Pyroelectric electron emission from a thin film of PbZrxTi 1-xO3 on a nanofabricated cathode

Autor: Fletcher, PC, Mangalam, RVK, Martin, LW, King, WP
Jazyk: angličtina
Rok vydání: 2013
Zdroj: Fletcher, PC; Mangalam, RVK; Martin, LW; & King, WP. (2013). Pyroelectric electron emission from a thin film of PbZrxTi 1-xO3 on a nanofabricated cathode. 2013 Transducers and Eurosensors XXVII: The 17th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS and EUROSENSORS 2013, 772-775. doi: 10.1109/Transducers.2013.6626880. UC Berkeley: Retrieved from: http://www.escholarship.org/uc/item/2sg7h405
DOI: 10.1109/Transducers.2013.6626880.
Popis: We report pyroelectric emission from thin films of crystalline PbZr 0.8Ti0.2O3 (PZT) on nanometer-sharp tips. The epitaxial PZT films are 30 nm thick and grown directly on batch fabricated single-crystal silicon tips. Pyroelectric emission occurs for heating rates ≥ 50 °C/min in a 20 V/μm external field, and for electric field strengths ≥ 6.7 V/μm when heated at 100 °C/min. The emitted electric charge is reasonable when compared to the theoretical maximum charge for this PZT film and these testing parameters. We calculate that a heating rate of 4.0×10 7 °C/min is necessary for unassisted pyroelectric emission. © 2013 IEEE.
Databáze: OpenAIRE