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Your search keyword '"Biedermann, Kati"' showing total 18 results
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18 results on '"Biedermann, Kati"'

1. Ferroelectric [HfO2/ZrO2] Superlattices with Enhanced Polarization, Tailored Coercive Field, and Improved High Temperature Reliability (Adv. Phys. Res. 9/2023)

Author

Lehninger, David, primary, Prabhu, Aditya, additional, Sünbül, Ayse, additional, Ali, Tarek, additional, Schöne, Fred, additional, Kämpfe, Thomas, additional, Biedermann, Kati, additional, Roy, Lisa, additional, Seidel, Konrad, additional, Lederer, Maximilian, additional, and Eng, Lukas M., additional

Published
2023
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2. On the formation process of silicon carbide nanophases via hydrogenated thermally induced templated synthesis

Author

Ruemmeli, Mark. H., Borowiak-Palen, Ewa, Gemming, Thomas, Knupfer, Martin, Biedermann, Kati, Kalenczuk, Ryszard J., and Pichler, Thomas

Subjects
Condensed Matter - Materials Science
Abstract

A thermally induced templated synthesis for SiC nanotubes and nanofibers using ammonia or nitrogen as a carrier gas, single wall carbon nanotubes (SWCNT) as templates as well as gaseous Si is presented. The bundles of SWCNT act as both the carbon source and as a nanoframe from which SiC structuctures form. Depending on the duration of the thermally induced templated reaction, for a fixed temperature, carrier gas, and gas pressure, various SiC nanostructures are obtained. These structures include SiC nanorods coated in C, SiC nanorods, SiC nanotubes, and SiC nanocrytals. From our analysis using transmission electron microscopy (TEM) and scanning electron microscopy (SEM), electron energy-loss spectroscopy (EELS), electron diffraction (EDX), optical absorption spectroscopy and Raman spectroscopy as probes we prove that H has a key role on the morphology and stochiometry of the different SiC nanostructures., Comment: 9 pages, 2 Figures

Published
2004
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4. Memory Array Demonstration of fully integrated 1T-1C FeFET concept with separated ferroelectric MFM device in interconnect layer

Author

Seidel, Konrad, primary, Lehninger, David, additional, Hoffmann, Raik, additional, Ali, Tarek, additional, Lederer, Maximilian, additional, Revello, Ricardo, additional, Mertens, Konstantin, additional, Biedermann, Kati, additional, Shen, Yukai, additional, Wang, Defu, additional, Landwehr, Matthias, additional, Heinig, Andreas, additional, Kampfe, Thomas, additional, Mahne, Hannes, additional, Bernert, Kerstin, additional, and Thiem, Steffen, additional

Published
2022
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5. Integration of BEoL Compatible 1T1C FeFET Memory Into an Established CMOS Technology

Author

Lehninger, David, primary, Mahne, Hannes, additional, Ali, Tarek, additional, Hoffmann, Raik, additional, Olivo, Ricardo, additional, Lederer, Maximilian, additional, Mertens, Konstantin, additional, Kampfe, Thomas, additional, Biedermann, Kati, additional, Landwehr, Matthias, additional, Heinig, Andreas, additional, Wang, Defu, additional, Shen, Yukai, additional, Bernert, Kerstin, additional, Thiem, Steffen, additional, and Seidel, Konrad, additional

Published
2022
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6. Optimizing Ferroelectric and Interface Layers in HZO-Based FTJs for Neuromorphic Applications

Author

Sunbul, Ayse, primary, Ali, Tarek, additional, Mertens, Konstantin, additional, Revello, Ricardo, additional, Lehninger, David, additional, Muller, Franz, additional, Lederer, Maximilian, additional, Kuhnel, Kati, additional, Rudolph, Matthias, additional, Oehler, Sebastian, additional, Hoffmann, Raik, additional, Zimmermann, Katrin, additional, Biedermann, Kati, additional, Schramm, Philipp, additional, Czernohorsky, Malte, additional, Seidel, Konrad, additional, Kampfe, Thomas, additional, and Eng, Lukas M., additional

Published
2022
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8. Tuning Hyrbrid Ferroelectric and Antiferroelectric Stacks for Low Power FeFET and FeRAM Applications by Using Laminated HSO and HZO films

Author

Ali, Tarek, primary, Lehninger, David, additional, Lederer, Maximilian, additional, Li, Songrui, additional, Kühnel, Kati, additional, Mart, Clemens, additional, Mertens, Konstantin, additional, Hoffmann, Raik, additional, Olivo, Ricardo, additional, Emara, Jennifer, additional, Biedermann, Kati, additional, Metzger, Joachim, additional, Binder, Robert, additional, Czernohorsky, Malte, additional, Kämpfe, Thomas, additional, Müller, Johannes, additional, Seidel, Konrad, additional, and Eng, Lukas M., additional

Published
2022
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9. A Fully Integrated Ferroelectric Thin‐Film‐Transistor – Influence of Device Scaling on Threshold Voltage Compensation in Displays

Author

Lehninger, David, primary, Ellinger, Martin, additional, Ali, Tarek, additional, Li, Songrui, additional, Mertens, Konstantin, additional, Lederer, Maximilian, additional, Olivio, Ricardo, additional, Kämpfe, Thomas, additional, Hanisch, Norbert, additional, Biedermann, Kati, additional, Rudolph, Matthias, additional, Brackmann, Varvara, additional, Sanctis, Shawn, additional, Jank, Michael P. M., additional, and Seidel, Konrad, additional

Published
2021
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10. Impact of the Nonlinear Dielectric Hysteresis Properties of a Charge Trap Layer in a Novel Hybrid High-Speed and Low-Power Ferroelectric or Antiferroelectric HSO/HZO Boosted Charge Trap Memory

Author

Ali, Tarek, primary, Mertens, Konstantin, additional, Olivo, Ricardo, additional, Rudolph, Matthias, additional, Oehler, Sebastian, additional, Kuhnel, Kati, additional, Lehninger, David, additional, Muller, Franz, additional, Hoffmann, Raik, additional, Schramm, Philipp, additional, Biedermann, Kati, additional, Metzger, Joachim, additional, Binder, Robert, additional, Czernohorsky, Malte, additional, Kampfe, Thomas, additional, Muller, Johannes, additional, Seidel, Konrad, additional, Van Houdt, Jan, additional, and Eng, Lukas M., additional

Published
2021
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13. Thermal decomposition of ferrocene as a method for production of single-walled carbon nanotubes without additional carbon sources

Author

Barreiro, Amelia, Bachtold, Adrian, Pichler, Thomas, Hampel, Silke, Buchner, Bernd, Rummeli, Mark H., Gemming, Thomas, Kramberger, Christian, Leonhardt, Albrecht, Gruneis, Alexander, and Biedermann, Kati

Subjects
Nanotubes -- Chemical properties, Chemical vapor deposition -- Analysis, Chemicals, plastics and rubber industries
Abstract

A new method to grow bulk quantities of single-walled carbon nanotubes (SWCNTs) is developed and reported by a catalytic chemical vapor deposition (CVD) process with the possibility of varying the pressure. Results reveal that high abundances of SWCNT with diameters as small as 0.7 nm, which is the limit for stable caps with isolated pentagons, could be obtained.

Published
2006

15. Thermal Decomposition of Ferrocene as a Method for Production of Single-Walled Carbon Nanotubes without Additional Carbon Sources

Author

German Research Foundation, International Max Planck Research Schools, Austrian Science Fund, Barreiro, Amelia, Hampel, Silke, Rümmeli, Mark H., Kramberger, Christian, Grüneis, Alexander, Biedermann, Kati, Leonhardt, Albrecht, Gemming, Thomas, Büchner, Bernd, Bachtold, Adrian, Pichler, Thomas, German Research Foundation, International Max Planck Research Schools, Austrian Science Fund, Barreiro, Amelia, Hampel, Silke, Rümmeli, Mark H., Kramberger, Christian, Grüneis, Alexander, Biedermann, Kati, Leonhardt, Albrecht, Gemming, Thomas, Büchner, Bernd, Bachtold, Adrian, and Pichler, Thomas

Abstract

A new method to grow bulk quantities of single-walled carbon nanotubes (SWCNTs) by a catalytic chemical vapor deposition (CVD) process with the possibility of varying the pressure has been developed and is reported in this paper. Thermal decomposition of ferrocene provides both catalytic particles and carbon sources for SWCNT growth using Ar as a carrier gas. Upon an increase in the pressure, the mean diameter of the SWCNTs decreases. In fact, high abundances of SWCNT with diameters as small as 0.7 nm, which is the limit for stable caps with isolated pentagons, can be obtained. An additional advantage of this method is that as no external carbon sources are required, SWCNT synthesis can be achieved at temperatures as low as 650°C.

Published
2006

18. Thermally Induced Templated Synthesis for the Formation of SiC Nanotubes and more.

Author

Rümmeli, Mark. H., Borowiak-Palen, Ewa, Gemming, Thomas, Knupfer, Martin, Biedermann, Kati, Kalenczuk, Ryszard J., and Pichler, Thomas

Subjects
SILICON, CARBON, NANOTUBES, AMMONIA, NITROGEN, NANOSTRUCTURES, TRANSMISSION electron microscopy, SCANNING electron microscopy, ELECTRON energy loss spectroscopy, ELECTRON diffraction, ABSORPTION spectra, RAMAN spectroscopy
Abstract

A thermally induced templated synthesis for SiC nanotubes and nanofibers using ammonia or nitrogen as a carrier gas, single wall carbon nanotubes (SWCNT) as templates as well as gaseous Si is presented. The bundles of SWCNT act as both the carbon source and as a nanoframe from which SiC structures form. Depending on the duration of the thermally induced templated reaction, for a fixed temperature, carrier gas, and gas pressure, various SiC nanostructures are obtained. These structures include SiC nanorods coated in C, SiC nanorods, SiC nanotubes and SiC nanocrystals. From our analysis using transmission electron microscopy (TEM) and scanning electron microscopy (SEM), electron energy-loss spectroscopy (EELS), electron diffraction (EDX), optical absorption spectroscopy and Raman spectroscopy as probes we prove that H has a key role on the morphology and stochiometry of the different SiC nanostructures. © 2004 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2004
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