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Characterization of PEDOT:PSS dilutions for inkjet printing applied to OLED fabrication

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3 Author(s)
Lopez, M.A. ; Dept. de Ing. Electr, CINVESTAV-IPN Mexico, Mexico City ; Sanchez, J.C. ; Estrada, M.

This paper presents results of different dilutions of PEDOT:PSS on the uniformity, pattern definition and conductivity of inkjet printed films. PEDOT:PSS was diluted in water, ethylene glycol (EG) and dimethyl sulfoxide, (DMSO) in order to achieve the required viscosity in the range of 2 to 30 cps. In order improve the surface tension a surfactant Tritonreg X100 was added to some of these dilutions. Deposited films were characterized to obtain their refractive index, thickness and resistivity. As a final result, a polymeric light emitting diode (PLED) structure was fabricated using copolymer (BEHP-PPV)-co-(MEH-PPV) as active layer.

Published in:

Devices, Circuits and Systems, 2008. ICCDCS 2008. 7th International Caribbean Conference on

Date of Conference:

28-30 April 2008