2026-05-20T05:02:32Z https://rodare.hzdr.de/oai2d

oai:rodare.hzdr.de:2484 2024-08-12T07:23:01Z openaire_data user-rodare user-elbe user-pelbe

Attallah, Ahmed Gamal Bon, Volodymyr Maity, Kartik Hirschmann, Eric Butterling, Maik Wagner, Andreas Kaskel, Stefan 2023-09-20 Positron lifetime data for in situ humidity measurements https://rodare.hzdr.de/record/2484 10.14278/rodare.2484 oai:rodare.hzdr.de:2484 doi:10.17815/jlsrf-2-58 doi:10.1021/acsami.3c10974 url:https://www.hzdr.de/publications/Publ-37568 url:https://www.hzdr.de/publications/Publ-37567 doi:10.14278/rodare.2483 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode MOFs DUT-67 positron annihilation lifetime spectroscopy sorption mechanism water harvesting Data publication: Unravelling the water adsorption mechanism in hierarchical MOFs: insights from in situ positron annihilation lifetime studies info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:2666 2025-04-07T13:37:37Z openaire_data user-matter user-rodare user-elbe user-pelbe

Banhart, John Yang, Zi Guo, Qianning Liu, Meng Butterling, Maik Liedke, Maciej Oskar Hirschmann, Eric Wagner, Andreas 2023-08-24 Experimentdaten der Positronen-Annihilationsspektroskopie https://rodare.hzdr.de/record/2666 10.14278/rodare.2666 oai:rodare.hzdr.de:2666 eng doi:10.17815/jlsrf-2-58 doi:10.1002/adem.202300490 url:https://www.hzdr.de/publications/Publ-38490 url:https://www.hzdr.de/publications/Publ-38489 doi:10.14278/rodare.2665 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/matter url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode positron annihilation lifetime spectroscopy Al-Mg alloy ageing vacancy Data publication: In Situ Heating Positron Annihilation Lifetime Spectroscopy Experiments on an Al–Mg Alloy info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:2324 2024-08-12T07:23:22Z openaire_data user-rodare user-elbe user-pelbe

Attallah, Ahmed G. Prucnal, Slawomir Butterling, Maik Hirschmann, Eric Koehler, Nicole Schulz, S. E. Wagner, Andreas Liedke, Maciej Oskar 2023-06-06 Research data of Millisecond Flash Lamp Curing for Porosity Generation in Thin Films https://rodare.hzdr.de/record/2324 10.14278/rodare.2324 oai:rodare.hzdr.de:2324 doi:10.17815/jlsrf-2-58 doi:10.1038/s41598-023-34748-x url:https://www.hzdr.de/publications/Publ-37073 url:https://www.hzdr.de/publications/Publ-36933 doi:10.14278/rodare.2323 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Data publication: Millisecond Flash Lamp Curing for Porosity Generation in Thin Films info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:3327 2024-12-11T16:18:52Z openaire_data user-elbe user-matter user-pelbe user-rodare

Wilflingseder, Christoph Aberl, Johannes Prado Navarrete, Enrique Hesser, Guenter Groiss, Heiko Liedke, Maciej Oskar Butterling, Maik Wagner, Andreas Hirschmann, Eric Corley-Wiciak, Cedric Zoellner, Marvin Capellini, Giovanni Fromherz, Thomas Brehm, Moritz 2024-12-11 The data set consists of the raw and analysis data. Positron annihilation lifetime spectroscopy depth profiles were measured at the positron ELBE during the PI beamtime on November 2023 (POS23203233). MBE deposited Ge layers at temperatures of 100°C - 350°C have been evaluated concerning defect microstructure. The most dominant defect, namely Ge vacancy, has been evidenced independently on the temperature conditions. The results support the main claim of the manuscript, feasibility of the low temperature growth approach to Ge. https://rodare.hzdr.de/record/3327 10.14278/rodare.3327 oai:rodare.hzdr.de:3327 eng doi:10.17815/jlsrf-2-58 url:https://www.hzdr.de/publications/Publ-40173 url:https://www.hzdr.de/publications/Publ-40037 doi:10.14278/rodare.3326 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/matter url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Germanium defects positron annihilation spectroscopy MBE low temperature growth Ge-vacancy Data publication: Ge epitaxy at ultra-low growth temperatures enabled by a pristine growth environment info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:2858 2024-08-16T08:11:18Z openaire_data user-rodare user-elbe user-pelbe

Magrin Maffei, R. Butterling, Maik Liedke, Maciej Oskar D'Addato, S. Di Bona, A. Bertoni, G. Gazzadi, G. C. Mariazzi, S. Wagner, Andreas Brusa, R. S. Benedetti, S. 2024-05-08 Positronen-Lebensdauer-Messungen gewonnen an der Positronen-Strahlanlage MePS (pELBE), August 2023 Doppler-Verbreiterungs-Messungen gewonnen an der Positronen-Strahlanlage SPONSOR (pELBE), September 2023 https://rodare.hzdr.de/record/2858 10.14278/rodare.2858 oai:rodare.hzdr.de:2858 eng doi:10.17815/jlsrf-2-58 url:https://www.hzdr.de/publications/Publ-39072 url:https://www.hzdr.de/publications/Publ-39069 doi:10.14278/rodare.2857 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/closedAccess Positron Annihilation MePS SPONSOR AZO AlZnO PALS VEPALS VEPAS Data publication: Defectivity of Al:ZnO Thin Films with Different Crystalline Order Probed by Positron Annihilation Spectroscopy info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:1766 2024-08-12T07:26:03Z openaire_data user-rodare user-elbe user-pelbe

Irimiciuc, Stefan Andrei Chertopalov, Sergii Volfová, Lenka Hruska, Petr Cizek, Jakub Vondracek, Martin Novotny, Michal Butterling, Maik Liedke, Maciej Oskar Wagner, Andreas 2022-07-04 Positron annihilation lifetime spectroscopy data from beamtime at ELBE https://rodare.hzdr.de/record/1766 10.14278/rodare.1766 oai:rodare.hzdr.de:1766 doi:10.17815/jlsrf-2-58 url:https://www.hzdr.de/publications/Publ-34879 url:https://www.hzdr.de/publications/Publ-34880 doi:10.14278/rodare.1765 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode pulsed laser deposition copper oxide defects in situ plasma monitoring Data publication: Tailoring pulsed laser deposition fabricated copper oxide film by controlling plasma parameters info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:2088 2024-08-12T07:23:43Z openaire_data user-rodare user-elbe user-pelbe

Yismaw, Shewaye Wenze, Marianne Attallah, Ahmed Gamal Zaleski, Radek Matysik, Jörg Poppitz, David Gläser, Roger Ebbinghaus, Stefan G. Enke, Dirk 2023-01-16 In the current study, a core-shell structured material of MCM-48-type mesoporous silica nanoparticles (MSNs) and cross-linked poly(N-isopropylacrylamide) homopolymer and its copolymer with methacrylic acid was synthesized. The polymer was preferentially grafted on the outer surface of silane linker-functionalized MSNs based on free radical polymerization. The successful chemical grafting of the polymer on the silica surface was confrmed by FTIR, NMR, TG, and elemental analyses. The polymer contents of the hybrid particles vary from 18 to 40 % as determined by thermogravimetric and elemental analyses. The polymer content was tailored by varying diferent reaction parameters including monomer concentration, linker content/type, and reaction time. Well-defned uniform core-shell structured spherical particles with an average particle size of 367 ± 25 nm and shell thickness of 29 ± 8 nm were observed in TEM analysis. According to XRD and nitrogen physisorption studies, the ordered mesopore structure of the core MCM-48-type MSNs was maintained after an extended polymer grafting process and surface coverage with a high content of polymer. No signifcant pore blockage was observed in porosimetry analysis. More than 75% of specifc surface area, 68% of total pore volume, and the mean mesopore diameter were retained after successful grating of polymer on the outer silica surface. The pore volume thus can provide enough space to encapsulate high contents of cargo molecules for applications. The narrow pore width distribution of the main mesopores of silica determined by PALS analysis corresponds to the N2 sorption analysis and further confrms the uniformity of the mesopores. https://rodare.hzdr.de/record/2088 10.14278/rodare.2088 oai:rodare.hzdr.de:2088 doi:10.17815/jlsrf-2-58 doi:10.1007/s11051-022-05666-2 url:https://www.hzdr.de/publications/Publ-36269 url:https://www.hzdr.de/publications/Publ-36268 doi:10.14278/rodare.2087 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode MCM-48-type mesoporous silica nanoparticles Hybrid material Core-shell structure Polymer Grafting Synthesis Data publication: Core-shell structured MCM-48-type silica-polymer hybrid material synthesis and characterization info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:3361 2025-04-08T09:47:15Z openaire_data user-pelbe user-rodare user-elbe

Tosca, Marco Skorvankova, Katerina Hirschmann, Eric Liedke, Maciej Oskar Wagner, Andreas 2024-12-01 This dataset comprises positron annihilation lifetime spectra, data on the implantation energy used, as well as the results of the analysis (including the determined positron lifetimes and free volume). For all samples, whether they are included in the upcoming publication or not. https://rodare.hzdr.de/record/3361 10.14278/rodare.3361 oai:rodare.hzdr.de:3361 doi:10.17815/jlsrf-2-58 url:https://www.hzdr.de/publications/Publ-40382 url:https://www.hzdr.de/publications/Publ-41194 doi:10.14278/rodare.3360 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/restrictedAccess Positron Annihilation Free Volume green energy polymer laser-driven proton-boron fusion Positron Data Publication: Boron/hydrocarbon plasma polymer nanofuels for green energy generation via laser-driven proton-boron fusion info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:3426 2025-01-22T13:58:57Z openaire_data openaire_data openaire_data openaire_data openaire_data openaire_data openaire_data openaire_data openaire_data openaire_data user-rodare user-elbe user-pelbe

Liedke, Maciej Oskar Menéndez, Enric Keeble, David J. Čížek, Jakub 2025-01-21 Positron annihilation spectroscopy (PAS) is a precise probe of point defects in bulk and nanomaterials, e.g., thin films. Positrons localize predominantly in the neutral and negatively charged open volume defects, i.e., vacancies and their agglomerations, extended defects, pores. The time to the inevitable annihilation of the positron with electron depends on the local electron density and scales proportionally with the open volume size. In insulators containing pores, Positronium (Ps) formation is enabled, so that the lifetime of the resulting ortho-Ps population again scales proportionally with pore size. Employing mono-energetic positron beams enables the study of near-surface buried defects. Positrons pre-accelerated to a given kinetic energy are implanted into solids following the so-called Makhov distribution [Fig. 1b]. Once localized in a defect, the positron lifespan increases and the overlap of the positron density with the core electron density is reduced. As a consequence, the Doppler shift of annihilation gamma rays becomes smaller. These characteristics are measured using two major techniques, namely positron annihilation lifetime spectroscopy (PALS) and coincidence Doppler broadening spectroscopy (cDBS or cDB-PAS), respectively. The analysis of the positron lifetime spectra [Fig. 2a] enables a decomposition into exponential components characterized by lifetime (ti) and intensity (Ii), which can be translated into defect type/size and concentration. Whereas the shape analysis of the broadened 511 keV annihilation spectrum provides insights to positron annihilation with low momentum valence electrons and high momentum core electrons. The latter determines the local chemical environment of positron annihilation sites (Fig. 2b), which is relevant for characterization of fusion materials. Here we present the research data for figures 1b, 2a, and 2b. https://rodare.hzdr.de/record/3426 10.14278/rodare.3426 oai:rodare.hzdr.de:3426 doi:10.17815/jlsrf-2-58 url:https://www.hzdr.de/publications/Publ-40799 url:https://www.hzdr.de/publications/Publ-40798 doi:10.14278/rodare.3425 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode functional materials positron annihilation spectroscopy operando experiments Data publication: Roadmap on Advanced/operando characterisation of solid state materials and devices for energy applications - Positron annihilation spectroscopy info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:2076 2024-08-12T07:25:42Z openaire_data user-rodare user-elbe user-pelbe

Zotovich, Alexey I. Zyryanov, Sergey M. Lopaev, Dmitry V. Rezvanov, Askar A. Attallah, Ahmed Gamal Liedke, Maciej Oskar Butterling, Maik Bogdanova, Maria A. Vishnevskiy, Alexey S. Seregin, Dmitry S. Vorotyntsev, Dmitry A. Vorotyntsev Palov, Alexander P. Hirschmann, Eric Wagner, Andreas Naumov, Sergej Vorotilov, Konstantin A. Rakhimova, Tatyana V. Rakhimov, Alexander T. R. Baklanov, Mikhail 2023-01-11 Modification of spin-on-deposited porous PMO (periodic mesoporous organosilica) ultralow-k (ULK) SiCOH films (k = 2.33) containing both methyl terminal and methylene bridging groups by vacuum ultraviolet (VUV) emission from Xe plasma is studied. The temporal evolution of chemical composition, internal defects, and morphological properties (pore structure transformation) is studied by using Fourier transform infrared spectroscopy, in situ laser ellipsometry, spectroscopic ellipsometry, ellipsometric porosimetry (EP), positron-annihilation lifetime spectroscopy (PALS), and Doppler broadening positron-annihilation spectroscopy. Application of the different advanced diagnostics allows making conclusions on the dynamics of the chemical composition and pore structure. The time frame of the VUV exposure in the current investigation can be divided into two phases. During the first short phase, film loses almost all of its surface methyl and matrix bridging groups. An increase of material porosity due to removal of methyl groups with simultaneous matrix shrinkage is found by in situ ellipsometry. The removal of bridging bonds leads to an increase of matrix intrinsic porosity. Nevertheless, when the treated material is exposed to the ambient air, the sizes of micro- and mesopores and pores interconnectivity decrease with the VUV exposure time according to PAS and EP data. The last is the result of the additional film shrinkage caused by atmosphere exposure. During the second phase the increase of mesopore size is detected by both EP and PAS. The increase of mesopore size goes all the time as it is expected from in situ ellipsometry, but it is masked by the air exposure. https://rodare.hzdr.de/record/2076 10.14278/rodare.2076 oai:rodare.hzdr.de:2076 doi:10.17815/jlsrf-2-58 doi:10.1021/acsaelm.2c00281 url:https://www.hzdr.de/publications/Publ-36205 url:https://www.hzdr.de/publications/Publ-35036 doi:10.14278/rodare.2075 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode ultralow-k materials vacuum ultraviolet emission porosimetry positron-annihilation spectroscopy in situ ellipsometry Data publication: Modification of Porous Ultralow‑k Film by Vacuum Ultraviolet Emission info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:3830 2025-06-27T09:18:30Z openaire_data openaire_data openaire_data openaire_data openaire_data openaire_data user-elbe user-matter user-pelbe user-rodare

Cai, Yihui Begin, Dominique Lefevre, Christophe Sidhoum, Charles Elkaim, Erik Boulet, Pascal Desgardin, Pierre Barthe, Marie-France Helm, Ricardo Egger, Werner Butterling, Maik Wagner, Andreas Papaefthimiou, Vasiliki Zafeiratos, Spiros Cianferani, Damien Mager, Loic Ersen, Ovidiu Corbel, Catherine Sanchez, Clément Begin-Colin, Sylvie 2025-06-24 Positron annihilation lifetime spectra obtained for several samples of ELBE proposal POS23203237. https://rodare.hzdr.de/record/3830 10.14278/rodare.3830 oai:rodare.hzdr.de:3830 doi:10.17815/jlsrf-2-58 doi:10.1002/sstr.202500066 url:https://www.hzdr.de/publications/Publ-41529 url:https://www.hzdr.de/publications/Publ-41526 doi:10.14278/rodare.3829 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/matter url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode perovskite positron positron annihilation lifetime spectroscopy synthesis Data publication: Enhanced Electromagnetic Wave Absorption in Mapbi3 Hybrid Perovskite Through a Defect-Tunable Green Synthesis info:eu-repo/semantics/other dataset

oai:rodare.hzdr.de:3359 2025-01-13T07:33:02Z openaire_data user-pelbe user-rodare user-elbe

Majstorović, Filip Hirschmann, Eric Butterling, Maik Elsherif, Ahmed Gamal Attallah Wagner, Andreas Jakes, Joseph E. 2024-11-01 This dataset comprises positron annihilation lifetime spectra, data on the relative humidity used, as well as the results of the analysis (including the determined positron lifetimes and free volume). https://rodare.hzdr.de/record/3359 10.14278/rodare.3359 oai:rodare.hzdr.de:3359 eng url:https://www.hzdr.de/publications/Publ-40380 url:https://www.hzdr.de/publications/Publ-40381 doi:10.14278/rodare.3358 url:https://rodare.hzdr.de/communities/elbe url:https://rodare.hzdr.de/communities/pelbe url:https://rodare.hzdr.de/communities/rodare info:eu-repo/semantics/restrictedAccess Positron Annihilation Free Volume Cell Wall Wood Water Biopolymer Data publication on positrons as micro probes to study Water-Dependent Free Volume of Wood Cell Walls: A Preliminary Study info:eu-repo/semantics/other dataset