Volume 103, Number 3, August 2013
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||28 August 2013|
Enhanced piezoelectric response in single-crystalline Bi4Ti3O12 nanoplates
1 Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University - Hunan Xiangtan 411105, China
2 Faculty of Materials, Optoelectronics and Physics, Xiangtan University - Hunan Xiangtan 411105, China
3 Laboratory of Fibre Materials and Modern Textile, the Growing Base for State Key Laboratory, Qingdao University Qingdao 266071, China
Received: 23 May 2013
Accepted: 15 July 2013
Hollow microspheres constructed by single-crystalline Bi4Ti3O12 (BIT) nanoplates were synthesized through a hydrothermal process. The characterization results show that the BIT nanoplates are single crystalline with a lateral size of about 200–500 nm and a thickness of 30–50 nm. Local piezoresponse force measurement indicated an enhanced piezoelectric coefficient d* 33 (58 pm/V) of BIT nanoplates than that of the BIT bulk single crystal. The possible reasons for such a large piezoelectric coefficient were analyzed by surface effects and nanodomain structures.
PACS: 77.65.-j – Piezoelectricity and electromechanical effects / 81.07.-b – Nanoscale materials and structures: fabrication and characterization / 68.35.B- – Structure of clean surfaces (and surface reconstruction)
© EPLA, 2013
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