Pyroelectric electron emission from nanometer-thick films of PbZr xTi1-xO3

Patrick C. Fletcher, Vengadesh Kumara R. Mangalam, Lane W. Martin, William P. King

Research output: Contribution to journalArticlepeer-review

Abstract

We report pyroelectric emission from PbZrxTi1-xO 3 (PZT) thin films on nanometer-sharp tips. The epitaxial PZT films are 30 nm thick and grown directly on single-crystal silicon tips. Pyroelectric emission occurs for heating rates of 50 °C/min in a 20 V/μm external field. The emission current is a maximum of 240 nA when the heating rate is 100 °C/min and the electric field strength is 6.7 V/μm. The emitted charge is ∼7 of that expected for a perfect thin film emitter of epitaxial PbZr xTi1-xO3. We calculate that pyroelectric emission can occur without an applied field if the heating rate exceeds 4.0 × 107 °C/min.

Original languageEnglish (US)
Article number192908
JournalApplied Physics Letters
Volume102
Issue number19
DOIs
StatePublished - May 13 2013

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Pyroelectric electron emission from nanometer-thick films of PbZr <sub>x</sub>Ti<sub>1-x</sub>O<sub>3</sub>'. Together they form a unique fingerprint.

Cite this