University of California

University of Illinois

Lane W Martin

Ramamoorthy Ramesh

William P King

Robert James Zeches

Patrick C Fletcher

Provided herein are electron emission devices and device components for optical, electronic and optoelectronic devices, including cantilever-based MEMS and NEMS instrumentation. Devices of certain aspects of the invention integrate a dielectric, pyroelectric, piezoelectric or ferroelectric film on the receiving surface of a substrate having an integrated actuator, such as a temperature controller or mechanical actuator, optionally in the form of a cantilever device having an integrated heater-thermometer. Also provided are methods of making and using electron emission devices for a range of applications including sensing and imaging technology.

Electron emission device

The present invention provides for a composition comprising a thin film of BiFeOhaving a thickness ranging from 20 nm to 300 nm, a first electrode in contact with the BiFeOthin film, and a second electrode in contact with the BiFeOthin film; wherein the first and second electrodes are in electrical communication. The composition is free or essentially free of lead (Pb). The BFO thin film is has the piezoelectric property of changing its volume and/or shape when an electric field is applied to the BFO thin film.

Growing community of inventors

Champaign, IL, United States of America

Lane W Martin