@article{SchulzStillerZetzscheetal.1994,
  author    = {Schulz, Burkhard and Stiller, Burkhard and Zetzsche, Thomas and Knochenhauer, Gerald and Dietel, Reinhard and Brehmer, Ludwig},
  title     = {Crystal structure of 2,5-Di(4- methoxycarbonyl-phenyl)-1,3,4-oxadiazole characterized by AFM and IR- spectroscopy},
  year      = {1994},
  language  = {en}
}
@article{MercerMcKenzieBrumaetal.1994,
  author    = {Mercer, Frank W. and McKenzie, M. and Bruma, Maria and Schulz, Burkhard},
  title     = {Synthesis and properties of fluorinated polyimides and fluorinated poly(imide-amide)s containing pendent cyano groups},
  year      = {1994},
  language  = {en}
}
@article{SchulzKnochenhauerBrehmeretal.1994,
  author    = {Schulz, Burkhard and Knochenhauer, Gerald and Brehmer, Ludwig and Janietz, Silvia},
  title     = {Stuctures and properties of aromatic poly(1,3,4-oxadiazole)s},
  year      = {1994},
  language  = {en}
}
@article{BrumaMercerSchulzetal.1994,
  author    = {Bruma, Maria and Mercer, Frank W. and Schulz, Burkhard and Dietel, Reinhard and Fitch, J. and Cassidy, Peter},
  title     = {Study of crosslinking process in fluorinated poly(imide-amide)s containing pendant cyano groups},
  year      = {1994},
  language  = {en}
}
@article{BrumaMercerSchulzetal.1994,
  author    = {Bruma, Maria and Mercer, Frank W. and Schulz, Burkhard and Dietel, Reinhard and Fitch, J. and Cassidy, Peter},
  title     = {Study of crosslinking process in fluorinated poly(imide-amide)s containing pendant cyano groups},
  year      = {1994},
  language  = {en}
}
@article{BrumaMercerSchulzetal.1994,
  author    = {Bruma, Maria and Mercer, Frank W. and Schulz, Burkhard and Dietel, Reinhard and Neumann, Werner},
  title     = {Fluorinated poly(benzoxazole-imide)s},
  year      = {1994},
  language  = {en}
}
@article{BrumaSchulzMercer1994,
  author    = {Bruma, Maria and Schulz, Burkhard and Mercer, Frank W.},
  title     = {Synthesis and characterization of fluorinated poly(imide-pyridazine- amide)s},
  year      = {1994},
  language  = {en}
}
@article{JanietzSchulz1994,
  author    = {Janietz, Silvia and Schulz, Burkhard},
  title     = {Electrochemical studies on thin films of poly(arylene-1,3,4-oxadiazole)s},
  year      = {1994},
  language  = {en}
}
@article{SchulzJanietz1994,
  author    = {Schulz, Burkhard and Janietz, Silvia},
  title     = {Electrochemical studies on thin films of poly(arylene 1,3,4-oxadiazole)s},
  year      = {1994},
  language  = {en}
}
@article{Schulz1994,
  author    = {Schulz, Burkhard},
  title     = {Eine neue Synthesevariante f{\"u}r aromatische Poly(1,3,4-oxadiazole)},
  year      = {1994},
  language  = {de}
}
@article{Schulz1994,
  author    = {Schulz, Burkhard},
  title     = {Neue thermostabile Polyheterocyclen},
  year      = {1994},
  language  = {de}
}
@article{Schulz1994,
  author    = {Schulz, Burkhard},
  title     = {New aspects of the solid-state structures and electrochemical properties of aromatic Poly(1,3,4- Oxadiazole)s},
  year      = {1994},
  language  = {en}
}
@article{Schulz1994,
  author    = {Schulz, Burkhard},
  title     = {Struktur und Eigenschaften d{\"u}nner Schichten aus aromatischen Poly(1,3,4- oxadiazol)en},
  year      = {1994},
  language  = {de}
}
@article{ReicheFreydankDietzeletal.1995,
  author    = {Reiche, J{\"u}rgen and Freydank, A. and Dietzel, Birgit and Katholy, Stefan and Knochenhauer, Gerald and Zetzsche, Thomas and Schulz, Burkhard and Brehmer, Ludwig},
  title     = {Komplexe Strukturanalytik von Oxadiazol-Mono- und Multischichten},
  year      = {1995},
  language  = {de}
}
@article{BrehmerDietzelFreydanketal.1995,
  author    = {Brehmer, Ludwig and Dietzel, Birgit and Freydank, Anke-Christine and Katholy, Stefan and Knochenhauer, Gerald and Reiche, J{\"u}rgen and Schulz, Burkhard and Zetzsche, Thomas},
  title     = {Langmuir- und Langmuir-Blodgett-Filme amphiphiler Oxadiazole},
  year      = {1995},
  language  = {de}
}
@article{OkatovaLavrenkoFedotovetal.1995,
  author    = {Okatova, Olga V. and Lavrenko, Peter N. and Fedotov, Y. A. and Schulz, Burkhard},
  title     = {Polyelectrolyte behavior of some new polyheteroarylene derivatives in sulfuric acid},
  year      = {1995},
  language  = {en}
}
@article{SavaSchulzZhuetal.1995,
  author    = {Sava, Ion and Schulz, Burkhard and Zhu, Shigen and Bruma, Maria},
  title     = {Synthesis and characterization of new silicon-containing poly(arylene-1,3,4-oxadiazole)s},
  issn      = {0954-0083},
  doi       = {10.1088/0954-0083/7/4/011},
  year      = {1995},
  language  = {en}
}
@article{SchulzBrehmerDietzeletal.1995,
  author    = {Schulz, Burkhard and Brehmer, Ludwig and Dietzel, Birgit and Zetzsche, Thomas},
  title     = {Preparation and characterization of ordered thin films based on aromatic poly(1,3,4-oxadiazole)s},
  year      = {1995},
  language  = {en}
}
@article{SchulzKnochenhauerBrehmeretal.1995,
  author    = {Schulz, Burkhard and Knochenhauer, Gerald and Brehmer, Ludwig and Janietz, Silvia},
  title     = {Stuctures and properties of aromatic poly(1,3,4-oxadiazole)s},
  year      = {1995},
  language  = {en}
}
@article{SchulzStillerZetzscheetal.1995,
  author    = {Schulz, Burkhard and Stiller, Burkhard and Zetzsche, Thomas and Knochenhauer, Gerald and Dietel, Reinhard and Brehmer, Ludwig},
  title     = {Characterization of 2,5-di(p-tolyl-1,3,4- oxadiazole) crystals by IR-spectroscopy and atomic force microscopy},
  year      = {1995},
  language  = {en}
}
@article{BauerSchulzBrehmeretal.1995,
  author    = {Bauer, J. and Schulz, Burkhard and Brehmer, Ludwig and B{\"o}tcher, M. and Jagdhold, U. and H{\"o}ppner, K. and Kulesch, A. and Dietzel, Birgit},
  title     = {Anwendung von Langmuir-Blodgett-Schichten als Resist f{\"u}r die Niederspannungs-Elektronenstrahl-Lithografie},
  year      = {1995},
  language  = {de}
}
@article{BrumaSchulzMercer1995,
  author    = {Bruma, Maria and Schulz, Burkhard and Mercer, Frank W.},
  title     = {Polyamide copolymers containing hexafluoroisopropylidene groups},
  year      = {1995},
  language  = {en}
}
@article{SchulzBrehmer1995,
  author    = {Schulz, Burkhard and Brehmer, Ludwig},
  title     = {Preparation and characterization of ordered thin films based on aromatic poly(1,3,4-oxadiazole)s},
  year      = {1995},
  language  = {en}
}
@article{SchulzJanietz1995,
  author    = {Schulz, Burkhard and Janietz, Silvia},
  title     = {Preparation and characterization of thin films containing aromatic poly(1,3,4- oxadiazole)s},
  year      = {1995},
  language  = {en}
}
@article{Schulz1995,
  author    = {Schulz, Burkhard},
  title     = {Structure and properties of thin polyoxadiazole films},
  year      = {1995},
  language  = {en}
}
@article{SchulzBrehmerKnochenhauer1995,
  author    = {Schulz, Burkhard and Brehmer, Ludwig and Knochenhauer, Gerald},
  title     = {Supramolecular structures of aromatic 1,3,4-oxadiazole solids},
  year      = {1995},
  language  = {en}
}
@article{JanietzSchulz1995,
  author    = {Janietz, Silvia and Schulz, Burkhard},
  title     = {Elektrochemische Untersuchungen an aromatischen Poly(1,3,4-oxadiazol)en},
  year      = {1995},
  language  = {de}
}
@article{LavrenkoStrelinaOkatovaetal.1996,
  author    = {Lavrenko, Peter N. and Strelina, Irina A. and Okatova, Olga V. and Schulz, Burkhard},
  title     = {Orientation of naphthylene ring in the new poly(naphthylen-1,3,4-oxadiazole)s molecules},
  year      = {1996},
  language  = {en}
}
@article{BrumaHamciucHamciucetal.1996,
  author    = {Bruma, Maria and Hamciuc, Corneliu and Hamciuc, Elena and Mercer, Frank W. and Belomoina, Nataliya and Schulz, Burkhard},
  title     = {Heterocyclic polyamides containing hexafluoroisopropylidene groups},
  year      = {1996},
  language  = {en}
}
@article{BrumaHamciucSavaetal.1996,
  author    = {Bruma, Maria and Hamciuc, Corneliu and Sava, Ion and Hamciuc, Elena and Mercer, Frank W. and Fritzsche, P. and Schulz, Burkhard},
  title     = {High temperature polyamides containing pendant imide groups},
  year      = {1996},
  language  = {en}
}
@article{ZhuSchulzBrumaetal.1996,
  author    = {Zhu, Shigen and Schulz, Burkhard and Bruma, Maria and Brehmer, Ludwig},
  title     = {Comparative study of the thermal properties of related aromatic polyhydrazides and poly(1,3,4-oxadiazole)s},
  issn      = {1042-7147},
  doi       = {10.1002/(SICI)1099-1581(199612)7:12<879::AID-PAT600>3.0.CO;2-X},
  year      = {1996},
  language  = {en}
}
@article{HamciucSchulzBruma1996,
  author    = {Hamciuc, Corneliu and Schulz, Burkhard and Bruma, Maria},
  title     = {New polyhydrazides and polyoxadiazoles containing pendent phenoxy groups},
  year      = {1996},
  language  = {en}
}
@article{JanietzSchulz1996,
  author    = {Janietz, Silvia and Schulz, Burkhard},
  title     = {Electrochemical investigation on poly(arylene-1,3,4-oxadiazole)s},
  year      = {1996},
  language  = {en}
}
@article{OkatovaAndreevaSchulz1996,
  author    = {Okatova, Olga V. and Andreeva, Katharina A. and Schulz, Burkhard},
  title     = {Thermal hydrolytic degradation of polyoxadiazole derivatives},
  year      = {1996},
  language  = {en}
}
@article{Schulz1996,
  author    = {Schulz, Burkhard},
  title     = {Herstellung und Charakterisierung geordneter ultrad{\"u}nner Poly(arylen- 1,3,4-oxadiazol) Schichten},
  year      = {1996},
  language  = {de}
}
@article{HamciucHamciucBrumaetal.1997,
  author    = {Hamciuc, Elena and Hamciuc, Corneliu and Bruma, Maria and Stoleriu, Andre and Schulz, Burkhard},
  title     = {Poly(hydrazide-ester)s and poly(1,3,4-oxadiazole-ester)s containing pendent phenoxy groups},
  year      = {1997},
  abstract  = {A series of new arornatic poly(hydrazide-ester)s has been synthesized by solution polycondensation of two diacid dichlorides containing preformed ester groups with phenoxyterephthaloyl dihydrazide or with a mixture of phenoxyterephthaloyl dihydrazide with terephthaloyl- or isophthaloyl dihydrazide in N-methyl-2-pyrrolidinone. The thermal cyclization of the poly(hydrazide-ester)s gave the corresponding poly(1,3,4-oxadiazole-ester)s containing pendent phenoxy groups. The polymers were characterized by viscometry, solubility measurements, IR spectroscopy, differential scanning calorimetry and thermogravimetric analysis.},
  language  = {en}
}
@article{OrgzallLorenzMikatetal.1997,
  author    = {Orgzall, Ingo and Lorenz, Bernd and Mikat, J{\"u}rgen E. R. and Dietel, Reinhard and Knochenhauer, Gerald and Schulz, Burkhard},
  title     = {Raman and IR spectroscopic investigation of aromatic 1,3,4-oxadiazole polymers and oligomers},
  year      = {1997},
  abstract  = {The molecular structure of poly(p-phenylene-1,3,4-oxadiazole) (POD) is investigated using i.r. and Raman spectroscopy. Both methods reveal characteristic differences for the a- and b-POD forms that are most obvious in the spectral region between 1500 and 1650 cm-1. The spectra for dimer and tetramer compounds already show the same features as found for longer chains. Based on molecular modelling calculations these differences are assigned to cis and trans conformations of the main chain segments. High pressure measurements show a linear shift of the Raman lines and support the result of the thermodynamic stability of the trans conformation.},
  language  = {en}
}
@article{SchulzStillerZetzscheetal.1997,
  author    = {Schulz, Burkhard and Stiller, Burkhard and Zetzsche, Thomas and Knochenhauer, Gerald and Brehmer, Ludwig},
  title     = {Characterization of crystals based on 1,3,4-oxadiazoles by atomic force microscopy},
  year      = {1997},
  abstract  = {The surface structures of crystals based on aromatic oxadiazoles were investigated by AFM. The crystal structure for 2,5-di(p-tolyl)-1,3,4-oxadiazole (DTO) differs from that of 2,5-di (4-methoxycarbonyl-phenyl)-1,3,4- oxadiazole (DMPO). In DMPO all molecules show parallel orientation to the surface in such a way that the surface is formed as well as by the nitrogen atoms of the heterocyclic rings and the methyl groups of the ester substituents. By contrast, the oxadiazole molecules in DTO crystals are oriented perpendicular to the crystal surface. The experimental data are interpreted by molecular modelling. It is shown that there is a difference between molecular structure of the surface, as detected by AFM, and the bulk structure determined by X-ray diffraction.},
  language  = {en}
}
@article{ReicheZetzscheHelmsetal.1997,
  author    = {Reiche, J{\"u}rgen and Zetzsche, Thomas and Helms, Andreas and Freydank, Anke-Christine and Knochenhauer, Gerald and Schulz, Burkhard and Brehmer, Ludwig},
  title     = {Organized molecular films of oxadiazole compounds formed by vacuum deposition},
  year      = {1997},
  language  = {en}
}
@article{SchulzBrumaBrehmer1997,
  author    = {Schulz, Burkhard and Bruma, Maria and Brehmer, Ludwig},
  title     = {Aromatic poly(1,3,4-oxadiazole)s as advanced materials},
  year      = {1997},
  abstract  = {Poly(1,3,4-oxadiazole)s have been the focus of considerable interest with regard to the- production of high- performance materials, particularly owing to their high thermal stability in oxidative atmosphere and specific properties determined by the structure of 1,3,4-oxadiazole ring, which, from the spectral and electronic points of view, is similar to a p-phenylene structure.[1] Besides their excellent resistance to high temperature, polyoxadiazoles have many desirable characteristics, such as good hydrolytic stability, high glass transition temperatures, low dielectric constants, and tough mechanical properties. Some polyoxadiazoles have semiconductive properties, other structures can be electrochemically doped and thus made conductive, and other have liquid-crystalline properties, which make them very attractive for a wide range of high-performance applications. They exhibit excellent fiber- and film-forming capabilities, thus being considered for use as heat-resistant reinforcing fibers for advanced composite materials, highly resistant fabrics for the filtration of hot gases, special membranes for gas separation or reverse osmosis, precursors for highly oriented graphite fibers, films, and blocks to be used in the construction of electronic instruments based on X-rays, neutron beams, or a-particles, or in the construction of nuclear reactor walls. Since they were first reported in 1961,[2] a wide variety of polymers containing 1,3,4-oxadiazole rings have been synthesized, and their preparation, characterization, and physico-mechanical properties have been periodically reviewed .[3-8] This article will present a general overview of this class of polymers and will refer to the work carried out by different researchers in the last ten years with the emphasis on the potential uses of such polymers as advanced materials.},
  language  = {en}
}
@article{SavaSzesztayBrumaetal.1997,
  author    = {Sava, Ion and Szesztay, Marta and Bruma, Maria and Mercer, Frank W. and Schulz, Burkhard},
  title     = {Compared properties of aromatic polyamides containing silicon in the chain},
  year      = {1997},
  abstract  = {Two series of aromatic polyamides incorporating silicon together with phenylquinoxaline or with hexafluoroisopropylidene groups have been synthesized and their properties have been characterized and compared with those of related polymers. These polymers are easily soluble in polar amidic solvents such as N-rnethyl-2-pyrrolidinone and dimethylformamide, and in tetrahydrofuran, and can be cast into thin, transparent films from solution. The polyamides have weight- and number-average molecular weights in the range of 10000-40000 and 3000-6000, respectively, and polydispersities in the range of 3-10. They show glass transition temperatures in the range of 236 °C-275 °C and decomposition temperatures above 400 °C. The polymer films have low dielectric constants in the range of 3.26-3.68, and good mechanical properties (tensile strength 74-100 MPa, tensile modulus 180-386 MPa), thus being comparable with other high performance dielectrics.},
  language  = {en}
}
@article{LavrenkoSchulzStrelinaetal.1997,
  author    = {Lavrenko, Peter N. and Schulz, Burkhard and Strelina, Irina A. and Okatova, Olga V.},
  title     = {Synthesis and molecular properties of new poly(naphthalene-1,3,4-oxadiazole)s},
  year      = {1997},
  abstract  = {Poly[(1,4-naphthalene)-2,5-diyl-1,3,4-oxadiazole] and poly[(2,6-naphthalene)-2,5-diyl-1,3,4-oxadiazole] have been synthesized and investigated in conc. H2S04, by the flow birefringence method in comparison with poly(1,4- phenylene)-2,5-diyl-1,3,4-oxadiazole]. Changes in conformation parameters and optical anisotropy of a chain unit induced by incorporation of the naphthalene groups into the macromolecule backbone have been evaluated.},
  language  = {en}
}
@article{BrumaHamciucHamciucetal.1997,
  author    = {Bruma, Maria and Hamciuc, Corneliu and Hamciuc, Elena and Mercer, Frank W. and Belomoina, Nataliya and Schulz, Burkhard},
  title     = {Heterocyclic polyamides containing hexafluoroisopropylidene groups},
  year      = {1997},
  abstract  = {New heterocyclic polyamides have been synthesized by solution polycondensation of aromatic diamines containing phenyl- quinoxaline units with diacid chlorides having both imide and hexafluoroisopropylidene (6F) groups. These polymers are soluble in polar aprotic solvents, such as N-methylpyrrolidone (NMP) or N,N-dimethylformamide (DMF), and can be cast into flexible thin films from solutions. They show high thermooxidative stability with decomposition temperatures above 400°C and glass transition temperatures in the range of 225 - 300°C. The polymer films exhibit good chemical resistance towards deluted acids and good electrical insulating properties with dielectric constants in the range of 3.2 - 3.7.},
  language  = {en}
}
@article{LavrenkoStrelinaSchulz1997,
  author    = {Lavrenko, Peter N. and Strelina, Irina A. and Schulz, Burkhard},
  title     = {Dynamo-optical properties of poly(naphthylene oxadiazole)s in sulfuric acid},
  year      = {1997},
  abstract  = {Flow birefringence induced in dilute solutions of poly[(1,4-naphthylene)-2,5-diyl-1,3,4-oxadiazole] and poly[2,6-naphthylene)-2,5-diyl-1,3,4-oxadiazole] in conc. sulphuric acid has been investigated. The shear optical coefficient was found for these polymers to be approximately double the value of that obtained in the same solvent for poly[(para-phenylene) -2,5-diyl-1,3,4-oxadiazole]. Rigid-chain behaviour of the polymers was characterized by hydrodynamic and dynamo-optical parameters evaluated with application of the worm-like chain model and the "method of similar structures". Change in optical anisotropy of a chain unit induced by incorporation of naphthylene groups into the main chain has been evaluated.},
  language  = {en}
}
@article{SchulzKaminorzBrehmer1997,
  author    = {Schulz, Burkhard and Kaminorz, Yvette and Brehmer, Ludwig},
  title     = {New aromatic poly(1,3,4-oxadiazole)s for light emitting diodes},
  year      = {1997},
  abstract  = {New aromatic poly(1,3,4-oxadiazole)s were synthesized having excellent film forming properties due to their solubility in common organic solvents. The investigated new polyoxadiazoles can be used as emission material in single layer LED. The poly- oxadiazoles show an emission in the range of blue to yellow light. The external quantum efficiency as well as the turn-on voltage of the devices are influenced when blends of the polyoxadiazole with hole transport materials are used.},
  language  = {en}
}
@article{SavaBrumaSchulzetal.1997,
  author    = {Sava, Ion and Bruma, Maria and Schulz, Burkhard and Mercer, Frank W. and Belomoina, Nataliya},
  title     = {Synthesis and Properties of Silicon-containing Polyamides},
  year      = {1997},
  abstract  = {A series of aromatic polyamides incorporating silicon together with phenylquinoxaline or with hexafluoroisopropylidene groups has been synthesized by solution polycondensation of a silicon-containing diacid chloride with aromatic diamines having phenylquinoxaline rings or hexafluoroisopropylidene groups. These polymers are easily soluble in polar aprotic solvents, such as N-methylpyrrolidinone and dimethylformamide, and in tetrahydrofurane, and can be solution-cast into thin, transparent films having low dielectric constant, in the range of 3.26 to 3.68. These polymers show high thermal stability with decomposition temperature being above 400 °C and glass transition temperature in the range of 236 °C to 275 °C.},
  language  = {en}
}
@phdthesis{Schulz1997,
  author    = {Schulz, Burkhard},
  title     = {Entwicklung aromatischer Poly(1,3,4-oxadiazo)e zu Funktionsmaterialien : Beitr{\"a}ge durch chemische Modifizierung und supramolekulare Strukturierung},
  address   = {Potsdam},
  pages     = {getr. Z{\"a}hl.: graph. Darst.},
  year      = {1997},
  language  = {de}
}
@article{ReicheSchulzKnochenhaueretal.1997,
  author    = {Reiche, J{\"u}rgen and Schulz, Burkhard and Knochenhauer, Gerald and Dietzel, Birgit and Freydank, Anke-Christine and Zetzsche, Thomas and Brehmer, Ludwig},
  title     = {Supramolecular structures formed from heterocyclic aromatic molecules},
  year      = {1997},
  abstract  = {This paper describes the formation and structure investigation of Langmuir monolayers and Langmuir-Blodgett multilayers formed from amphiphilic derivatives of 2,5-diphenyl-1,3,4-oxadiazole. The 2,5-diphenyl-1,3,4-oxadiazole group as a functional unit with interesting physical and chemical properties is maintained, while the head group, the length of the alkyl chain and the structure of the coupling unit between aromatic and aliphatic part of these linear short-chain amphiphiles is systematically varied in order to explore the influence of this change on the film forming properties and the stability of Langmuir and Langmuir-Blodgett films. Molecular mechanics simulations are shown by these systematic variations to be suitable for the prediction of optimal chemical structures allowing for a stable stratified molecular packing. The combination of a detailed structure investigation of the multilayers based on scanning force microscopy and X-ray data with molecular mechanics simulations yields an insight into the packing of the molecules and the intermolecular interactions.},
  language  = {en}
}
@article{FreydankJanietzSchulz1998,
  author    = {Freydank, Anke-Christine and Janietz, Silvia and Schulz, Burkhard},
  title     = {Synthesis and electrochemical behaviour of Amphiphilic 1,3,4-Oxadiazole derivatives},
  year      = {1998},
  language  = {en}
}
@article{FreydankJanietzSchulz1998,
  author    = {Freydank, Anke-Christine and Janietz, Silvia and Schulz, Burkhard},
  title     = {Synthesis and electrochemical characterization of new amphiphilic 1,3,4-oxadiazoles},
  year      = {1998},
  abstract  = {The electrochemical behaviour of new amphiphilic 1,3,4-oxadiazoles were studied by cyclic voltammetry. The influence of the supra- molecular structure on the redox behaviour in liquid or solid solutions, in Langmuir-Blodgett multilayers, and in amorphous films is investigated in detail. The reversible reduction of amphiphilic 2,5-diarylene- 1,3,4-oxadiazoles is significantly influenced by substituents in the para position of the phenylene ring. In the solid states the reduction peak potentials are shifted to more negative values compared to data measured in solution. This shift increases as the film thickness is increased. An influence of the supramolecular order in the solid films was not found. In-situ UV-vis spectroelectrochemistry of LB-multilayers deposited onto indium tin oxide (ITO) glass give evidence for the formation of radical anions in the highly ordered layer.},
  language  = {en}
}