Polarization from dielectric-barrier discharges in ferroelectrets: Mapping of the electric-field profiles by means of thermal-pulse tomography

Xunlin Qiu; Holländer, Lars; Suárez, Rosaura Flores; Wirges, Werner; Gerhard, Reimund
August 2010
Applied Physics Letters;8/16/2010, Vol. 97 Issue 7, p072905
Academic Journal
A polymer-ferroelectret system is fabricated by attaching two uniform polycarbonate films to a grid produced from double-sided adhesive tape by means of computer-controlled laser cutting. The openings of the grid structure result in well-defined voids inside the three-layer system, which can be internally charged through dielectric barrier discharges. The negatively charged internal void surfaces can be made visible by means of xerographical toner, and the electric-field distribution inside such ferroelectrets can be studied with thermal-pulse tomography. Both techniques exhibit polarization patterns that are consistent with the grid structure. Possible reasons for the observed non-uniform charge distributions are discussed.


Related Articles

  • The effect of annealing time on thermally stimulated discharge current of corona-charged ethyl cellulose. Gaur, Mulayam; Singh, Reeta; Singh, Pramod; Indolia, Ajay; Singh, Ranjit // Journal of Thermal Analysis & Calorimetry;Feb2011, Vol. 103 Issue 2, p679 

    Short circuit thermally stimulated discharge current (TSDC) has been recorded in corona-charged ethyl cellulose foil samples at different annealing time. An analysis of the data reveals significant changes in the TSDC curves of the samples as a function of annealing time. The possible relaxation...

  • Forces, charges, and light emission during the rupture of adhesive contacts. Miura, Takashi; Chini, Michael; Bennewitz, Roland // Journal of Applied Physics;Nov2007, Vol. 102 Issue 10, p103509 

    Pulling forces and light emission have been recorded simultaneously while rupturing the contact between 1/16 in. balls and adhesive tape. The force curve reveals the formation of glue filaments between the tape and the balls. Multiple light flashes originating in air discharge from the rupturing...

  • ASSEMBLY: TAPE IT.  // Automotive Design & Production;Nov2005, Vol. 117 Issue 11, p42 

    Provides information on the GS Series tape from MACtac Technical Products. Use of the tape as a replacement for mechanical fasteners; Use of the tape in several materials, including polyethylene and extruded polymers; Ability of the tape to serve as a sealant.

  • Getting no static from polymers. Hardwick // Product Design & Development;Jul99, Vol. 54 Issue 7, p46 

    Focuses on designers' use of polymer chemistry to control electrostatic discharge (ESD). Most predictable characteristic of ESD; Utilization of anti-static surfactants or fillers; Creation of a network of interconnecting particles within the polymer compound.

  • Miniaturization Little by Little. Klaver, Eric // SMT: Surface Mount Technology;Apr2013, Vol. 28 Issue 4, p50 

    The push for smaller and smaller components seems to be a never-ending process. How can manufacturers deal with such devices?

  • Applications of polymer electrets for pollution studies. Pillai, P. K. C.; Khurana, Paramdeep // Applied Physics Letters;5/2/1988, Vol. 52 Issue 18, p1540 

    The analysis and identification of the pollutants sticking onto the surfaces of electrets prepared from polymethylmethacrylate and polytetrafluoroethylene have been done by scanning electron microscopic, mass spectrometric, and near infrared spectrophotometric techniques. Electret samples...

  • Poled polymers for sensors and photonic applications. Bauer, Siegfried // Journal of Applied Physics;11/15/1996, Vol. 80 Issue 10, p5531 

    Presents a survey of the electrical and optical properties of poled polymer electrets for sensors and photonic applications. Polymer systems and their electrical and optical properties; Poling techniques; Methods for experimental investigation.

  • Low-dielectric-constant cross-linking polymers: Film electrets with excellent charge stability. Schwodiauwer, Reinhard; Neugschwandtner, Gerhard S.; Bauer-Gogonea, Simona; Bauer, Siegfried // Applied Physics Letters;12/20/1999, Vol. 75 Issue 25, p3998 

    Details a study on film electrets with excellent charge stability, such as cross-linking low-dielectric-constant polymers benzocyclobutene (BCB) and perfluorocyclobutene (PFCB). Preparation of BCB and PFCB on substrates by spin coating; Onset of molecular motion at the high- and low-temperature...

  • 3M CELEBRATES CREATION OF VINYL ELECTRICAL TAPE.  // Electrical Wholesaling;Feb2007, Vol. 88 Issue 2, p17 

    The article reports on 3M Electrical Markets Division's promotion which takes a look back at the nineteen forties to recall the company's invention of vinyl electrical tape. Scotch electrical tape, which has evolved over the years to Scotch Super 33+, is 60 years old and is the only vinyl...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics