Work

Pyroelectric response of ferroelectric nanowires: Size effect and electric energy harvesting

Year: 2010

Type: article

Abstract: The size effect on pyroelectric response of ferroelectric nanowires is analyzed. The pyroelectric coefficient strongly increases with the wire radius decrease and diverges at critical radius Rcr corresponding to the size-driven transition into paraelectric phase. Size-driven enhancement of pyroelectric coupling leads to the giant pyroelectric current and voltage generation by the polarized ferroelectric nanoparticles in response to the temperature fluctuation. The maximum efficiency of the pyroelectric energy harvesting and bolometric detection is derived, and is shown to approach the Carnot limit for low temperatures.

Source: Journal of Applied Physics

DOI: 10.1063/1.3474964

Authors: A. N. Morozovska, E. A. Eliseev, G. S. Svechnikov, S. V. Kalinin

Institutions: Oak Ridge National Laboratory, National Academy of Sciences of Ukraine, Frantsevich Institute for Problems in Materials Science, V.E. Lashkaryov Institute of Semiconductor Physics

Language: English

Topic: Ferroelectric and Piezoelectric Materials

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: green