@article{StillerKoepnickMuzikanteetal.1999,
  author    = {Stiller, Burkhard and K{\"o}pnick, Thomas and Muzikante, I. and Neilands, O. and Utinans, M. and Dubrovich, O. and Karageorgiev, Peter and Brehmer, Ludwig},
  title     = {Optically induced switching effect of polymer containing indandione-1,3-pyridinium betaine side chains},
  issn      = {0378-2271},
  year      = {1999},
  language  = {en}
}
@article{MuzikanteFonavsTokmakovetal.2005,
  author    = {Muzikante, I. and Fonavs, E. and Tokmakov, A. and Cepite, D. and Stiller, Burkhard and Brehmer, Ludwig and Neilands, O.},
  title     = {Optical and electrical properties of oriented thin films of oligomer containing betaine-type moiety in side chain},
  issn      = {0370-1972},
  year      = {2005},
  abstract  = {Non-linear optical and electrical properties of polymer films obtained by dipole orientation of active units are reported. Novel polar oligomer with N-(indan-1,3-dion-2-yl)pyridinium betaine (IPB) as a side group is studied. Orientation of polar groups in oligomer thin films causes an increase of the photo-induced change of surface potential on irradiation in the region of photo-induced electron transfer (PIET) where the IPB group exhibits a reversible change of the value and sign of the dipole moment. At longer wavelengths, the value of the surface potential of the oligomer may be determined by transport of photo-generated charge carriers},
  language  = {en}
}