Xunlin Qiu, Axel Mellinger, and Reimund Gerhard
"Influence of gas pressure in the voids during charging on the piezoelectricity of ferroelectrets"
Applied Physics Letters 92, 052901, 3pp. (2008).
O. Voronina, M. Wegener, W. Wirges, R. Gerhard, L. Zirkel, and H. Münstedt
"Physical foaming of fluorinated ethylene-propylene (FEP) copolymers in supercritical carbon dioxide: single film fluoropolymer piezoelectrets"
Applied Physics A: Materials Science & Processing 90, 615-618 (2008).
Peng Fang, Werner Wirges, Michael Wegener, Larissa Zirkel and Reimund Gerhard
"Cellular polyethylene-naphthalate films for ferroelectret applications: foaming, inflation and stretching, assessment of electromechanically relevant structural features"
E-Polymers 2008, no. 043 ISSN 1618-7229 (2008).
Guggi Kofod
"The static actuation of dielectric elastomer actuators: how does pre-stretch improve actuation?"
Journal of Physics D: Applied Physics 41, (2008) 215405(11pp).
Xunlin Qiu and Reimund Gerhard
Applied Physics Letters 93, 152902, 3pp. (2008)
A. V. Solnyshkin, M. Wegener, W. Künstler, and R. Gerhard-Multhaupt
"Anomalies of Dielectric Properties of Vinylidene Fluoride-Trifluorethylene Copolymer Films"
Physics of the Solid State 50 (3), pp. 562-567 (2008).
A. V. Solnyshkin, D. A. Kiselev, A. A. Bobomolov, A. L. Kholkin, W. Künstler, and R. Gerhard
"Atomic Force Microscopy Study of Ferroelectric Films of P(VDF-TrFE) Copolymer and Composites Based on It"
Journal of Surfacee Investigation - X-Ray Synchrotron and Neutron Techniques 2, pp. 692-695 (2008).
Axel Mellinger, Rosaura Flores-Suárez, Rajeev Singh, Michael Wegener, Werner Wirges, Reimund Gerhard, and Sidney B. Lang
"Thermal-Pulse Tomography of Space-charge and Polarization Distributions in Electret Polymers"
Int J Thermophys 29, 2046-2054, DOI 10.1007/s10765-008-0532-8 (2008).
B. J. Mokross, M. Kollosche, T. Ruscher, G. Kofod, and R. Gerhard
"Thermodynamic modeling of pyroelectric and piezoelectric properties of cellular polymers"
Physical Review B 78, 235407, DOI: 10.1103/PhysRevB.78.235407 (2008).
H. Stoyanov, G. Kofod and R. Gerhard
"A co-axial dielectric elastomer actuator"
Advances in Science and Technology 61, 81-84 (2008).
G. Kofod
"Finite-strain models of actuation: prestretch and elasticity parameters"
Advances in Science and Technology 61, 91-100 (2008).
G. Kofod and P. Sommer-Larsen
"Compliant electrodes: solutions, materials and technologies"
"Finite-elasticity models of actuation"
zwei Buchkapitel erschienen in: "Dielectric elastomers as electromechanical transducers",
F. Carpi, D. de Rossi, R. Kornbluh, R. Pelrine, P. Sommer-Larsen (Ed.),
( Elsevier, 2008, ISBN: 978-0-08-047488-5) (2008).