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Wednesday, November 18 • 1:00pm - 1:45pm
AT8: Ultra-Low-Power Chemical Sensing With Metal-Organic Frameworks

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A classic challenge in gas sensing is chemical selectivity of the sensing material. A new class of materials, metal-organic frameworks (MOFs), can take on thousands of forms, each with unique chemical adsorption properties. In this session, David Gardner discusses their work demonstrating that MOFs can be used directly as a sensing material on the chemical-sensitive field-effect transistor (CS-FET), an ultra-low-power sensing platform. An unexpected challenge of the CS-FET platform was interference from off-target molecules reacting with the SiO2 gate dielectric, and we show how this interference can be eliminated. He shows several highly chemically-selective metal-organic framework sensing materials, including HKUST-1 for humidity, ZIF-8 for nitrous oxide, and MFM-300 for ammonia.

Speakers
avatar for David Gardner, Ph.D

David Gardner, Ph.D

Chemical Engineering Researcher, Berkeley Sensor & Actuator Center
David Gardner is a chemical engineering researcher in Roya Maboudian research lab at the Berkeley Sensor & Actuator Center (BSAC), U. C. Berkeley.  He has previously worked for Bemis Company, Inc. on high-puncture-strength nylon films for food packaging. His current research interests... Read More →


Wednesday November 18, 2020 1:00pm - 1:45pm AKST
Executive Ballroom C