@article{AhnertAbelKolloscheetal.2011,
  author    = {Ahnert, Karsten and Abel, Markus and Kollosche, Matthias and Jorgensen, Per Jorgen and Kofod, Guggi},
  title     = {Soft capacitors for wave energy harvesting},
  series = {Journal of materials chemistry},
  volume    = {21},
  journal   = {Journal of materials chemistry},
  number    = {38},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {0959-9428},
  doi       = {10.1039/c1jm12454d},
  pages     = {14492 -- 14497},
  year      = {2011},
  abstract  = {Wave energy harvesting could be a substantial renewable energy source without impact on the global climate and ecology, yet practical attempts have struggled with the problems of wear and catastrophic failure. An innovative technology for ocean wave energy harvesting was recently proposed, based on the use of soft capacitors. This study presents a realistic theoretical and numerical model for the quantitative characterization of this harvesting method. Parameter regions with optimal behavior are found, and novel material descriptors are determined, which dramatically simplify analysis. The characteristics of currently available materials are evaluated, and found to merit a very conservative estimate of 10 years for raw material cost recovery.},
  language  = {en}
}
@article{VukicevicVukovicStoyanovetal.2012,
  author    = {Vukicevic, Radovan and Vukovic, Ivana and Stoyanov, Hristiyan and Korwitz, Andreas and Pospiech, Doris and Kofod, Guggi and Loos, Katja and ten Brinke, Gerrit and Beuermann, Sabine},
  title     = {Poly(vinylidene fluoride)-functionalized single-walled carbon nanotubes for the preparation of composites with improved conductivity},
  series = {Polymer Chemistry},
  volume    = {3},
  journal   = {Polymer Chemistry},
  number    = {8},
  publisher = {Royal Society of Chemistry},
  address   = {Cambridge},
  issn      = {1759-9954},
  doi       = {10.1039/c2py20166f},
  pages     = {2261 -- 2265},
  year      = {2012},
  abstract  = {The surface of single-walled carbon nanotubes (SWCNTs) was functionalized with azide-terminated poly(vinylidene fluoride) (PVDF). Functionalization was confirmed by dispersibility, Raman spectroscopy, and thermogravimetric analyses. Raman spectra show disordering of the SWCNTs, thus, strongly suggesting that PVDF was covalently attached to SWCNTs. Functionalized SWCNTs were mixed with commercially available PVDF in a twin-screw extruder and thin films were obtained by melt-pressing. Films containing 0.5 and 1 wt\% PVDF-functionalized SWCNTs exhibited significantly improved electrical conductivity compared to PVDF films containing pristine SWCNTs.},
  language  = {en}
}