Local surface potential distribution and its relaxation in ferroelectric poly(vinylidenefluoride-co-trifluoroethylene) thin films

被引：14
作者：
Choi, Hyunwoo [2 ]
Hong, Jongin [1 ]
No, Kwangsoo [2 ]
机构：
[1] Chung Ang Univ, Dept Chem, Seoul 156756, South Korea
[2] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
来源：
APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
FORCE MICROSCOPY; PIEZORESPONSE; NANOSCALE; POLYMER;
D O I：
10.1063/1.4734870
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Local surface potential distributions and their relaxation behavior in ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) thin films were investigated using Kelvin-probe force microscopy. All surface potentials were negative regardless of the sign of the applied voltage because of the intrinsic negative charges that originated from the self-aligned region of dipoles at the ferroelectric/electrode interface. Importantly, the intrinsic charges would have a remarkable influence on the reliability of written data. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4734870]
引用
收藏
页数：3
相关论文
共 17 条
[1]   Effects of surface morphology on retention loss of ferroelectric domains in poly(vinylidenefluoride-co-trifluoroethylene) thin films [J].
Choi, Hyunwoo ;
Hong, Seungbum ;
Sung, Tae-Hyun ;
No, Kwangsoo .
APPLIED PHYSICS LETTERS, 2011, 99 (09)
[2]   Spin-coated ultrathin poly(vinylidene fluoride-co-trifluoroethylene) films for flexible and transparent electronics [J].
Choi, Yoon-Young ;
Hong, Jongin ;
Leem, Dong-Seok ;
Park, Moonkyu ;
Song, HanWook ;
Sung, Tae-Hyun ;
No, Kwangsoo .
JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (13) :5057-5061
[3]   Nanoscale piezoresponse of 70 nm poly(vinylidene fluoride-trifluoro-ethylene) films annealed at different temperatures [J].
Choi, Yoon-Young ;
Hong, Jongin ;
Hong, Seungbum ;
Song, Hanwook ;
Cheong, Deok-Soo ;
No, Kwangsoo .
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2010, 4 (3-4) :94-96
[4]   Ferroelectric polymer Langmuir-Blodgett films for nonvolatile memory applications [J].
Ducharme, S ;
Reece, TJ ;
Othon, CM ;
Rannow, RK .
IEEE TRANSACTIONS ON DEVICE AND MATERIALS RELIABILITY, 2005, 5 (04) :720-735
[5]   Energy harvesting from a backpack instrumented with piezoelectric shoulder straps [J].
Granstrom, Jonathan ;
Feenstra, Joel ;
Sodano, Henry A. ;
Farinholt, Kevin .
SMART MATERIALS & STRUCTURES, 2007, 16 (05) :1810-1820
[6]   Local surface potential distribution in oriented ferroelectric thin films [J].
Kim, Yunseok ;
Buehlmann, Simon ;
Kim, Jiyoon ;
Park, Moonkyu ;
No, Kwangsoo ;
Kim, Yong Kwan ;
Hong, Seungbum .
APPLIED PHYSICS LETTERS, 2007, 91 (05)
[7]   Screen charge transfer by grounded tip on ferroelectric surfaces [J].
Kim, Yunseok ;
Kim, Jiyoon ;
Buhlmann, Simon ;
Hong, Seungbum ;
Kim, Yong Kwan ;
Kim, Seung-Hyun ;
No, Kwangsoo .
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2008, 2 (02) :74-76
[8]   Effect of local surface potential distribution on its relaxation in polycrystalline ferroelectric films [J].
Kim, Yunseok ;
Park, Moonkyu ;
Buehlmann, Simon ;
Hong, Seungbum ;
Kim, Yong Kwan ;
Ko, Hyoungsoo ;
Kim, Jiyoon ;
No, Kwangsoo .
JOURNAL OF APPLIED PHYSICS, 2010, 107 (05)
[9]   Nanoscale domain growth dynamics of ferroelectric poly(vinylidene fluoride-co-trifluoroethylene) thin films [J].
Kim, Yunseok ;
Kim, Wooyoung ;
Choi, Hyunwoo ;
Hong, Seungbum ;
Ko, Hyungsoo ;
Lee, Heechul ;
No, Kwangsoo .
APPLIED PHYSICS LETTERS, 2010, 96 (01)
[10]   Origin of surface potential change during ferroelectric switching in epitaxial PbTiO3 thin films studied by scanning force microscopy [J].
Kim, Yunseok ;
Bae, Changdeuck ;
Ryu, Kyunghee ;
Ko, Hyoungsoo ;
Kim, Yong Kwan ;
Hong, Seungbum ;
Shin, Hyunjung .
APPLIED PHYSICS LETTERS, 2009, 94 (03)
12