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Lead‐free piezoelectric (Na 0.5 Bi 0.5 ) 0.94 TiO 3 –Ba 0.06 TiO 3 nanofiber by electrospinning
Author(s) -
Chen Y. Q.,
Zheng X. J.,
Feng X.,
Zhang D. Z.,
Dai S. H.
Publication year - 2009
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.200903274
Subject(s) - nanofiber , piezoelectricity , materials science , piezoelectric coefficient , nanoscopic scale , electric field , scanning force microscopy , perovskite (structure) , electrospinning , polarization (electrochemistry) , nanotechnology , analytical chemistry (journal) , composite material , atomic force microscopy , polymer , crystallography , chemistry , physics , quantum mechanics , chromatography
Abstract Lead‐free (Na 0.5 Bi 0.5 ) 0.94 TiO 3 –Ba 0.06 TiO 3 (NBT‐BT6) nanofibers were synthesized by the sol–gel process and electrospinning, and a butterfly‐shaped piezoelectric response was measured by scanning force microscopy. NBT‐BT6 nanofibers with perovskite phase were formed, after being cleaned at 700 °C for 1 hour, and the diameters are in the range of 150 nm to 300 nm. The average value of the effective piezoelectric coefficient d 33 is 102 pm/V. The high piezoelectricity may be attributed to the easiness for the electric field to tilt the polar vector of the domain and to the increase of the possible spontaneous polarization direction. There is a potential for the application of NBT‐BT6 nanofibers in nanoscale piezoelectric devices. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)