Farewell party of János Radó
We thank the splendid work at MFA and wish you a successful position in Canada!
MFA Postdoctorate Price to László Pósa
for his outstanding achievements in the field of memristive switches. Congratulations.
MFA Research Support price to Erika Tunyogi
for her outstanding achievements in the field of embedded systems. Congratulations.
3rd Prize on TDK
Our TDK student, Péter Hornung received 3rd Prize on the Annual Scientific Student Associations' Conference at BME (TDK) Title: Optimization of termoelectric acceleration sensor operating conditions Supervisor: Dr. Szabolcs Berezvai, Dr. János Volk Section: Applied Mechanics Paper: https://tdk.bme.hu/GPK/AKM24/Autonom-termoelektromos-gyorsulasmero-szenzor Congratulations.
Z. Baji et al: Atomic layer deposition and characterization of Zn-doped Ga2O3 films
The present work focuses on the atomic layer deposition (ALD), annealing, and Zn doping of gallium oxide (Ga2O3) films using a novel Ga precursor, hexakis-dimethylamino-digallium. As ALD deposited Ga2O3 films are always amorphous, the optimal annealing procedure had to be found to achieve crystalline beta -Ga2O3. The bandgaps and dielectric properties of the layers were measured and the effects of the deposition parameters and postdeposition annealing on the [...]
János Bolyai Research Scholarship for László Pósa
Title: Development of phase-change memories Grant name: János Bolyai Research Scholarship of the Hungarian Academy of Sciences Span: 1st September, 2021 - 31st August, 2024 Awarding ceremony: 16th September, 2021. in Main Building of HAS Congratulations!
Congratulations on Binderiya’s MSc final exam!
Title: Piezoelectric nitride thin films Supervisor: Nguyen Quoc Khánh Date: June 21st, 2021. Grade of the diploma: excellent Congratulations!
L. Pósa et al: Noise diagnostics of graphene interconnects for atomic-scale electronics
We have demonstrated that the advanced analysis of low-frequency noise measurements supplies a rich source of information on the controlled electrobreakdown process of graphene nanojunctions. Following the evolution of the relative noise amplitudes we were able to optimize the electrical breakdown protocol and to identify distinct regimes of the nanogap formation process. View on: MTMT: 32040083 | DOI: 10.1038/s41699-021-00237-w | REAL: 126052
1st Prize on OTDK
Our TDK student, Zsolt Filep received 1st Prize on National Scientific Students’ Associations Conference (OTDK). Title: 2-dimensional electron gas based energy harvesters. Supervisors: Dr. János Volk, Dr. István Endre Lukács Section Metrology Instuments 2 Congratulations.
3rd Prize on OTDK
Our TDK student, János Márk Bozorádi received 3rd Prize on the National Scientific Students’ Associations Conference (OTDK). Title: Improvement of measurement tools for piezoelectric energy harvesters Supervisor: Dr. János Radó Section: Metrology Instuments 3 Congratulations.
Cooperative Doctoral Programme Scholarship for Tímea Török
Grant name: Cooperative Doctoral Programme for Doctoral Scholarships Date of official notification: 22 December 2020 Title (title of ongoing PhD): Development and investigation of ultra-small on-chip resistive switching memory devices Duration: 3 years
Binderiya’s award on OTDK
Our MSc student, Oyunbolor Binderiya received Special Award on the Materials Physics Section of the National Scientific Students’ Associations Conference (OTDK). Her supervisor is Dr. Nguyen Quoc Khánh and the title of the paper is: Reactive magnetron sputtering of AlN and AlScN thin films for piezoelectric applications. Congratulations.
Press release on the final results of the wireless sensor project (KoFAH) is published on various sites.
ek-cer.hu: Novel wireless sensor networks developed by researchers at EK MFA elektro-net.hu: Önellátó érzékelőhálózatok nehezen elérhető helyekre index.hu: Önellátó érzékelőhálózatokat terveztek az EK kutatói elkh.org: Új technológiákon alapuló önellátó érzékelőhálózatokat terveztek az EK kutatói ek-cer.hu: Új technológiákon alapuló önellátó érzékelőhálózatokat terveztek az EK kutatói
L. Pósa et al: A Rational Fabrication Method for Low Switching-Temperature VO2
…published in MDPI Nanomaterials (link) by the Nanosensors Group in cooperation with other MFA teams Here, we propose and optimize a simple fabrication method for VO2 rich layers by the oxidation of metallic vanadium in atmospheric air. It was shown that a sufficiently broad annealing time window of 3.0–3.5 h can be obtained at an optimal oxidation temperature of 400 °C. [...]
N. Q. Khánh et al: The effect of substrate bias on the piezoelectric properties of pulse DC magnetron sputtered AlN thin films
We have shown by Piezoresponse Force Microscopy (PFM) that the quality of the deposited AlN layer depends strongly on the negative substrate bias, i.e., the energy transferred via the bombardment of the accelerated positive ions on the sample. November 13 2020: N. Q. Khánh et al: The effect of substrate bias on the piezoelectric properties of pulse DC magnetron sputtered AlN thin films published in Journal of Materials [...]
Binderiya Oyunbolor and Zsolt Filep on the Students’ Scientific Conference (TDK)
…have been awarded a certificate of merit at the Experimental Physics Session of BME TDK. Binderiya Oyunbolor (supervisor: Nguyen Quoc Khánh), Reactive magnetron sputtering of AlN and ScAlN thin films for piezoelectric applications Zsolt Filep (supervisor: István Endre Lukács), Two-dimensional electron gas based electromechanical microsensors A well-deserved congratulation to all of them!
Final Meeting of the Autonomous Sensor Networks’ project
Results were presented by the internal and external stakeholders of the project (KoFAH: Advanced Functional Materials for Autonomous Sensor Networks). Oral lectures were followed by a live demonstration of the developed systems.
Tire sensor tests on kick-plate track
Nanosensors Group performed several tire sensor tests in collaboration with the Institute for Computer Science and Control (SzTAKI). If you are interested in our driving assistance tire sensor concept please contact our group (contact at nems dot hu).
Dose rate mapping measurement at the KFKI Campus using the DoziMobile unit
In the frame of the DoziNet project it was demonstrated that the radiation detector system developed by the Space Research Laboratory for sounding rocket experiments could be combined with the communication units and protocol used and developed by the Nanosensors Department for self-organizing scalable networks and that the combined system could be integrated into the network of Geiger–Müller (GM) probes installed and operated by the Environmental Protection Service [...]
S. Soleimani et al: Optimization of co‑sputtered CrxAl1−xN thin films for piezoelectric MEMS devices
April 28 2020: S. Soleimani et al: Optimization of co‑sputtered CrxAl1−xN thin films for piezoelectric MEMS devices published in Journal of Materials Science: Materials in Electronics 0957-4522 1573-482X View on: MTMT: 31308883 | DOI: 10.1007/s10854-020-03260-7 | REAL: 108669 | WoS: 000529837900002 | Scopus: 85083968123
MSc student Binderiya Oyunbolor joins our team
She is working on the reactive sputtering of nitride thin films under the supervision of Dr. Nguyen Quoc Khánh.
János Radó’s PhD Thesis Defense
On May 28, 2020, János Radó defended his PhD thesis titled 'Micro- and nanoforce sensors' at the Doctoral School on Materials Sciences and Technologies of Óbuda University with a grade of 'summa cum laude'. Congratulations!