Keppler, Angela; Marschewski, Marcel; Himmerlich, Marcel; Ahmed, Syed Imad-Uddin; Schäfer, Jürgen A.; Pachomow, Evgenij; Maus-Friedrichs, Wolfgang; Höfft, Oliver; Endres, Frank; Krischok, Stefan
Changes of the near-surface chemical composition of the [EMIM]Tf 2 N room temperature ionic liquid under the influence of irradiation. - In: DPG spring meeting of the Condensed Matter Section with the divisions: Biological Physics, Chemical and Polymer Physics, Dielectric Solids, Dynamics and Statistical Physics, Low Temperature Physics, Magnetism, Metal and Material Physics, Semiconductor Physics, Surface Science, Thin Films, Vacuum Science and Technology as well as the working groups: Industry and Business, Physics of Socio-Economic Systems, 2009, CPP 39.31
Changes of the near-surface chemical composition of the [EMIM]Tf 2 N room temperature ionic liquid under the influence of irradiation. - In: DPG spring meeting of the Condensed Matter Section with the divisions: Biological Physics, Chemical and Polymer Physics, Dielectric Solids, Dynamics and Statistical Physics, Low Temperature Physics, Magnetism, Metal and Material Physics, Semiconductor Physics, Surface Science, Thin Films, Vacuum Science and Technology as well as the working groups: Industry and Business, Physics of Socio-Economic Systems, 2009, CPP 39.31
In some applications room temperature Ionic Liquids (RT-ILs) are exposed to different kinds of irradiation. Using the low vapour pressures of RT-ILs, we studied the influence of irradiation on the surface properties under UHV conditions by photoelectron spectroscopy and Metastable Induced Electron Spectroscopy. We present the effect of irradiation by electrons and photons with energies ranging from a few eV to several keV on the surface composition of [EMIM]Tf2N and its valence band structure. Our results indicate a strong reduction of the carbon content during keV-electron irradiation as well as other compositional changes. The changes of the film composition are correlated with changes in the valence band structure as a function of irradiation energy. X-ray irradiation with high exposures cause also variations in chemical composition of the [EMIM]Tf2N.
Himmerlich, Marcel; Koufaki, Maria; Ecke, Gernot; Mauder, Christof; Cimalla, Volker; Schäfer, Jürgen A.; Kondilis, Antonis; Pelekanos, Nikos T.; Modreanu, Mircea; Krischok, Stefan
Effect of annealing on the properties of indium-tin-oxynitride films as ohmic contacts for GaN-based optoelectronic devices. - In: ACS applied materials & interfaces, ISSN 1944-8252, Bd. 1 (2009), 7, S. 1451-1456
http://dx.doi.org/10.1021/am900138f
Effect of annealing on the properties of indium-tin-oxynitride films as ohmic contacts for GaN-based optoelectronic devices. - In: ACS applied materials & interfaces, ISSN 1944-8252, Bd. 1 (2009), 7, S. 1451-1456
http://dx.doi.org/10.1021/am900138f
Himmerlich, Marcel; Eisenhardt, Anja; Schäfer, Jürgen A.; Krischok, Stefan
PAMBE growth and in-situ characterisation of clean (2 × 2) and (&worte;3 × &worte;3) R30˚ reconstructed InN(0001) thin films. - In: Physica status solidi, ISSN 1521-3951, Bd. 246 (2009), 6, S. 1173-1176
http://dx.doi.org/10.1002/pssb.200880817
PAMBE growth and in-situ characterisation of clean (2 × 2) and (&worte;3 × &worte;3) R30˚ reconstructed InN(0001) thin films. - In: Physica status solidi, ISSN 1521-3951, Bd. 246 (2009), 6, S. 1173-1176
http://dx.doi.org/10.1002/pssb.200880817
Hänsel, Thomas; Comouth, Andreas; Lorenz, Pierre; Ahmed, Syed Imad-Uddin; Krischok, Stefan; Zydziak, Nicolas; Kauffmann, Axel; Schäfer, Jürgen A.
Pyrolysis of cellulose and lignin. - In: Applied surface science, Bd. 255 (2009), 18, S. 8183-8189
http://dx.doi.org/10.1016/j.apsusc.2009.05.047
Pyrolysis of cellulose and lignin. - In: Applied surface science, Bd. 255 (2009), 18, S. 8183-8189
http://dx.doi.org/10.1016/j.apsusc.2009.05.047
Hums, Christoph; Bläsing, Jürgen; Lorenz, Pierre; Krischok, Stefan; Bertram, Frank; Franke, Alexander; Schäfer, Jürgen A.; Christen, Jürgen; Krost, AloisGadanecz, Aniko; Gadanecz, Aniko *1982-*; Dadgar, Armin
AlInN/GaN based multi quantum well structures - growth and optical properties. - In: Physica status solidi, ISSN 1610-1642, Bd. 6.2009, S2, S. S451-S454
http://dx.doi.org/10.1002/pssc.200880899
AlInN/GaN based multi quantum well structures - growth and optical properties. - In: Physica status solidi, ISSN 1610-1642, Bd. 6.2009, S2, S. S451-S454
http://dx.doi.org/10.1002/pssc.200880899
Zimmer, C.; Medyanyk, K.; Schoenhense, G.; Krischok, Stefan; Lorenz, Pierre; Schubert, J.; Doll, Theodor
Low vacuum photo electron emitting thin films. - In: Physica status solidi. Applications and materials science. - Weinheim : Wiley-VCH, 2005- , ISSN: 1862-6319 , ZDB-ID: 1481091-8, ISSN 1862-6319, Bd. 206 (2009), 3, S. 484-488
http://dx.doi.org/10.1002/pssa.200880477
Low vacuum photo electron emitting thin films. - In: Physica status solidi. Applications and materials science. - Weinheim : Wiley-VCH, 2005- , ISSN: 1862-6319 , ZDB-ID: 1481091-8, ISSN 1862-6319, Bd. 206 (2009), 3, S. 484-488
http://dx.doi.org/10.1002/pssa.200880477
Himmerlich, Marcel; Eisenhardt, Anja; Schäfer, Jürgen A.; Krischok, Stefan
Core levels, valence band structure and unoccupied states of clean InN surfaces. - In: 72nd annual meeting and DPG spring meeting of the Condensed Matter Section and the divisions: Physics Education, History of Physics, Radiation and Medical Physics as well as the working groups: Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-Economic Systems, Young DPG, 2008, HL 33.12
Core levels, valence band structure and unoccupied states of clean InN surfaces. - In: 72nd annual meeting and DPG spring meeting of the Condensed Matter Section and the divisions: Physics Education, History of Physics, Radiation and Medical Physics as well as the working groups: Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-Economic Systems, Young DPG, 2008, HL 33.12
Eisenhardt, Anja; Himmerlich, Marcel; Schäfer, Jürgen A.; Krischok, Stefan
Influences of growth conditions on surface properties of MBE grown InN films. - In: 72nd annual meeting and DPG spring meeting of the Condensed Matter Section and the divisions: Physics Education, History of Physics, Radiation and Medical Physics as well as the working groups: Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-Economic Systems, Young DPG, 2008, HL 17.45
Influences of growth conditions on surface properties of MBE grown InN films. - In: 72nd annual meeting and DPG spring meeting of the Condensed Matter Section and the divisions: Physics Education, History of Physics, Radiation and Medical Physics as well as the working groups: Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-Economic Systems, Young DPG, 2008, HL 17.45
Keppler, Angela; Himmerlich, Marcel; Kremin, Christoph; Schumacher, Jens T.; Grodrian, Andreas; Schäfer, Jürgen A.; Metze, Josef; Hoffmann, Martin; Krischok, Stefan
Chemical modification and radiation induced degradation of the photoresist SU-8. - In: 72nd annual meeting and DPG spring meeting of the Condensed Matter Section and the divisions: Physics Education, History of Physics, Radiation and Medical Physics as well as the working groups: Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-Economic Systems, Young DPG, 2008, CPP 10.3
Chemical modification and radiation induced degradation of the photoresist SU-8. - In: 72nd annual meeting and DPG spring meeting of the Condensed Matter Section and the divisions: Physics Education, History of Physics, Radiation and Medical Physics as well as the working groups: Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-Economic Systems, Young DPG, 2008, CPP 10.3
Gutt, Richard; Lorenz, Pierre; Himmerlich, Marcel; Schäfer, Jürgen A.; Krischok, Stefan
In-situ investigation on the surface electronic structure of GaN(0001)-2×2. - In: 72nd annual meeting and DPG spring meeting of the Condensed Matter Section and the divisions: Physics Education, History of Physics, Radiation and Medical Physics as well as the working groups: Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-Economic Systems, Young DPG, 2008, HL 55.4
In-situ investigation on the surface electronic structure of GaN(0001)-2×2. - In: 72nd annual meeting and DPG spring meeting of the Condensed Matter Section and the divisions: Physics Education, History of Physics, Radiation and Medical Physics as well as the working groups: Equal Opportunities, Industry and Business, Information, Physics and Disarmament, Physics of Socio-Economic Systems, Young DPG, 2008, HL 55.4