Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Niklas Wolff"'
Autor:
Niklas Wolff, Georg Schönweger, Isabel Streicher, Md Redwanul Islam, Nils Braun, Patrik Straňák, Lutz Kirste, Mario Prescher, Andriy Lotnyk, Hermann Kohlstedt, Stefano Leone, Lorenz Kienle, Simon Fichtner
Publikováno v:
Advanced Physics Research, Vol 3, Iss 5, Pp n/a-n/a (2024)
Abstract Wurtzite‐type Al1−xScxN solid solutions grown by metal organic chemical vapor deposition are for the first time confirmed to be ferroelectric. The film with 230 nm thickness and x = 0.15 exhibits a coercive field of 5.5 MV cm−1 at a me
Externí odkaz:
https://doaj.org/article/986b065c4c9a48cd8720f2cf4ed9cfc0
Autor:
Viktor Schell, Elizaveta Spetzler, Niklas Wolff, Lars Bumke, Lorenz Kienle, Jeffrey McCord, Eckhard Quandt, Dirk Meyners
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract Magnetoelastic composites which use surface acoustic waves show great potential as sensors of low frequency and very low amplitude magnetic fields. While these sensors already provide adequate frequency bandwidth for most applications, their
Externí odkaz:
https://doaj.org/article/9dd41f68fb5e4efd85444289c864f0b3
Autor:
Tim Tjardts, Marie Elis, Martin Hicke, Fabian Symalla, Josiah Shondo, Jonas Drewes, Mehmet Kuru, Niklas Wolff, Franz Faupel, Cenk Aktas, Lorenz Kienle, Salih Veziroglu
Publikováno v:
Applied Surface Science Advances, Vol 18, Iss , Pp 100500- (2023)
In recent years, semiconductor photocatalysts such as zinc oxide (ZnO) and titanium dioxide (TiO2) have been studied to utilize solar light for energy production and environmental remediation. However, their wide band gap energy and fast charge recom
Externí odkaz:
https://doaj.org/article/43d38904d0b6403998d9108e618ed383
Autor:
Georg Schönweger, Niklas Wolff, Md Redwanul Islam, Maike Gremmel, Adrian Petraru, Lorenz Kienle, Hermann Kohlstedt, Simon Fichtner
Publikováno v:
Advanced Science, Vol 10, Iss 25, Pp n/a-n/a (2023)
Abstract Analog switching in ferroelectric devices promises neuromorphic computing with the highest energy efficiency if limited device scalability can be overcome. To contribute to a solution, one reports on the ferroelectric switching characteristi
Externí odkaz:
https://doaj.org/article/44048199caba4e3fa0ac787c82ece857
Autor:
Fabian Schütt, Maximilian Zapf, Stefano Signetti, Julian Strobel, Helge Krüger, Robert Röder, Jürgen Carstensen, Niklas Wolff, Janik Marx, Tian Carey, Marleen Schweichel, Maik-Ivo Terasa, Leonard Siebert, Hyo-Ki Hong, Sören Kaps, Bodo Fiedler, Yogendra Kumar Mishra, Zonghoon Lee, Nicola M. Pugno, Lorenz Kienle, Andrea C. Ferrari, Felice Torrisi, Carsten Ronning, Rainer Adelung
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
Laser-based lighting typically relies on wavelength conversion materials that reduce efficiency. The authors present a 3D boron nitride hollow-tube based foam structure that acts as a broadband diffuser with engineered disorder for conversionless whi
Externí odkaz:
https://doaj.org/article/602e8f59fbf04326a046862212709965
Autor:
Niklas Wolff, Md Redwanul Islam, Lutz Kirste, Simon Fichtner, Fabian Lofink, Agnė Žukauskaitė, Lorenz Kienle
Publikováno v:
Micromachines, Vol 13, Iss 8, p 1282 (2022)
Ferroelectric thin films of wurtzite-type aluminum scandium nitride (Al1−xScxN) are promising candidates for non-volatile memory applications and high-temperature sensors due to their outstanding functional and thermal stability exceeding most othe
Externí odkaz:
https://doaj.org/article/0528952e1cfc46dfb3662fd8a97fe872
Autor:
Jingxiang Su, Simon Fichtner, Muhammad Zubair Ghori, Niklas Wolff, Md. Redwanul Islam, Andriy Lotnyk, Dirk Kaden, Florian Niekiel, Lorenz Kienle, Bernhard Wagner, Fabian Lofink
Publikováno v:
Micromachines, Vol 13, Iss 5, p 783 (2022)
In this work, we present a method for growing highly c-axis oriented aluminum scandium nitride (AlScN) thin films on (100) silicon (Si), silicon dioxide (SiO2) and epitaxial polysilicon (poly-Si) substrates using a substrate independent approach. The
Externí odkaz:
https://doaj.org/article/a29618bc8bf540fe8662e1dc9caa2f68
Publikováno v:
Micromachines, Vol 13, Iss 5, p 742 (2022)
Monolithic integration of permanent micromagnets into MEMS structures offers many advantages in magnetic MEMS applications. A novel technique called PowderMEMS, based on the agglomeration of micron-sized powders by atomic layer deposition (ALD), has
Externí odkaz:
https://doaj.org/article/f8705e2e308e4504961e2d5464341286
Autor:
Irina Plesco, Tudor Braniste, Niklas Wolff, Leonid Gorceac, Viola Duppel, Boris Cinic, Yogendra Kumar Mishra, Andrei Sarua, Rainer Adelung, Lorenz Kienle, Ion Tiginyanu
Publikováno v:
APL Materials, Vol 8, Iss 6, Pp 061105-061105-9 (2020)
Here, we report on a new aero-material, called aero-ZnS, representing self-organized architectures made of ZnS hollow micro-tetrapod structures with nanoscale thin walls. The fabrication process is based on the hydride vapor phase epitaxy of CdS on s
Externí odkaz:
https://doaj.org/article/d239ed670ff445f0a9202a7b7c433333
Autor:
Roberto Guido, Patrick D. Lomenzo, Md Redwanul Islam, Niklas Wolff, Maike Gremmel, Georg Schönweger, Hermann Kohlstedt, Lorenz Kienle, Thomas Mikolajick, Simon Fichtner, Uwe Schroeder
Publikováno v:
ACS Applied Materials & Interfaces. 15:7030-7043