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IEEE Robotics & Automation Society Presentation - CMU SV 4/26, 7pm

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Edward Katz

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More options Apr 17 2012, 10:21 pm

From: Edward Katz <ed.k...@sv.cmu.edu>

Date: Tue, 17 Apr 2012 19:21:47 -0700

Local: Tues, Apr 17 2012 10:21 pm

Subject: IEEE Robotics & Automation Society Presentation - CMU SV 4/26, 7pm

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RAS logo

Thursday April 26th, 2011, 7PM

Location

Carnegie Mellon University-Silicon Valley, Room 118

Highly Sensitive Flexible Pressure Sensors for Artificial Skin Applications

Dr. Stefan C.B. Mannsfeld, Staff Scientist, Stanford Synchrotron Radiation Lightsource (SSRL)

Abstract

We humans interact with our physical environment through our senses of touch, sight, smell, taste, and hearing. One of the great challenges in developing artificial intelligence and natural interfaces between humans and machines is finding ways to emulate those senses through electrical circuits. Great advances have been made in creating sensors that recognize sight and sound, but the sense of touch remains difficult to engineer. In order to mimic the pressure sensing properties of natural skin, large arrays of pixel pressure sensors on a flexible and stretchable substrate are required. We developed flexible, capacitive pressure sensors with unprecedented sensitivity and very short response times that can be inexpensively fabricated over large areas by micro-structuring thin films of the dielectric elastomer polydimethylsiloxane (PDMS). The pressure sensitivity of the micro-structured films far surpasses that exhibited by unstructured elastomeric films of similar thickness and is tunable by the choice of shape and density of 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.

Biography

Dr. Stefan C.B. Mannsfeld is a staff scientist at the Stanford Synchrotron Radiation Lightsource (SSRL) in the Materials Research Department. He received his M.Sc. in Physics and PhD in Physics from the Technische Universität Dresden, Germany. Before joining SSRL in 2009, he was a DFG Postdoctoral Fellow with Zhenan Bao in Chemical Engineering at Stanford University where he studied organic semiconductor thin film growth and nucleation, the relationships between molecular packing and physical properties in organic semiconductor materials, and sensors based on flexible organic electronic circuitry. For his research on these materials, he was awarded SSRL's William E. and Diane M. Spicer Young Investigator Award in 2011.

See http://www.ewh.ieee.org/r6/scv/ras/

Cost FREE

-- 
Edward P. Katz, Ph.D.
Program Chair,  SCV-OEB-SF Joint Chapter
IEEE Robotics and Automation Society (RAS)
e.p.katz@ieee.org

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Edward Katz

Apr 26 2012, 3:34 am

From: Edward Katz <ed.k...@sv.cmu.edu>

Date: Wed, 25 Apr 2012 23:34:54 -0800

Local: Thurs, Apr 26 2012 3:34 am

Subject: IEEE Robotics & Automation Society Presentation - CMU SV 4/26, 7pm

Print | Individual message | Show original | Report this message | Find messages by this author

**
[image: RAS logo]

Thursday April 26th, 2011, 7PM

Location

Carnegie Mellon University-Silicon Valley, Room
118<http://www.cmu.edu/silicon-valley/about-us/directions.html>

Highly Sensitive Flexible Pressure Sensors for Artificial Skin Applications

Dr. Stefan C.B. Mannsfeld, Staff Scientist, Stanford Synchrotron
Radiation Lightsource (SSRL)
Abstract

We humans interact with our physical environment through our senses of
touch, sight, smell, taste, and hearing. One of the great challenges in
developing artificial intelligence and natural interfaces between humans
and machines is finding ways to emulate those senses through electrical
circuits. Great advances have been made in creating sensors that recognize
sight and sound, but the sense of touch remains difficult to engineer. In
order to mimic the pressure sensing properties of natural skin, large
arrays of pixel pressure sensors on a flexible and stretchable substrate
are required. We developed flexible, capacitive pressure sensors with
unprecedented sensitivity and very short response times that can be
inexpensively fabricated over large areas by micro-structuring thin films
of the dielectric elastomer polydimethylsiloxane (PDMS). The pressure
sensitivity of the micro-structured films far surpasses that exhibited by
unstructured elastomeric films of similar thickness and is tunable by the
choice of shape and density of 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.
Biography

Dr. Stefan C.B. Mannsfeld is a staff scientist at the Stanford Synchrotron
Radiation Lightsource (SSRL) in the Materials Research Department. He
received his M.Sc. in Physics and PhD in Physics from the Technische
Universität Dresden, Germany. Before joining SSRL in 2009, he was a DFG
Postdoctoral Fellow with Zhenan Bao in Chemical Engineering at Stanford
University where he studied organic semiconductor thin film growth and
nucleation, the relationships between molecular packing and physical
properties in organic semiconductor materials, and sensors based on
flexible organic electronic circuitry. For his research on these materials,
he was awarded SSRL's William E. and Diane M. Spicer Young Investigator
Award in 2011.

See http://www.ewh.ieee.org/r6/scv/ras/

Cost FREE

--
Edward P. Katz, Ph.D.
Program Chair, SCV-OEB-SF Joint Chapter
IEEE Robotics and Automation Society (RAS)e.p.k...@ieee.org[image: IEEE RAS]