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Meeting 2013 TMS Annual Meeting & Exhibition
Symposium 2013 and Beyond: Flexible Electronics
Presentation Title Flexible, Large-Area Sensor Circuits Fabricated by Additive Printing
Author(s) Tse Nga Ng, David Schwartz, Gregory Whiting, Robert Street, Janos Veres
On-Site Speaker (Planned) Tse Nga Ng
Abstract Scope Organic materials have been demonstrated as good candidates for large-area flexible sensors, because they allow wide tolerance of sensor geometry and thickness, which would ease fabrication problems such as strain induced cracking on deformable platforms. Here we present organic photodiodes and control circuits that were fabricated by inkjet printing. The photodiode was made from a polymer blend, and an optimized photodiode film was integrated with an active-matrix transistor array. The flexible image sensor array showed sensitivity of 30 pW/cm^2 and was suitable for large-area x-ray imaging. In addition to active-matrix arrays, the printed transistors were developed into logic circuits for processing the sensor signals. For example, a shift register and a threshold detector were demonstrated to control sensor arrays. Device characterization and circuit simulations were carried out to achieve designs that tolerate the variations in printed devices, as well as to determine design rules for reliable printed electronic systems.
Proceedings Inclusion? Planned:

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Electrochemical Properties of Neural Interfaces on Smart, Softening Substrates
Fabricating High-Strain Capacity Conductors on Shape Memory Polymers in Metastable States to Accommodate Large Shape Changes in Flexible Electronic Devices
Flexible Organic Thin Film Transistors for Neural Interfaces
Flexible Organic Transistors on Shape Memory Polymer Substrates for Conformable Biointegrated Interfaces
Flexible, Large-Area Sensor Circuits Fabricated by Additive Printing
Graphene Coated with Titanium Nitride as Electrode Materials for Neural Interfaces
Growth Time Performance Dependence of Vertically Aligned Carbon Nanotube Supercapacitors Grown on Aluminum Substrates
High-Performance Flexible Organic Photovoltaic Cells with Amorphous ZITO Electrode
Low-Temperature Materials for a Neuromorphic Architecture
Shape Memory Polymer Substrates for Softening, 3D Neural Interfaces
Use of Compliant Materials in the Fabrication of a Flexible Utah Neural Interface Electrode Array

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