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Inkjet-Printed In-Vitro Organic Electronic DevicesAsghar, Hussain 09 1900 (has links)
In-vitro electronic devices are promising to dynamically monitor minute-changes in
biological systems. Electronic devices based on conducting polymers such as poly(3,4-
ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) provide suitable and
attractive substrates for biointerfacing. The soft polymer surface acts as a cushion for the
living systems to interface while electronically detecting their properties. However, to this
date, most bioelectronics devices have been fabricated via multi-step lithography
techniques, which do not allow for mass fabrication and hence high throughput biosensing.
Inkjet printing presents an alternative to fabricate organic bioelectronic devices. Besides
being low-cost, inkjet printing allows to fabricate several devices in a short time with
flexible design patterns and minimal material waste. Here, using inkjet printing, we
fabricated PEDOT:PSS based organic electrochemical transistors (OECTs) for
biomembrane interfacing. We optimized the deposition of various inks (silver
nanoparticles (AgNPs), PEDOT:PSS, and the dielectric SU-8) used during the fabrication
of these devices. We characterized the electrical characteristics of all-printed OECTs with
various geometries and identified the high-performing ones. Due to the flexibility of ink
optimization and design patterns, these all inkjet-printed electronic devices provide an
alternative for mass production of biointerfacing platforms.
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Influences of Printing Techniques on the Electrical Performances of Conjugated Polymers for Organic TransistorsManuelli, Alessandro 11 January 2007 (has links) (PDF)
The discovery of conducting and semiconducting polymers has opened the possibility to produce
integrated circuits entirely of plastic with standard continuous printing techniques. Nowadays
several of this polymers are commercial available, however the performances of this materials are
strongly affected by their supramolecular order achieved after deposition. In this research, the
influence of some standard printing techniques on the electrical performances of conjugated
polymers is evidenced in order to realise logic devices with these materials.
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Influences of Printing Techniques on the Electrical Performances of Conjugated Polymers for Organic TransistorsManuelli, Alessandro 20 July 2006 (has links)
The discovery of conducting and semiconducting polymers has opened the possibility to produce
integrated circuits entirely of plastic with standard continuous printing techniques. Nowadays
several of this polymers are commercial available, however the performances of this materials are
strongly affected by their supramolecular order achieved after deposition. In this research, the
influence of some standard printing techniques on the electrical performances of conjugated
polymers is evidenced in order to realise logic devices with these materials.
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