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Title: Enhancement of Local Piezoresponse in Polymer Ferroelectrics via Nanoscale Control of Microstructure

Abstract

Polymer ferroelectrics are flexible and lightweight electromechanical materials that are widely studied due to their potential application as sensors, actuators, and energy harvesters. However, one of the biggest challenges is their low piezoelectric coefficient. Here, we report a mechanical annealing effect based on local pressure induced by a nanoscale tip that enhances the local piezoresponse. This process can control the nanoscale material properties over a microscale area at room temperature. We attribute this improvement to the formation and growth of beta-phase extended chain crystals via sliding diffusion and crystal alignment along the scan axis under high mechanical stress. We believe that this technique can be useful for local enhancement of piezoresponse in ferroelectric polymer thin films.

Authors:
 [1];  [2];  [1];  [1];  [3];  [1];  [1];  [4];  [2];  [2];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Univ. of Nebraska, Lincoln, NE (United States)
  3. Xiangtan Univ., Hunan (China)
  4. Univ. of Washington, Seattle, WA (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1172270
Alternate Identifier(s):
OSTI ID: 1357171
Grant/Contract Number:
AC02-06CH11357; LDRD FY2014-063-R1; User Facilities under Contract DE-AC02-06CH11357
Resource Type:
Journal Article: Published Article
Journal Name:
ACS Nano
Additional Journal Information:
Journal Volume: 9; Journal Issue: 2; Journal ID: ISSN 1936-0851
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; P(VDF-TrFE ); ferroelectric polymers; mechanical annealing effect; piezoresponse hysteresis loops

Citation Formats

Choi, Yoon-Young, Sharma, Pankaj, Phatak, Charudatta, Gosztola, David J., Liu, Yunya, Lee, Joonseok, Lee, Byeongdu, Li, Jiangyu, Gruverman, Alexei, Ducharme, Stephen P., and Hong, Seungbum. Enhancement of Local Piezoresponse in Polymer Ferroelectrics via Nanoscale Control of Microstructure. United States: N. p., 2015. Web. doi:10.1021/nn5067232.
Choi, Yoon-Young, Sharma, Pankaj, Phatak, Charudatta, Gosztola, David J., Liu, Yunya, Lee, Joonseok, Lee, Byeongdu, Li, Jiangyu, Gruverman, Alexei, Ducharme, Stephen P., & Hong, Seungbum. Enhancement of Local Piezoresponse in Polymer Ferroelectrics via Nanoscale Control of Microstructure. United States. doi:10.1021/nn5067232.
Choi, Yoon-Young, Sharma, Pankaj, Phatak, Charudatta, Gosztola, David J., Liu, Yunya, Lee, Joonseok, Lee, Byeongdu, Li, Jiangyu, Gruverman, Alexei, Ducharme, Stephen P., and Hong, Seungbum. Sun . "Enhancement of Local Piezoresponse in Polymer Ferroelectrics via Nanoscale Control of Microstructure". United States. doi:10.1021/nn5067232.
@article{osti_1172270,
title = {Enhancement of Local Piezoresponse in Polymer Ferroelectrics via Nanoscale Control of Microstructure},
author = {Choi, Yoon-Young and Sharma, Pankaj and Phatak, Charudatta and Gosztola, David J. and Liu, Yunya and Lee, Joonseok and Lee, Byeongdu and Li, Jiangyu and Gruverman, Alexei and Ducharme, Stephen P. and Hong, Seungbum},
abstractNote = {Polymer ferroelectrics are flexible and lightweight electromechanical materials that are widely studied due to their potential application as sensors, actuators, and energy harvesters. However, one of the biggest challenges is their low piezoelectric coefficient. Here, we report a mechanical annealing effect based on local pressure induced by a nanoscale tip that enhances the local piezoresponse. This process can control the nanoscale material properties over a microscale area at room temperature. We attribute this improvement to the formation and growth of beta-phase extended chain crystals via sliding diffusion and crystal alignment along the scan axis under high mechanical stress. We believe that this technique can be useful for local enhancement of piezoresponse in ferroelectric polymer thin films.},
doi = {10.1021/nn5067232},
journal = {ACS Nano},
number = 2,
volume = 9,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 2015},
month = {Sun Feb 01 00:00:00 EST 2015}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1021/nn5067232

Citation Metrics:
Cited by: 15 works
Citation information provided by
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