Polymeric Nanofibers with Ultrahigh Piezoelectricity via Self -Orientation of Nanocrystals

被引：160
作者：
Liu, Xia [1 ,2 ]
Ma, Jing [3 ]
Wu, Xiaoming [1 ,2 ]
Lin, Liwei [4 ]
Wang, Xiaohong [1 ,2 ]
机构：
[1] Tsinghua Univ, Inst Microelect, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Tsinghua Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
[3] Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
[4] Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA
来源：
ACS NANO | 2017年 / 11卷 / 02期
基金：
中国国家自然科学基金;
关键词：
PVDF/GO nanofiber; core shell; piezoelectricity; self; -orientation; ss-phase; piezoresponse force microscopy; PIEZORESPONSE FORCE MICROSCOPY; POLY(VINYLIDENE FLUORIDE); COMPOSITE NANOFIBERS; BETA-PHASE; PVDF; POLYMORPHISM; COEFFICIENT; FABRICATION; REDUCTION; DEVICES;
D O I：
10.1021/acsnano.6b07961
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Piezoelectricity in macromolecule polymers has been gaining immense attention, particularly for applications in biocompatible, implantable, and flexible electronic devices. This paper introduces core shell-structured piezoelectric polyvinylidene fluoride (PVDF) nanofibers chemically wrapped by graphene oxide (GO) lamellae (PVDF/GO nanofibers), in which the polar ss-phase nanocrystals are formed and uniaxially self -oriented by the synergistic effect of mechanical stretching, high -voltage alignment, and chemical interactions. The ss-phase orientation of the PVDF/GO nanofibers along their axes is observed at atomic scale through high resolution transmission electron microscopy, and the ss-phase content is found to be 88.5%. The piezoelectric properties of the PVDF/GO nanofibers are investigated in terms of piezoresponse mapping, local hysteresis loops, and polarization reversal by advanced piezoresponse force microscopy. The PVDF/GO nanofibers show a desirable out -of-plane piezoelectric constant (d33) of 93.75 pm WI (at 1.0 wt % GO addition), which is 426% higher than that of the conventional pure PVDF nanofibers. The mechanism behind this dramatic enhancement in piezoelectricity is elucidated by three-dimensional molecular modeling.
引用
收藏
页码：1901 / 1910
页数：10
相关论文
共 47 条
[1]   Nanoscale investigation of ferroelectric properties in electrospun barium titanate/polyvinylidene fluoride composite fibers using piezoresponse force microscopy [J].
Baji, Avinash ;
Mai, Yiu-Wing ;
Li, Qian ;
Liu, Yun .
COMPOSITES SCIENCE AND TECHNOLOGY, 2011, 71 (11) :1435-1440
[2]   Electrospinning induced ferroelectricity in poly(vinylidene fluoride) fibers [J].
Baji, Avinash ;
Mai, Yiu-Wing ;
Li, Qian ;
Liu, Yun .
NANOSCALE, 2011, 3 (08) :3068-3071
[3]   High Strain in (K,Na)NbO3-Based Lead-Free Piezoelectric Fibers [J].
Bortolani, Francesca ;
del Campo, Adolfo ;
Fernandez, Jose F. ;
Clemens, Frank ;
Rubio-Marcos, Fernando .
CHEMISTRY OF MATERIALS, 2014, 26 (12) :3838-3848
[4]  
Egusa S, 2010, NAT MATER, V9, P643, DOI [10.1038/NMAT2792, 10.1038/nmat2792]
[5]   Hybrid Energy Harvester Consisting of Piezoelectric Fibers with Largely Enhanced 20 V for Wearable and Muscle-Driven Applications [J].
Fuh, Yiin-Kuen ;
Ye, Jia-Cheng ;
Chen, Po-Chou ;
Ho, Hsi-Chun ;
Huang, Zih-Ming .
ACS APPLIED MATERIALS & INTERFACES, 2015, 7 (31) :16923-16931
[6]   Mapping nanoscale elasticity and dissipation using dual frequency contact resonance AFM [J].
Gannepalli, A. ;
Yablon, D. G. ;
Tsou, A. H. ;
Proksch, R. .
NANOTECHNOLOGY, 2011, 22 (35)
[7]   Design of In Situ Poled Ce3+-Doped Electrospun PVDF/Graphene Composite Nanofibers for Fabrication of Nanopressure Sensor and Ultrasensitive Acoustic Nanogenerator [J].
Garain, Samiran ;
Jana, Santanu ;
Sinha, Tridib Kumar ;
Mandal, Dipankar .
ACS APPLIED MATERIALS & INTERFACES, 2016, 8 (07) :4532-4540
[8]   Preparation of PVDF/graphene ferroelectric composite films by in situ reduction with hydrobromic acids and their properties [J].
Huang, Liyu ;
Lu, Chunxiang ;
Wang, Fei ;
Wang, Lu .
RSC ADVANCES, 2014, 4 (85) :45220-45229
[9]   Large piezoelectric coefficient and ferroelectric nanodomain switching in Ba(Ti0.80Zr0.20)O3-0.5(Ba0.70Ca0.30)TiO3 nanofibers and thin [J].
Jalalian, A. ;
Grishin, A. M. ;
Wang, X. L. ;
Cheng, Z. X. ;
Dou, S. X. .
APPLIED PHYSICS LETTERS, 2014, 104 (10)
[10]   Switching spectroscopy piezoresponse force microscopy of ferroelectric materials [J].
Jesse, S ;
Baddorf, AP ;
Kalinin, SV .
APPLIED PHYSICS LETTERS, 2006, 88 (06)
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