# Publications database

 2019-11-1309:49 [PUBDB-2019-04190] Book/Report/Dissertation / PhD Thesis Marchetti, B. Characterization of Ultrashort Electron Bunches at the SINBAD-ARES Linac [DESY-THESIS-2019-026] Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS 176 pp. (2019) [10.3204/PUBDB-2019-04190] = Dissertation, Universität Hamburg, 2019   The generation of ultrashort electron bunches is an active area of research in accelerator physics. A key application of such bunches is the injection into novel accelerators with high-frequency accelerating fields, such as laser-wakefield plasma accelerators or dielectric laser accelerators. [...] OpenAccess: MarxThesis - PDF PDF (PDFA); desy-thesis-19-026.title - PDF PDF (PDFA); 2019-11-1215:10 [PUBDB-2019-04168] Report/Journal Article et al Modelling the coincident observation of a high-energy neutrino and a bright blazar flare [arXiv:1807.04275] Nature astronomy 3(1), 88 - 92 (2019) [10.1038/s41550-018-0610-1]   In September 2017, the IceCube Neutrino Observatory recorded a very-high-energy neutrino in directional coincidence with a blazar in an unusually bright gamma-ray state, TXS0506 + 056 (refs1,2). Blazars are prominent photon sources in the Universe because they harbour a relativistic jet whose radiation is strongly collimated and amplified. [...] Published on 2018-11-05. Available in OpenAccess from 2019-05-05.: PDF; Restricted: PDF PDF (PDFA); 2019-11-1117:20 [PUBDB-2019-04134] Journal Article et al Effect of Solvent Additives on the Morphology and Device Performance of Printed Nonfullerene Acceptor Based Organic Solar Cells ACS applied materials & interfaces 45(11), 42313-42321 (2019) [10.1021/acsami.9b16784]   Printing of active layers of high-eﬃciency organic solar cells and morphology control by processing with varying solvent additive concentrations are important to realize realworld use of bulk-heterojunction photovoltaics as it enables both up-scaling and optimization of the device performance. In this work, active layers of the conjugated polymer with benzodithiophene units PBDB-T-SF and the nonfullerene small molecule acceptor IT-4F are printed using meniscus guided slot-die coating. [...] Restricted: acsami.9b16784-1 - PDF PDF (PDFA); supporting information - PDF PDF (PDFA); External link: Fulltext 2019-11-1116:11 [PUBDB-2019-04124] Journal Article et al Relationship between structure and molecular interactions in monolayers of specially designed aminolipids Nanoscale advances 1(9), 3529 - 3536 (2019) [10.1039/C9NA00355J]   Artificial cationic lipids are already recognized as highly efficient gene therapy tools. Here, we focus on another potential use of aminolipids, in their electrically-uncharged state, for the formation of covalently cross-linked, one-molecule-thin films at interfaces. [...] OpenAccess: PDF PDF (PDFA); 2019-11-1115:59 [PUBDB-2019-04123] Journal Article et al Low-temperature luminescence spectrum of forbidden $4f^{13} 5d‐4f^{14}$ transitions in $CaF_2:Lu^{3+}$ crystal Magnetic resonance in solids 21(4), 1-7 (2019) [10.26907/mrsej-19413]   $Lu^{3+}$ + $4f^{13} 5d‐4f^{14}$ luminescence in $CaF_2:Lu^{3+}$ crystal at 8 K was studied with a high spectral resolution using synchrotron radiation excitation. Absence of a zero-phonon line in the recorded spectrum was explained and features in the recorded spectrum were reproduced by simulation based on the microscopic model of electron-phonon interaction and the developed theory of non-Condon spectra.. OpenAccess: PDF PDF (PDFA); External link: Fulltext 2019-11-1115:59 [PUBDB-2019-04122] Journal Article et al Characterizing transmissive diamond gratings as beam splitters for the hard X-ray single-shot spectrometer of the European XFEL Journal of synchrotron radiation 26(3), 708 - 713 (2019) [10.1107/S1600577519003382]   The European X-ray Free Electron Laser (EuXFEL) offers intense, coherent femtosecond pulses, resulting in characteristic peak brilliance values a billion times higher than that of conventional synchrotron facilities. Such pulses result in extreme peak radiation levels of the order of terawatts cm−2 for any optical component in the beam and can exceed the ablation threshold of many materials. [...] 2019-11-1115:51 [PUBDB-2019-04119] Journal Article et al Sensitization of luminescence from $Sm^{3+}$ ions in fluoride hosts $K_2YF_5$ and $K_2GdF_5$ by doping with $Tb^{3+}$ ions Journal of luminescence 209, 340 - 345 (2019) [10.1016/j.jlumin.2018.12.057]   Spectroscopic properties and energy transfer mechanisms for isostructural fluoride $K_2YF_5$ and $K_2GdF_5$ crystals singly and doubly doped with different concentrations of $Tb^{3+}$ and $Sm^{3+}$ ions have been investigated under excitation in the deep ultraviolet (DUV) and vacuum UV (VUV) spectral regions. In these hosts luminescence of $Sm^{3+}$ ions is enhanced under DUV excitation by doping with $Tb^{3+}$ ions, namely, the $Sm^{3+}$ excitation spectra show additional intense excitation in the region of $Tb^{3+}$ spin-allowed 4f – 5d transitions at 200–220 nm due to energy transfer from $Tb^{3+}$ to Sm3+. [...] Restricted: PDF PDF (PDFA); External link: Fulltext 2019-11-1115:01 [PUBDB-2019-04112] Journal Article et al Interfacial premelting of ice in nano composite materials Physical chemistry, chemical physics 21(7), 3734 - 3741 (2019) [10.1039/C8CP05604H]   The interfacial premelting in ice/clay nano composites was studied by high energy X-ray diffraction. Below the melting point of bulk water, the formation of liquid water was observed for the ice/vermiculite and ice/kaolin systems. [...] OpenAccess: PDF PDF (PDFA); 2019-11-1111:55 [PUBDB-2019-04080] Journal Article et al Trends in Synthesis, Crystal Structure, and Thermal and Magnetic Properties of Rare-Earth Metal Borohydrides Inorganic chemistry 58(9), 5503 - 5517 (2019) [10.1021/acs.inorgchem.8b03258]   Synthesis, crystal structures, and thermal and magnetic properties of the complete series of halide-free rare-earth (RE) metal borohydrides are presented. A new synthesis method provides high yield and high purity products. [...] 2019-11-1111:53 [PUBDB-2019-04079] Journal Article et al Cation ordering, ferrimagnetism and ferroelectric relaxor behavior in $Pb(Fe_{1−x}Sc_{x})_{2∕3}W_{1∕3}O_{3}$ solid solutions Ceramic samples of the multiferroic perovskite Pb(Fe1−xScx)2∕3W1∕3O3 with 0 ≤ x ≤ 0.4 have been synthesized using a conventional solid-state reaction method, and investigated experimentally and theoretically using first-principle calculations. Rietveld analyses of joint synchrotron X-ray and neutron diffraction patterns show the formation of a pure crystalline phase with cubic (Fm3̅m) structure with partial ordering in the B-sites [...] Fulltext: PDF PDF (PDFA);