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Title: Vertically aligned P(VDF-TrFE) core-shell structures on flexible pillar arrays

Abstract

PVDF and P(VDF-TrFE) nano-and micro-structures have been widely used due to their potential applications in several fields, including sensors, actuators, vital sign transducers, and energy harvesters. In this study, we developed vertically aligned P(VDF-TrFE) core-shell structures using high modulus polyurethane acrylate (PUA) pillars as the support structure to maintain the structural integrity. In addition, we were able to improve the piezoelectric effect by 1.85 times from 40 +/- 2 to 74 +/- 2 pm/V when compared to the thin film counterpart, which contributes to the more efficient current generation under a given stress, by making an effective use of the P(VDF-TrFE) thin top layer as well as the side walls. We attribute the enhancement of piezoelectric effects to the contributions from the shell component and the strain confinement effect, which was supported by our modeling results. We envision that these organic- based P(VDF-TrFE) core-shell structures will be used widely as 3D sensors and power generators because they are optimized for current generations by utilizing all surface areas, including the side walls of core-shell structures.

Authors:
 [1];  [2];  [2];  [3];  [4];  [3];  [1];  [2];  [3]
+ Show Author Affiliations
  1. Korea Advanced Inst. Science and Technology (KAIST), Daejeon (Korea, Republic of). Department of Materials Science and Engineering; Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Korea Advanced Inst. Science and Technology (KAIST), Daejeon (Korea, Republic of). Graduate School of Energy Environment Water Sustainability
  3. Korea Advanced Inst. Science and Technology (KAIST), Daejeon (Korea, Republic of). Department of Materials Science and Engineering
  4. Argonne National Lab. (ANL), Lemont, IL (United States). Nuclear Engineering Division
Publication Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Research Foundation of Korea (NRF); USDOE Office of Science (SC)
OSTI Identifier:
1221905
Alternate Identifier(s):
OSTI ID: 1356242
Grant/Contract Number:  
AC02-06CH11357; 2010-0015063; 2011K000674; 20103020060010; 2014R1A4A1003712; SC1100
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 5; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; P(VDF - TrFE); Piezoelectric polymers; energy generation; in - situ electromechanical characterization; vertically aligned core - shell structures

Citation Formats

Choi, Yoon-Young, Yun, Tae Gwang, Qaiser, Nadeem, Paik, Haemin, Roh, Hee Seok, Hong, Jongin, Hong, Seungbum, Han, Seung Min, and No, Kwangsoo. Vertically aligned P(VDF-TrFE) core-shell structures on flexible pillar arrays. United States: N. p., 2015. Web. doi:10.1038/srep10728.
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Choi, Yoon-Young, Yun, Tae Gwang, Qaiser, Nadeem, Paik, Haemin, Roh, Hee Seok, Hong, Jongin, Hong, Seungbum, Han, Seung Min, & No, Kwangsoo. Vertically aligned P(VDF-TrFE) core-shell structures on flexible pillar arrays. United States. https://doi.org/10.1038/srep10728
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Choi, Yoon-Young, Yun, Tae Gwang, Qaiser, Nadeem, Paik, Haemin, Roh, Hee Seok, Hong, Jongin, Hong, Seungbum, Han, Seung Min, and No, Kwangsoo. Thu . "Vertically aligned P(VDF-TrFE) core-shell structures on flexible pillar arrays". United States. https://doi.org/10.1038/srep10728. https://www.osti.gov/servlets/purl/1221905.
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@article{osti_1221905,
title = {Vertically aligned P(VDF-TrFE) core-shell structures on flexible pillar arrays},
author = {Choi, Yoon-Young and Yun, Tae Gwang and Qaiser, Nadeem and Paik, Haemin and Roh, Hee Seok and Hong, Jongin and Hong, Seungbum and Han, Seung Min and No, Kwangsoo},
abstractNote = {PVDF and P(VDF-TrFE) nano-and micro-structures have been widely used due to their potential applications in several fields, including sensors, actuators, vital sign transducers, and energy harvesters. In this study, we developed vertically aligned P(VDF-TrFE) core-shell structures using high modulus polyurethane acrylate (PUA) pillars as the support structure to maintain the structural integrity. In addition, we were able to improve the piezoelectric effect by 1.85 times from 40 +/- 2 to 74 +/- 2 pm/V when compared to the thin film counterpart, which contributes to the more efficient current generation under a given stress, by making an effective use of the P(VDF-TrFE) thin top layer as well as the side walls. We attribute the enhancement of piezoelectric effects to the contributions from the shell component and the strain confinement effect, which was supported by our modeling results. We envision that these organic- based P(VDF-TrFE) core-shell structures will be used widely as 3D sensors and power generators because they are optimized for current generations by utilizing all surface areas, including the side walls of core-shell structures.},
doi = {10.1038/srep10728},
journal = {Scientific Reports},
number = ,
volume = 5,
place = {United States},
year = {Thu Jun 04 00:00:00 EDT 2015},
month = {Thu Jun 04 00:00:00 EDT 2015}
}
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https://doi.org/10.1038/srep10728
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Direct-Write Piezoelectric Polymeric Nanogenerator with High Energy Conversion Efficiency
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Nanoscale piezoelectric response of ZnO nanowires measured using a nanoindentation technique
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