Inkjet printed PEDOT:PSS for organic devices

Arjun Singh; Saumen Mandal; Vandana Singh; Ashish Garg; Monica Katiyar

doi:10.1117/12.928190

15 October 2012 Inkjet printed PEDOT:PSS for organic devices

Arjun Singh, Saumen Mandal, Vandana Singh, Ashish Garg, Monica Katiyar

Proceedings Volume 8549, 16th International Workshop on Physics of Semiconductor Devices; 854936 (2012) https://doi.org/10.1117/12.928190
Event: 16th International Workshop on Physics of Semiconductor Devices, 2011, Kanpur, India

Abstract

Printing technology is a low cost technique for the processing of organic electronic devices. Here, we report printing characteristics of poly (3,4-ethylenedioxythiophene) : poly (styrenesulfonate) (PEDOT:PSS), typically used as hole injection/transport layer in various organic devices e.g. organic light emitting diodes, solar cells, and field effect transistors. In this work, we optimize drop spacing and substrate temperature during ink-jet printing of PEDOT:PSS films on rigid (glass) and flexible (PET) substrates. Morphological characterization of the films was performed using optical and scanning electron microscopy. Optical transmittance was measured using UV-Vis spectrophotometer and sheet resistance of the films was measured using four-point probe technique. We find that substrate temperature and drop spacing significantly affect the morphology, in our case decreasing these lead to smooth morphology of the ink-jet printed PEDOT-PSS films.

Citation Download Citation

Arjun Singh, Saumen Mandal, Vandana Singh, Ashish Garg, and Monica Katiyar "Inkjet printed PEDOT:PSS for organic devices", Proc. SPIE 8549, 16th International Workshop on Physics of Semiconductor Devices, 854936 (15 October 2012); https://doi.org/10.1117/12.928190

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