@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{SchuermannKochImperiaetal.1999,
  author    = {Sch{\"u}rmann, H. and Koch, Norbert and Imperia, Paolo and Schrader, Sigurd and Jandke, M. and Strohriegl, P. and Schulz, Burkhard and Leising, G. and Brehmer, Ludwig},
  title     = {Ultraviolet photoelectron spectroscopic study of heterocyclic model compounds for electroluminescent devices},
  year      = {1999},
  language  = {en}
}
@article{SchraderVismantsDietzeletal.1999,
  author    = {Schrader, Sigurd and Vismants, Z. and Dietzel, Birgit and Flueraru, C. and Prescher, Dietrich and Reiche, J{\"u}rgen and Motschmann, H. and Brehmer, Ludwig},
  title     = {Linear and nonlinear optical properties of Langmuir-Blodgett multilayers from chromophore-containing maleic acid anhydride polymers},
  year      = {1999},
  language  = {en}
}
@article{ReicheFreydankHelmsetal.1999,
  author    = {Reiche, J{\"u}rgen and Freydank, Anke-Christine and Helms, Andreas and Geue, Thomas and Schulz, Burkhard and Brehmer, Ludwig and Stiller, Burkhard and Knochenhauer, Gerald},
  title     = {Vacuum deposition films of oxadiazole compounds : formation and structure investigation},
  year      = {1999},
  abstract  = {The search for alternative routes of organic thin film formation is stimulated by the outstanding properties of these films in such fields as nonlinear optics, photonic data processing and molecular electronics. The formation of highly ordered multilayer structures by thermal vacuum deposition (VD) of organic compounds is an essential step toward the application of supramolecular organic architectures in technical systems. The VD of an amphiphilic substituted 2,5- diphenylene-1,3,4-oxadiazole 1 onto silicon substrates at defined temperature was used for the formation of ultrathin films. The structural data obtained for the VD-films of oxadiazole 1 by means of X-ray reflectivity, X-ray grazing incidence diffraction and atomic force microscopy (AFM) investigations indicate the formation of well ordered oxadiazole multilayers. The structure of the VD-multilayers is compared with that of Langmuir-Blodgett (LB) films and thermally treated LB-multilayers prepared from the same compound.},
  language  = {en}
}
@article{KnochenhauerPenacoradaReicheetal.1999,
  author    = {Knochenhauer, Gerald and Penacorada, Florencio and Reiche, J{\"u}rgen and Brehmer, Ludwig and Tredgold, Richard H. and Barberka, Thomas Andreas},
  title     = {Multilayers of perfluorinated fatty acids},
  year      = {1999},
  abstract  = {We have formed Y layers of perfluorododecanoic acid CF3(CF2)10COOH by thermal evaporation in vacuo and of perfluorotetradecanoic acid CF3(CF2)12COOH by thermal evaporation and by the Langmuir-Blodgett (LB) technique. We have obtained the bilayer spacing of both these materials by X-ray diffraction and have also studied the in-plane structure of these materials by means of grazing incidence diffraction (GID). Computer modelling was used to interpret the results obtained. For the perfluorododecanoic acid, we find two stable untwisted phases at 25°C and a combination of these two predicts both the Bragg peaks arising from the layer structure and the GID results. Our experimental results show that the perfluorotetradecanoic acid exists in the generally accepted helical structure. Computer modelling leads to the conclusion that closely packed perfluorinated chains with 12 or less carbon atoms should exist in an untwisted state while molecules having more than 12 carbon atoms show the onset of the helical conformation.},
  language  = {en}
}
@article{HoepfnerHehlBrehmer1999,
  author    = {H{\"o}pfner, Ulf and Hehl, H. and Brehmer, Ludwig},
  title     = {Preparation of ordered thin gold films},
  year      = {1999},
  language  = {en}
}
@article{GustinaMarkavaMuzikanteetal.1999,
  author    = {Gustina, D. and Markava, E. and Muzikante, I. and Stiller, Burkhard and Brehmer, Ludwig},
  title     = {Photoisomerisation process of self-assembled monolayers of some novel azobenzenes},
  year      = {1999},
  language  = {en}
}
@article{GieblerSchulzReicheetal.1999,
  author    = {Giebler, Rainer and Schulz, Burkhard and Reiche, J{\"u}rgen and Brehmer, Ludwig and W{\"u}hn, Mario and W{\"o}ll, Christoph and Smith, Andrew Phillip and Urquhart, Steven G. and Ade, Harald W. and Unger, Wolfgang E. S.},
  title     = {Near-edge x-ray absorption fine structure spectroscopy on ordered films of an amphiphilic derivate of 2,5- Diphenyl-1,3,4-oxadiazole},
  year      = {1999},
  abstract  = {The surfaces of ordered films formed from an amphiphilic derivative of 2,5-diphenyl-1,3,4-oxadiazole by the Langmuir-Blodgett (LB) technique and organic molecular beam deposition (OMBD) were investigated by the use of near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. For the assignment of the spectral features of the C, N, and O K- edge absorption spectra, fingerprint spectra of poly(p-phenylene terephthalamide)(Kevlar), poly(ethylene terephthalate), poly(p-phenylene-1,3,4-oxadiazole), and 2,5-di- (pentadecyl)-1,3,4-oxadiazole, which contain related chemical moieties, were recorded. Ab initio molecular orbital calculations, performed with explicit treatment of the core hole, are used to support the spectral interpretations. Angle-resolved NEXAFS spectroscopy at the C, N, and O K-edges suggests a preferentially upright orientation of the oxadiazole derivative in the outermost layer of the films. X-ray specular reflectivity data and molecular modeling results suggest a similar interpretation.},
  language  = {en}
}
@article{FruebingWegenerGerhardetal.1999,
  author    = {Fr{\"u}bing, Peter and Wegener, Michael and Gerhard, Reimund and Buchsteiner, Alexandra and Neumann, Werner and Brehmer, Ludwig and Dietel, Reinhard},
  title     = {Pyroelectric properties and dielectric hysteresis of a poly(vinylalcohol) with azobenzene alkoxy side chains},
  year      = {1999},
  language  = {en}
}
@article{FruebingWegenerGerhardetal.1999,
  author    = {Fr{\"u}bing, Peter and Wegener, Michael and Gerhard, Reimund and Buchsteiner, Alexandra and Neumann, Werner and Brehmer, Ludwig},
  title     = {Different molecular mechanisms for the dielectric hysteresis and pyroelectricity in a poly(vinyl alcohol) with azobenzene-alkoxy side chains},
  issn      = {0277-786X},
  year      = {1999},
  abstract  = {By means of pyroelectrical measurements and dielectric spectroscopy as well as structural information from differential scanning calorimetry, it is shown that, in a poly(vinyl alcohol) with azobenzene-alkoxy side chains, pyroelctricity and dielectric hysteresis which are usually related to each other have different origins. The pyroelectric effect is explained with reversible dipole-density changes upon thermal expansion, whereas the dielectric hysteresis is proposed to result from a charge-carrier polarisation.},
  language  = {en}
}
@article{EnglischPenacoradaBrehmeretal.1999,
  author    = {Englisch, Uwe and Penacorada, Florencio and Brehmer, Ludwig and Pietsch, Ullrich},
  title     = {X-ray and neutron reflection analysis of the structure and the molecular exchange process in simple and complex fatty acid salt Langmuir-Blodgett multilayers},
  year      = {1999},
  language  = {en}
}
@article{Brehmer1999,
  author    = {Brehmer, Ludwig},
  title     = {Ultrathin films for senorics and molecular electronics},
  isbn      = {3-540-65487-9},
  year      = {1999},
  language  = {en}
}