate symmetric high work function (WF) source and drain metal electrodes. A key architectural design is the incorporation of a conjugated polyelectrolyte (CPE) electron injection layer atop the emissive layer. The device structure also comprises a hole-transporting layer underneath the emissive layer. Both holes and electrons are injected from stable, high WF metal though the CPE layer leading to electroluminescence near the electron-injecting electrode. With the benefits of the simplicity in device fabrication, the LEFETs incorporating CPEs are interesting structures for integrated organic optoelectronic devices. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3467856]