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Highly Sensitive Structured Elastomers as Rubber Dielectric Layers for Organic Transistors

Highly Sensitive Structured Elastomers as Rubber Dielectric Layers for Organic Transistors. Daniel C. Ralph, Cornell University, ECCS - 0335765.

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Highly Sensitive Structured Elastomers as Rubber Dielectric Layers for Organic Transistors

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  1. Highly Sensitive Structured Elastomers as Rubber Dielectric Layers for Organic Transistors Daniel C. Ralph, Cornell University, ECCS - 0335765 Flexible, capacitive pressure sensors with unprecedented sensitivity and very short response times that can be inexpensively fabricated over large areas by micro-structuring of thin films of the biocompatible elastomer polydimethylsiloxane have been demonstrated. The pressure sensitivity of the micro-structured films far surpassed that exhibited by unstructured elastomeric films of similar thickness and is tunable by using different microstructures. The micro-structured films were integrated into organic field effect transistors as the dielectric layer, forming a new type of active sensor device with similar excellent sensitivity and response times. Large area fabrication of rubber dielectric on flexible sheets Benjamin Tee1and Professor Zhenan Bao2 Departments of Electrical Engineering1 and Chemical Engineering2 Stanford University Work performed at Stanford Nanofabrication Facility Pressure sensor response in OFET configuration High sensitivity and rapid response time SCB Mannsfeld, Benjamin CK Tee, RM.Stoltenberg, et. al.,, “Highly sensitive flexible pressure sensors with micro-structured rubber dielectric layers”, Nature Materials, accepted July 2010

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