TY - CHAP A1 - Funke, Harald A1 - Börner, Sebastian A1 - Hendrick, P. A1 - Recker, E. T1 - Modification and testing of an engine and fuel control system for a hydrogen fuelled gas turbine T2 - Progress in Propulsion Physics. Vol. 2 Y1 - 2011 SN - 978-2-7598-0673-7 SP - 475 EP - 486 PB - EDP Sciences CY - Les Ulis ER - TY - CHAP A1 - Funke, Harald A1 - Börner, Sebastian A1 - Hendrick, P. A1 - Recker, E. A1 - Elsing, R. ED - DeLuca, Luigi T. T1 - Development and integration of a scalable low NOx combustion chamber for a hydrogen fuelled aero gas turbine T2 - Progress in Propulsion Physics. - Vol. 4 Y1 - 2013 SN - 978-2-7598-0876-2 U6 - https://doi.org/10.1051/eucass/201304357 N1 - 4th European Conference for Aero-Space Sciences : July 4 - 8, 2011, St Petersburg, Russia ; EUCASS <4, 2011, St. Petersburg> SP - 357 EP - 372 PB - EDP Sciences CY - [Les Ulis] ER - TY - CHAP A1 - Funke, Harald A1 - Börner, Sebastian A1 - Keinz, Jan A1 - Hendrick, P. A1 - Recker, E. T1 - Low NOx Hydrogen combustion chamber for industrial gas turbine applications“, 14th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery T2 - ISROMAC-14 : the Forteenth International Symposium on Transport Phenomena and Dynamics of Rotating Machinery ; Honolulu, Hawaii, February 27 - March 02nd, 2012 Y1 - 2012 N1 - International Symposium on Transport Phenomena and Dynamics of Rotating Machinery ; (14 ; 2012.02.27-03.02 ; Honolulu, Hawaii) ER - TY - CHAP A1 - Funke, Harald A1 - Börner, Sebastian A1 - Keinz, Jan A1 - Kusterer, K. A1 - Kroninger, D. A1 - Kitajima, J. A1 - Kazari, M. A1 - Horikama, A. T1 - Numerical and experimental characterization of low NOx Micromix combustion principle for industrial hydrogen gas turbine applications T2 - Proceedings of ASME Turbo Expo 2012 Y1 - 2013 N1 - ASME Turbo Expo 2012, GT2012, June 11-15, 2012, Copenhagen, Denmark ER - TY - JOUR A1 - Funke, Harald A1 - Börner, Sebastian A1 - Krebs, W. A1 - Wolf, E. T1 - Experimental Characterization of Low NOx Micromix Prototype Combustors for Industrial Gas Turbine Applications JF - ASME Turbo Expo 2011 ; Vancouver, Canada, June 6-10, 2011 Y1 - 2011 N1 - GT2011-45305 ER - TY - CHAP A1 - Funke, Harald A1 - Börner, Sebastian A1 - Robinson, A. A1 - Hendrick, P. A1 - Recker, E. T1 - Low NOx H2 combustion for industrial gas turbines of various power ranges Y1 - 2010 N1 - 5th International Gas Turbine Conference ETN-IGTC, ETN-2010-42, Brussels, Belgium, October 2010 ER - TY - JOUR A1 - Funke, Harald A1 - Dickhoff, J. A1 - Keinz, Jan A1 - Anis, H. A. A1 - Parente, A. A1 - Hendrick, P. T1 - Experimental and numerical study of the micromix combustion principle applied for hydrogen and hydrogen-rich syngas as fuel with increased energy density for industrial gas turbine applications JF - Energy procedia N2 - The Dry Low NOx (DLN) Micromix combustion principle with increased energy density is adapted for the industrial gas turbine APU GTCP 36-300 using hydrogen and hydrogen-rich syngas with a composition of 90%-Vol. hydrogen (H₂) and 10%-Vol. carbon-monoxide (CO). Experimental and numerical studies of several combustor geometries for hydrogen and syngas show the successful advance of the DLN Micromix combustion from pure hydrogen to hydrogen-rich syngas. The impact of the different fuel properties on the combustion principle and aerodynamic flame stabilization design laws, flow field, flame structure and emission characteristics is investigated by numerical analysis using a hybrid Eddy Break Up combustion model and validated against experimental results. Y1 - 2014 U6 - https://doi.org/10.1016/j.egypro.2014.12.201 SN - 1876-6102 (E-Journal) IS - 61 SP - 1736 EP - 1739 PB - Elsevier CY - Amsterdam ER - TY - CHAP A1 - Funke, Harald A1 - Esch, Thomas A1 - Roosen, Peter ED - Bartz, Wilfried J. T1 - Using motor gasoline for aircrafts - coping with growing bio-fuel-caused risks by understanding cause-effect relationship T2 - Fuels 2009 : mineral oil based and alternative fuels ; 7th international colloquium ; January 14 - 15, 2009 N2 - The utilisation of vehicle-oriented gasoline in general aviation is very desirable for both ecological and economical reasons, as well as for general considerations of availability. As of today vehicle fuels may be used if the respective engine and cell are certified for such an operation. For older planes a supplementary technical certificate is provided for gasoline mixtures with less than 1 % v/v ethanol only, though. Larger admixtures of ethanol may lead to sudden engine malfunction and should be considered as considerable security risks. Major problems are caused by the partially ethanol non-withstanding materials, a necessarily changed stochiometric adjustment of the engine for varying ethanol shares and the tendency for phase separation in the presence of absorbed water. The concepts of the flexible fuel vehicles are only partially applicable in the view of air security. Y1 - 2009 SN - 978-3-924813-75-8 SP - 237 EP - 244 PB - Technische Akademie Esslingen (TAE) CY - Ostfildern ER - TY - JOUR A1 - Funke, Harald A1 - Esch, Thomas A1 - Roosen, Petra T1 - Powertrain Adaptions for LPG Usage in General Aviation JF - MTZ worldwide N2 - In general aviation, too, it is desirable to be able to operate existing internal combustion engines with fuels that produce less CO₂ than Avgas 100LL being widely used today It can be assumed that, in comparison, the fuels CNG, LPG or LNG, which are gaseous under normal conditions, produce significantly lower emissions. Necessary propulsion system adaptations were investigated as part of a research project at Aachen University of Applied Sciences. Y1 - 2022 U6 - https://doi.org/10.1007/s38313-021-0756-6 VL - 2022 IS - 83 SP - 58 EP - 62 PB - Springer Nature CY - Basel ER - TY - CHAP A1 - Funke, Harald A1 - Haj Ayed, A. A1 - Kusterer, K. A1 - Keinz, Jan A1 - Kazari, M. A1 - Kitajima, J. A1 - Horikawa, A. A1 - Okada, K. T1 - Numerical Study on Increased Energy Density for the DLN Micromix Hydrogen Combustion Principle T2 - Combustion, Fuels and Emissions (ASME Turbo Expo 2014: Turbine Technical Conference and Exposition : Düsseldorf, Germany, June 16–20, 2014 ; Vol. 4A) Y1 - 2014 SN - 978-0-7918-4568-4 N1 - Paper No. GT2014-25848 SP - V04AT04A057 PB - ASME CY - New York, N.Y. ER - TY - CHAP A1 - Funke, Harald A1 - Keinz, Jan A1 - Börner, S. A1 - Hendrick, P. A1 - Elsing, R. T1 - Testing and analysis of the impact on engine cycle parameters and control system modifications using hydrogen or methane as fuel in an industrial gas turbine T2 - Progress in propulsion physics ; Volume 8 Y1 - 2016 SN - 978-5-94588-191-4 U6 - https://doi.org/10.1051/eucass/201608409 SP - 409 EP - 426 PB - EDP Sciences CY - o.O. ER - TY - CHAP A1 - Funke, Harald A1 - Keinz, Jan A1 - Börner, Sebastian A1 - Haj Ayed, A. A1 - Kusterer, K. A1 - Tekin, N. A1 - Kazari, M. A1 - Kitajima, J. A1 - Horikawa, A. A1 - Okada, K. ED - Song, Seung Jin T1 - Experimental and numerical characterization of the dry low NOx micromix hydrogen combustion principle at increased energy density for industrial hydrogen gas turbine applications T2 - Combustion, fuels and emissions : proceedings of the ASME Turbo Expo: Turbine Technical Conference and Exposition - 2013 ; June 3 - 7, 2013, San Antonio, Texas, USA ; vol. 1 Y1 - 2013 SN - 978-0-7918-5510-2 N1 - Paper No: GT2013-94771 SP - V001T04A055 PB - ASME CY - New York, NY ER - TY - CHAP A1 - Funke, Harald A1 - Keinz, Jan A1 - Haj Ayed, A. A1 - Kazari, M. A1 - Kitajima, J. A1 - Horikawa, A. A1 - Okada, K. T1 - Development and Testing of a Low NOx Micromix Combustion Chamber for an Industrial Gas Turbine T2 - Proceedings of International Gas Turbine Congress 2015 Tokyo November 15-20, 2015, Tokyo, Japan Y1 - 2015 SN - 978-4-89111-008-6 N1 - IGTC15-0092 SP - 131 EP - 140 ER - TY - CHAP A1 - Funke, Harald A1 - Keinz, Jan A1 - Hendrick, P. T1 - Experimental Evaluation of the Pollutant and Noise Emissions of the GTCP 36-300 Gas Turbine Operated with Kerosene and a Low NOX Micromix Hydrogen Combustor T2 - 7th European Conference for Aeronautics and Space Sciences, EUCASS 2017 Y1 - 2017 U6 - https://doi.org/10.13009/EUCASS2017-125 ER - TY - CHAP A1 - Funke, Harald A1 - Keinz, Jan A1 - Kusterer, K. A1 - Haj Ayed, A. A1 - Kazari, M. A1 - Kitajima, J. A1 - Horikawa, A. A1 - Okada, K. T1 - Experimental and Numerical Study on Optimizing the DLN Micromix Hydrogen Combustion Principle for Industrial Gas Turbine Applications T2 - ASME Turbo Expo 2015: Turbine Technical Conference and Exposition Volume 4A: Combustion, Fuels and Emissions Montreal, Quebec, Canada, June 15–19, 2015 Y1 - 2015 SN - 978-0-7918-5668-0 U6 - https://doi.org/10.1115/GT2015-42043 SP - V04AT04A008 ER - TY - JOUR A1 - Funke, Harald A1 - Keinz, Jan A1 - Kusterer, Karsten A1 - Ayed, Anis Haj A1 - Kazari, Masahide A1 - Kitajima, Junichi A1 - Horikawa, Atsushi A1 - Okada, Kunio T1 - Experimental and Numerical Study on Optimizing the Dry Low NOₓ Micromix Hydrogen Combustion Principle for Industrial Gas Turbine Applications JF - Journal of Thermal Science and Engineering Applications N2 - Combined with the use of renewable energy sources for its production, hydrogen represents a possible alternative gas turbine fuel for future low-emission power generation. Due to the difference in the physical properties of hydrogen compared to other fuels such as natural gas, well-established gas turbine combustion systems cannot be directly applied to dry low NOₓ (DLN) hydrogen combustion. The DLN micromix combustion of hydrogen has been under development for many years, since it has the promise to significantly reduce NOₓ emissions. This combustion principle for air-breathing engines is based on crossflow mixing of air and gaseous hydrogen. Air and hydrogen react in multiple miniaturized diffusion-type flames with an inherent safety against flashback and with low NOₓ emissions due to a very short residence time of the reactants in the flame region. The paper presents an advanced DLN micromix hydrogen application. The experimental and numerical study shows a combustor configuration with a significantly reduced number of enlarged fuel injectors with high-thermal power output at constant energy density. Larger fuel injectors reduce manufacturing costs, are more robust and less sensitive to fuel contamination and blockage in industrial environments. The experimental and numerical results confirm the successful application of high-energy injectors, while the DLN micromix characteristics of the design point, under part-load conditions, and under off-design operation are maintained. Atmospheric test rig data on NOₓ emissions, optical flame-structure, and combustor material temperatures are compared to numerical simulations and show good agreement. The impact of the applied scaling and design laws on the miniaturized micromix flamelets is particularly investigated numerically for the resulting flow field, the flame-structure, and NOₓ formation. Y1 - 2016 U6 - https://doi.org/10.1115/1.4034849 SN - 1948-5093 N1 - TSEA-15-1227 VL - 9 IS - 2 SP - 021001 EP - 021001-10 PB - ASME CY - New York, NY ER - TY - JOUR A1 - Funke, Harald A1 - Recker, E. A1 - Bosschaerts, W. A1 - Boonen, Q. A1 - Börner, Sebastian T1 - Parametrical study of the „Micromix“ hydrogen combustion principle JF - 10th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows, ISAIF10-049, Brussels, Belgium, 4-7 July 2011 Y1 - 2011 ER - TY - JOUR A1 - Funke, Harald A1 - Robinson, A. E. T1 - Development of a new test rig for a micro scale hydrogen combustion chamber JF - Proceedings of the 2nd European Conference for Aero-Space Sciences : July 1 - 6, 2007, Brussels, Belgium Y1 - 2007 N1 - European Conference for Aerospace Sciences <2, 2007, Brüssel> ; EUCASS <2, 2007, Brüssel> ; Paper No. 22 SP - 1 EP - 8 PB - - ER - TY - CHAP A1 - Funke, Harald A1 - Robinson, A. E. A1 - Hendrick, P. A1 - Wagemakers, R. T1 - Design and Testing of a Micromix Combustor With Recuperative Wall Cooling for a Hydrogen Fuelled µ-Scale Gas Turbine T2 - Conference Proceedings ASME Turbo Expo 2010: Power for Land, Sea, and Air. Volume 5: Industrial and Cogeneration; Microturbines and Small Turbomachinery; Oil and Gas Applications; Wind Turbine Technology N2 - For more than a decade up to now there is an ongoing interest in small gas turbines downsized to micro-scale. With their high energy density they offer a great potential as a substitute for today’s unwieldy accumulators, found in a variety of applications like laptops, small tools etc. But micro-scale gas turbines could not only be used for generating electricity, they could also produce thrust for powering small unmanned aerial vehicles (UAVs) or similar devices. Beneath all the great design challenges with the rotating parts of the turbomachinery at this small scale, another crucial item is in fact the combustion chamber needed for a safe and reliable operation. With the so called regular micromix burning principle for hydrogen successfully downscaled in an initial combustion chamber prototype of 10 kW energy output, this paper describes a new design attempt aimed at the integration possibilities in a μ-scale gas turbine. For manufacturing the combustion chamber completely out of stainless steel components, a recuperative wall cooling was introduced to keep the temperatures in an acceptable range. Also a new way of an integrated ignition was developed. The detailed description of the prototype’s design is followed by an in depth report about the test results. The experimental investigations comprise a set of mass flow variations, coupled with a variation of the equivalence ratio for each mass flow at different inlet temperatures and pressures. With the data obtained by an exhaust gas analysis, a full characterisation concerning combustion efficiency and stability of the prototype chamber is possible. Furthermore the data show a full compliance with the expected operating requirements of the designated μ-scale gas turbine. Y1 - 2010 SN - 978-0-7918-4400-7 U6 - https://doi.org/10.1115/GT2010-23453 N1 - ASME Turbo Expo 2010: Power for Land, Sea, and Air, June 14–18, 2010, Glasgow, UK SP - 587 EP - 596 PB - ASME CY - New York, NY ER - TY - JOUR A1 - Funke, Harald A1 - Rönna, Uwe A1 - Robinson, A. E. T1 - Development and testing of a 10 kW diffusive micromix combustor for hydrogen-fuelled μ-scale gas turbines JF - Proceedings of ASME Turbo Expo 2008: Power for Land, Sea and Air ; GT2008 ; June 9-13, 2008, Berlin, Germany Y1 - 2008 N1 - GT2008-50418 SP - 1 EP - 8 PB - ASME CY - New York, NY ER - TY - JOUR A1 - Furuichi, K. A1 - Yoshinobu, T. A1 - Ermelenko, T. A1 - Mourzina, Y. A1 - Iwasaki, H. A1 - Schöning, Michael Josef T1 - Simultaneous visualization of multiple ions by the chemical imaging sensor JF - Proceedings of the 5th East Asian Conference on Chemical Sensors; the 33rd Chemical Sensor Symposium : December 4 - 7, 2001, Huis Ten Bosch, Sasebo-shi, Nagasaki, Japan / Japan Association of Chemical Sensors; the Electrochemical Society of Japan Y1 - 2001 N1 - Chemical sensors; 17.2001 Suppl. B; East Asian Conference on Chemical Sensors ; (5, 2001; Nagasaki) SP - 399 EP - 401 PB - Japan Association of Chemical Sensors CY - Kasuga, Fukuoka-ken ER - TY - JOUR A1 - Förster, Arnold T1 - Layer Deposition I JF - Fundamentals of nanoelectronics / Stefan Blügel ... (ed.). - (Lecture manuscripts of the ... Spring School of the Department of Solid State Research ; 34). - (Schriften des Forschungszentrums Jülich : Materie und Material ; 14 ; 34) Y1 - 2003 SN - 3-89336-319-X SP - C2.1 EP - C2.13 PB - Forschungszentrum, Zentralbibliothek CY - Jülich ER - TY - JOUR A1 - Förster, Arnold T1 - Resonant tunneling diodes : the effect of structural properties on their performance JF - Festkörperprobleme = Advances in solid state physics. 33 (1994) Y1 - 1994 SN - 0065-3357 N1 - Review ; 2. ISSN: 0430-3393 SP - 37 EP - 62 ER - TY - JOUR A1 - Förster, Arnold T1 - Resonant tunneling diodes operating as modern quantum transport devices JF - Proceedings of the Tenth International Workshop on the Physics of Semiconductor Devices : (December 14 - 18, 1999) / ed.: Vikram Kumar ... - Vol. 2 Y1 - 2000 SN - 81-7023-998-2 N1 - International Workshop on the Physics of Semiconductor Devices <10, 1999, Delhi> SP - 966 EP - 966 PB - Allied Publ. CY - New Delhi [u.a.] ER - TY - JOUR A1 - Förster, Arnold T1 - Ultrahigh frequency measurements of magnetic penetration length and surface impedance of YBa2Cu3O7–x microstriplines on Si and GaAs substrates . Rüders, F; Hollricher, O.; Copetti, C. A. ; Förster, A. ; Buchal, Ch. ; Prusseit, W. ; Kinder, H. JF - Journal of Applied Physics. 77 (1995), H. 10 Y1 - 1995 SN - 1089-7550 SP - 5282 EP - 5286 ER - TY - JOUR A1 - Förster, Arnold A1 - Adam, R. A1 - Mikulics, M. A1 - Schelten, J. T1 - Fabrication and subpicosecond optical response of low-temperature-grown GaAs freestanding photoconductive devices. Adam, R.; Mikulics, M.; Forster, A.; Schelten, J.; Siegel, M.; Kordos, P.; Zheng, X.; Wu, S.; Sobolewski, R. JF - Applied Physics Letters. 81 (2002), H. 18 Y1 - 2002 SN - 1077-3118 SP - 3485 EP - 3487 ER - TY - JOUR A1 - Förster, Arnold A1 - Appenzeller, J. A1 - Schroer, C. T1 - Electron interference in a T-shaped quantum transistor based on Schottky-gate technology / J. Appenzeller ; Ch. Schroer ; Th. Schäpers ... A. Förster ... JF - Physical review / B, Condensed matter and materials physics. 53 (1996), H. 15 Y1 - 1996 SN - 1095-3795 SP - 9959 EP - 9963 ER - TY - JOUR A1 - Förster, Arnold A1 - Belyaev, A. E. A1 - Vitusevich, S.A. A1 - Eaves, L. T1 - Photoresponse spectra in p-i-n diodes containing quantum dots. Belyaev, A.E.; Vitusevich, S.A.; Eaves, L.; Main, P.C.; Henini, M.; Förster, A.; Reetz, W.; Danylyuk, S.V. JF - Nanotechnology. 13 (2002), H. 1 Y1 - 2002 SP - 94 EP - 96 ER - TY - JOUR A1 - Förster, Arnold A1 - Bertuccio, G. A1 - Pullia, A. T1 - Pixel X-ray detectors in epitaxial gallium arsenide withhigh-energy resolution capabilities (Fano factor experimentaldetermination) / G. Bertuccio ; A. Pullia ; J. Lauter ; A. Förster ... JF - IEEE transactions on nuclear science. 44 (1997), H. 1 Y1 - 1997 SN - 0018-9499 SP - 1 EP - 5 ER - TY - JOUR A1 - Förster, Arnold A1 - Betko, J. A1 - Kordos, P. A1 - Kuklovsky, S. T1 - Electrical properties of molecular beam epitaxial GaAs layers grown at low temperature / J. Betko ; P. Kordos ; S. Kuklovsky ; A. Förster ... JF - Materials science and engineering B: Solid– state materials for advanced technology. 28 (1994), H. 1-3 Y1 - 1994 SN - 0921-5107 SP - 147 EP - 150 ER - TY - JOUR A1 - Förster, Arnold A1 - Betko, J. A1 - Morvic, M. A1 - Novak, J. T1 - Magnetoresistance in low-temperature grown molecular-beam epitaxial GaAs. Betko, J.; Morvic, M.; Novak, J.; Förster, A.; Kordos, P. JF - Journal of Applied Physics. 86 (1999), H. 11 Y1 - 1999 SN - 1089-7550 SP - 6243 EP - 6248 ER - TY - JOUR A1 - Förster, Arnold A1 - Betko, J. A1 - Morvic, M. A1 - Novak, J. T1 - Hall mobility analysis in low-temperature-grown molecular-beam epitaxial GaAs / J. Betko , M. Morvic ; J. Novák ... A. Förster ... JF - Applied physics letters. 69 (1996), H. 17 Y1 - 1996 SN - 0003-6951 N1 - ISSN der E-Ausg.: 1077-3118 SP - 2563 EP - 2565 ER - TY - JOUR A1 - Förster, Arnold A1 - Brugger, H. A1 - Meiners, U. T1 - High quality GaAs-based resonant tunneling diodes for high frequency device applications / H. Brugger ; U. Meiners ; C. Wölk ... A. Förster ... JF - Proceedings : August 5 - 7, 1991, Cornell University, Ithaca, New York / R. J. Trew, General Chairman Y1 - 1991 SN - 0-7803-0491-8 N1 - Cornell Conference on Advanced Concepts in High Speed Semiconductor Devices and Circuits <1991, Ithaca, NY> SP - 39 EP - ff. PB - Inst. of Electrical and Electronics Engineers CY - Piscataway, NJ ER - TY - JOUR A1 - Förster, Arnold A1 - Brugger, H. A1 - Meiners, U. A1 - Diniz, R. T1 - Hydrostatic pressure sensors based on solid state tunneling devices / H. Brugger; U. Meiners ; R. Diniz ... A. Förster ... JF - Solid state electronics. 37 (1994), H. 4-6 Y1 - 1994 SN - 0038-1101 SP - 801 EP - 804 ER - TY - JOUR A1 - Förster, Arnold A1 - Cambel, V. A1 - Kicin, S. A1 - Kuliffayová, M. T1 - Preparation of patterned GaAs structures for MEMS and MOEMS. Cambel, V.; Kicin, S.; Kuliffayová, M.; Kovácová, E.; Novák, J.; Kostic, I.; Förster, A. JF - Materials Science and Engineering: C. 19 (2002), H. 2 Y1 - 2002 SN - 0928-4931 SP - 161 EP - 165 ER - TY - JOUR A1 - Förster, Arnold A1 - Darmo, J. A1 - Dubecky, F. A1 - Kordos, P. T1 - Annealing effect on concentration of EL6-like deep-level state in low-temperature-grown molecular beam epitaxial GaAs. Darmo, J.; Dubecky, F.; Kordos, P.; Förster, A. JF - Applied Physics Letters. 72 (1998), H. 5 Y1 - 1998 SN - 1077-3118 SP - 590 EP - 592 ER - TY - JOUR A1 - Förster, Arnold A1 - Darmo, J. A1 - Dubecký, F. A1 - Kordos, P. T1 - Annealing characteristics of native defects in low-temperature-grown MBE GaAs / J. Darmo ; F. Dubecky ; P. Kordos ; A. Förster JF - Semiconducting and insulating materials 1996 : proceedings of the 9th Conference on Semiconducting and Insulating Materials (SIMC '9), April 29 - May 3, 1996, Toulouse, France / [IEEE] Y1 - 1996 SN - 0-7803-3095-1 N1 - 2. ISBN: 0-7803-3179-6 ; Conference on Semiconducting and Insulating Materials <9, 1996, Toulouse> ; Institute of Electrical and Electronics Engineers ; IEEE Cat. No.96CH35881 SP - 67 EP - ff. CY - Piscataway, NJ [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Darmo, J. A1 - Dubecký, F. A1 - Kordos, P. T1 - Deep-level states and electrical properties of GaAs grown at 250 °C / J. Darmo ; F. Dubecký ; P. Kordos ; A. Förster ... JF - Materials science and engineering B: Solid– state materials for advanced technology. 28 (1994), H. 1-3 Y1 - 1994 SN - 0921-5107 SP - 393 EP - 396 ER - TY - JOUR A1 - Förster, Arnold A1 - Darmo, J. A1 - Schafer, F. A1 - Kordos, P. T1 - Thermal resistance of the semiconductor structures for a photomixing device. Darmo, J.; Schafer, F.; Forster, A.; Kordos, P.; Gusten, R JF - Conference proceedings : Smolenice Castle, Slovakia, October 14 - 16, 2002 / [organizers: Microelectronics Department, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Bratislava]. Ed. by Juraj Breza Y1 - 2002 SN - 0-7803-7276-X N1 - International Conference on Advanced Semiconductor Devices and Microsystems ; (4, 2002, Smolenice). ASDAM '02 ; (4 : ; 2002.10.14-16 : ; Smolenice) SP - 87 EP - 90 PB - IEEE Operations Center CY - Piscataway, NJ ER - TY - JOUR A1 - Förster, Arnold A1 - Dekorsy, T. A1 - Kim, A. T. M. T1 - Subpicosecond coherent carrier-phonon dynamics in semiconductor heterostructures / T. Dekorsy ; A. M. T. Kim ; G. C. Cho ... A. Förster JF - Physical review / B, Condensed matter and materials physics. 53 (1996), H. 3 Y1 - 1996 SN - 1095-3795 SP - 1531 EP - 1538 ER - TY - JOUR A1 - Förster, Arnold A1 - Dieker, C. A1 - Gerthsen, D. T1 - Microstructure of the AlAs/GaAs and AlAs/InGaAs resonant tunneling diodes and its correlation with the electrical properties / C. Dieker ; D. Gerthsen ; A. Förster ... JF - Microscopy of semiconducting materials 1993 : proceedings of the Royal Microscopical Society Conference held at Oxford University, 5 - 8 April 1993 / ed. by A. G. Cullis ... - (Conference series / Institute of Physics ; 134) Y1 - 1993 SN - 0-7503-0290-9 N1 - Royal Microscopical Society Conference on Microscopy of Semiconducting Materials <8, 1993, Oxford> ; MSM <8, 1993, Oxford> SP - 253 EP - ff. PB - Institute of Physics CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Dubecky, F.. A1 - Darmo, J. T1 - Investigation of deep-level states in bulk and low temperature MBE semiinsulating GaAs by admittance transient spectroscopy / F. Dubecky ; J. Darmo ; M. Darviras ; A. Förster ... JF - Semi-insulating III-V materials, Ixtapa, Mexico 1992 : proceedings of the 7th Conference on Semi-insulating III-V Materials, Ixtapa, Mexico, 21 - 24 April 1992 / ed. by C. J. Miner ... Y1 - 1994 SN - 0-7503-0242-9 N1 - Conference on Semi-Insulating III-V Materials <7, 1992, Ixtapa> SP - 265 EP - 272 PB - Inst. of Physics Publ. CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Döhler, G. H A1 - Heber, J. T1 - Hot electrons in n-i-p.i-based devices / G. H. Döhler ; J. Heber ... A. Förster ... JF - Hot electrons in semiconductors : physics and devices / ed. by N. Balkan. - (Series on semiconductor science and technology ; 5) Y1 - 1998 SN - 0-19-850058-0 SP - 478 EP - 504 PB - Clarendon Press CY - Oxford ER - TY - JOUR A1 - Förster, Arnold A1 - Griebel, M. A1 - Indlekofer, K. M. A1 - Lüth, H. T1 - Transport properties of gated resonant tunneling diodes in the single electron regime. Griebel, M.; Indlekofer, K. M.; Förster, A.; Lüth, H. JF - Journal of Applied Physics. 84 (1998), H. 12 Y1 - 1998 SN - 1089-7550 SP - 6719 EP - 6724 ER - TY - JOUR A1 - Förster, Arnold A1 - Griebel, M. A1 - Indlekofer, K.M. A1 - Lüth, H. T1 - Single electron transport in resonant tunnelling diodes laterally confined by ion implantation. Griebel, M.; Indlekofer, K.M.; Förster, A.; Lüth, H. JF - Journal of Physics D: Applied Physics. 32 (1999), H. 14 Y1 - 1999 SN - 1361-6463 SP - 1729 EP - 1733 ER - TY - JOUR A1 - Förster, Arnold A1 - Griebel, M. A1 - Indlekofer, M. A1 - Lüth, H. T1 - Transport through a buried double barrier single electron transistor at low temperatures JF - Physica E: Low-dimensional Systems and Nanostructures. 2 (1998), H. 1-4 Y1 - 1998 SN - 1386-9477 SP - 502 EP - 506 ER - TY - JOUR A1 - Förster, Arnold A1 - Hardtdegen, Hilde A1 - Ungermanns, C. T1 - Comparative investigation of electrical and optical characteristics of AlxGa1-xAs/GaAs structures deposited by LP-MOVPE and MBE / H. Hardtdegen ; M. Hollfelder ; C. Ungermanns ... A. Förster ... JF - Compound semiconductors, 1994 : proceedings of the twenty-first International Symposium on Compound Semiconductors held in San Diego, California, 18 - 22 September, 1994 / ed. by Herb Goronkin ... - (Conference series / Institute of Physics ; 141) Y1 - 1995 SN - 0-7503-0226-7 N1 - International Symposium on Compound Semiconductors <21, 1994, San Diego, Calif.> ; Institute of Physics SP - 81 EP - ff. PB - Institute of Physics CY - Bristol [u.a.] ER - TY - JOUR A1 - Förster, Arnold A1 - Hartmann, A. A1 - Dieker, Ch. A1 - Hollfelder, M. T1 - Spontaneous formation of tilted AlGaAS/GaAs superlattice during AlGaAs growth. Hartmann, A.; Dieker, Ch.; Hollfelder, M.; Hardtdegen, H.; Förster, A.; Lüth, H. JF - Applied Surface Science. 123-124 (1998) Y1 - 1998 SN - 0169-4332 N1 - = Proceedings of the Sixth International Conference on the Formation of Semiconductor Interfaces SP - 704 EP - 709 ER - TY - JOUR A1 - Förster, Arnold A1 - Hauke, M. A1 - Jakumeit, J. A1 - Krafft, B. T1 - DX Centers in Al0.3Ga0.7As/GaAs Analyzed by Point Contact Measurements. Hauke, M.; Jakumeit, J.; Krafft, B.; Nimtz, G.; Förster, A.; Lüth, H. JF - Journal of Applied Physics. 84 (1998), H. 4 Y1 - 1998 SN - 1089-7550 SP - 2034 EP - 2039 ER - TY - JOUR A1 - Förster, Arnold A1 - Hu, Quing A1 - Verghese, S. T1 - High-frequency (f ~ 1 THz) studies of quantum-effect devices / Qing Hu ; S. Verghese ; R. A. Wyss ... A. Förster JF - Semiconductor science and technology. 11 (1996), H. 12 Y1 - 1996 SN - 1361-6641 SP - 1888 EP - 1894 ER -