Oriented polyvinylidene fluoride–trifluoroethylene (P(VDF–TrFE)) films by Langmuir–Blodgett deposition: A synchrotron X-ray diffraction study

Lindemann, W. R.; Philiph, R. L.; Chan, D. W. W.; Ayers, C. T.; Perez, E. M.; Beckman, S. P.; Strzalka, J.; Chaudhary, S.; Vaknin, D.

doi:10.1039/c5cp04307g

Title: Oriented polyvinylidene fluoride–trifluoroethylene (P(VDF–TrFE)) films by Langmuir–Blodgett deposition: A synchrotron X-ray diffraction study

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Abstract

Langmuir–Blodgett films of polyvinylidene fluoride trifluoroethylene – P(VDF–TrFE)-copolymers possess substantially improved electrocaloric and pyroelectric properties, when compared with conventionally spin-cast films. In order to rationalize this, we prepared single-layered films of P(VDF–TrFE) (70:30) using both deposition techniques. Grazing incidence wide-angle X-ray scattering (GIWAXS), reveals that Langmuir–Blodgett deposited films have a higher concentration of the ferroelectric β-phase crystals, and that these films are highly oriented with respect to the substrate. Based on these observations, we suggest alternative means of deposition, which may substantially enhance the electrocaloric effect in P(VDF–TrFE) films. As a result, this development has significant implications for the potential use of P(VDF–TrFE) in solid-state refrigeration.

Authors:

Lindemann, W. R. ^[1]; Philiph, R. L. ^[2]; Chan, D. W. W. ^[3]; Ayers, C. T. ^[3]; Perez, E. M. ^[3]; Beckman, S. P. ^[4]; Strzalka, J. ^[5]; Chaudhary, S. ^[3]; Vaknin, D. ^[6]

Iowa State Univ., Ames, IA (United States); Ames Lab., Ames, IA (United States); Massachusetts Institute of Technology, Cambridge, MA (United States)
Iowa State Univ., Ames, IA (United States); Univ. of Washington, Seattle, WA (United States)
Iowa State Univ., Ames, IA (United States)
Iowa State Univ., Ames, IA (United States); Washington State Univ., Pullman, WA (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)

Publication Date:: Wed Oct 07 00:00:00 EDT 2015

Research Org.:: Ames Lab., Ames, IA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1227426

Report Number(s):: IS-J-8847
Journal ID: ISSN 1463-9076; PPCPFQ

Grant/Contract Number:: DMR-1105641; AC02-06CH11357; AC02-07CH11358

Resource Type:: Accepted Manuscript

Journal Name:: Physical Chemistry Chemical Physics. PCCP (Print)

Additional Journal Information:: Journal Name: Physical Chemistry Chemical Physics. PCCP (Print); Journal Volume: 17; Journal Issue: 43; Journal ID: ISSN 1463-9076

Publisher:: Royal Society of Chemistry

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Lindemann, W. R., Philiph, R. L., Chan, D. W. W., Ayers, C. T., Perez, E. M., Beckman, S. P., Strzalka, J., Chaudhary, S., and Vaknin, D. Oriented polyvinylidene fluoride–trifluoroethylene (P(VDF–TrFE)) films by Langmuir–Blodgett deposition: A synchrotron X-ray diffraction study.  United States: N. p., 2015. 
Web.  doi:10.1039/c5cp04307g.

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                    Lindemann, W. R., Philiph, R. L., Chan, D. W. W., Ayers, C. T., Perez, E. M., Beckman, S. P., Strzalka, J., Chaudhary, S., & Vaknin, D. Oriented polyvinylidene fluoride–trifluoroethylene (P(VDF–TrFE)) films by Langmuir–Blodgett deposition: A synchrotron X-ray diffraction study.  United States.  https://doi.org/10.1039/c5cp04307g

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                    Lindemann, W. R., Philiph, R. L., Chan, D. W. W., Ayers, C. T., Perez, E. M., Beckman, S. P., Strzalka, J., Chaudhary, S., and Vaknin, D. Wed .  
"Oriented polyvinylidene fluoride–trifluoroethylene (P(VDF–TrFE)) films by Langmuir–Blodgett deposition: A synchrotron X-ray diffraction study".  United States.  https://doi.org/10.1039/c5cp04307g.  https://www.osti.gov/servlets/purl/1227426.

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@article{osti_1227426,

  title        = {Oriented polyvinylidene fluoride–trifluoroethylene (P(VDF–TrFE)) films by Langmuir–Blodgett deposition: A synchrotron X-ray diffraction study},

  author       = {Lindemann, W. R. and Philiph, R. L. and Chan, D. W. W. and Ayers, C. T. and Perez, E. M. and Beckman, S. P. and Strzalka, J. and Chaudhary, S. and Vaknin, D.},

  abstractNote = {Langmuir–Blodgett films of polyvinylidene fluoride trifluoroethylene – P(VDF–TrFE)-copolymers possess substantially improved electrocaloric and pyroelectric properties, when compared with conventionally spin-cast films. In order to rationalize this, we prepared single-layered films of P(VDF–TrFE) (70:30) using both deposition techniques. Grazing incidence wide-angle X-ray scattering (GIWAXS), reveals that Langmuir–Blodgett deposited films have a higher concentration of the ferroelectric β-phase crystals, and that these films are highly oriented with respect to the substrate. Based on these observations, we suggest alternative means of deposition, which may substantially enhance the electrocaloric effect in P(VDF–TrFE) films. As a result, this development has significant implications for the potential use of P(VDF–TrFE) in solid-state refrigeration.},

  doi          = {10.1039/c5cp04307g},

  journal      = {Physical Chemistry Chemical Physics. PCCP (Print)},

  number       = 43,

  volume       = 17,

  place        = {United States},

  year         = {Wed Oct 07 00:00:00 EDT 2015},

  month        = {Wed Oct 07 00:00:00 EDT 2015}

}

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