Project A5 Piezotronic Magnetoelectric Sensors Project A5 employs piezotronics for improving the ME sensors. Preliminary work shows the suitability of various ME sensor types for the piezotronic concept, including ZnO, AlN, and PZT. The well-known piezotronic material from literature, ZnO, will be utilized to investigate the effect of morphology, doping, defects, crystal quality, interfaces, as well as the local stress distribution behavior. Using FFT impedance spectroscopy, will help with understanding the details of the electrical and electronic properties in the Schottky and ohmic contacts. Besides fundamental understanding of piezotronics for ME sensors, an increase in the limit of detection (LoD) by three orders of magnitude is expected as indicated by preliminary work.. Involved Researchers A5Prof. Dr.Rainer AdelungLead of projects A2, A5M.Sc.Mona MintkenDoctoral researcherPowered by Community Builder Role within the Collaborative Research Centre In principle, the piezotronic approach is transferable to many different sensor types. This potential will be elucidated with the other groups listed below. Due to the difference in noise sources and sensor layout, further modeling and characterization in conjunction with other groups is required. Especially the ZnO model system makes a detailed understanding of the role of defects and stress distribution on the piezotronic features possible and will be explored in operando in TEM and synchrotron x-ray experiments to gain fundamental understanding of underlying principles. The impedance spectroscopy will be provided as a service to all projects that need a specification of dielectric films. This project is part of the focus groups F1 “Modeling” and F2 “Sensor Concepts”. A3: The result of the piezotronic investigations using AlN and PZT will be used as feedback to improve the piezotronic effect in different devices. A4: Adoption of the piezotronic approach to a ΔE readout. A6: The characterization of the in situ micro-structural changes will be performed in close collaboration with TEM and synchrotron x-ray experiments. Push-to-pull devices will be customized to enable the measurement of strained piezoelectric materials in TEM and synchrotron x-ray analyses. A8: Exchange of finite element method calculations of mechanical deformations. B1: Exchange of modeling of noise behavior of the piezotronic sensor systems and associated electronics. B7: Supplying various ZnO networks as templates for cell experiments. Z1: MEMS AlN layers for piezotronic based sensors. Z2: High-quality, low-noise sensor measurements. Project-related Publications Y. K. Mishra, R. Adelung, ZnO tetrapod materials for functional applications. Materials Today, 21, 6, 631-651 (2018). https://doi.org/10.1016/j.mattod.2017.11.003I. Paulowicz, V. Postica, O. Lupan, N. Wolff, S. Shree, A. Cojocaru, M. Deng, Y. K. Mishra, I. Tiginyanu, L. Kienle, R. Adelung, Zinc oxide nanotetrapods with four different arm morphologies for versatile nanosensors. Sensors and Actuators B: Chemical 262, 425-435 (2018). https://doi.org/10.1016/j.snb.2018.01.206D. Smazna, J. Rodrigues, S. Shree, V. Postica, G. Neubüser, A. F. Martins, N. B. Sedrine, N. K. Jena, Le. Siebert, F. Schütt, O. Lupan, R. Ahuja, M. R. Correia, T. Monteiro, L. Kienle, Y. Yang, R. Adelung, Y. K. Mishra, Buckminsterfullerene hybridized zinc oxide tetrapods: defects and charge transfer induced optical and electrical response. Nanoscale 10, 21, 10050-10062 (2018). DOI: 10.1039/C8NA00391BO. Lupan, N. Wolff, V. Postica, T. Braniste, I. Paulowicz, V. Hrkac, Y. K. Mishra, I. Tiginyanu, L. Kienle, R. Adelung, Properties of a single SnO2:Zn2SnO4 - Functionalized nanowire based nanosensor. Ceramics International 44, 4859-4867 (2018). https://doi.org/10.1016/j.ceramint.2017.12.075M. Hoppe, O. Lupan, V. Postica, N. Wolff, V. Duppel, L. Kienle, I. Tiginyanu, R. Adelung, ZnAl2O4-Functionalized Zinc Oxide Microstructures for Highly Selective Hydrogen Gas Sensing Applications. Physica Status Solidi. A. 215, 7 (2018). https://doi.org/10.1002/pssa.201700772O. Lupan, V. Postica, R. Adelung, F. Labat, I. Ciofini, U. Schürmann, L. Kienle, L. Chow, B. Viana, T. Pauporté, Functionalized Pd/ZnO Nanowires for Nanosensors. Physica Status Solidi (RRL) 12, 1 (2018). https://doi.org/10.1002/pssr.201700321S. B. Hrkac, C. T. Koops, M. Abes, C. Krywka, M. Müller, M. Burghammer, M. Sztucki, T. Dane, Kaps, Y. K. Mishra,R. Adelung, J. Schmalz, M. Gerken, E. Lage, C. Kirchhof, E. Quandt, O. M. Magnussen, B. M. Murphy, Tunable Strain in Magnetoelectric ZnO Microrod Composite Interfaces. ACS Appl. Mater. Interfaces, 9 (30), pp 25571–25577 (2017). DOI: 10.1021/acsami.6b15598S. Kaps, S. Bhowmick, J. Gröttrup, V. Hrkac, D. Stauffer, H. Guo, O. L. Warren, J. Adam, L. Kienle, A. M. Minor, R. Adelung, Y. K. Mishra, Piezoresistive Response of Quasi-One-Dimensional ZnO Nanowires Using an in Situ Electromechanical Device. Acs Omega, 2(6), 2985-2993 (2017). http://dx.doi.org/10.1021/acsomega.7b00041 O. Lupan, V. Postica, J. Gröttrup, A. K. Mishra, N. H. de Leeuw, R. Adelung, Enhanced UV and ethanol vapour sensing of a single 3-D ZnO tetrapod alloyed with Fe2O3 nanoparticles. Sensors & Actuators: B. Chemical, Vol. 245, 448-461 (2017). https://doi.org/10.1016/j.snb.2017.01.107J. Gröttrup, V. Postica, N. Ababii, O. Lupan, C. Zamponi, D. Meyners, Y. K. Mishra, V. Sontea, I. Tiginyanu, R. Adelung, Size-dependent UV and gas sensing response of individual Fe2O3-ZnO:Fe micro- and nanowire based devices. Journal of Alloys and Compounds, Vol. 701, 920-925 (2017). https://doi.org/10.1016/j.jallcom.2016.12.346O. Lupan, V. Postica, J. Gröttrup, A. K. Mishra, N. H. de Leeuw, J. F. C. Carreira, J. Rodrigues, N. Ben Sedrine, M. R. Correia, T. Monteiro, V. Cretu, I. Tiginyanu, D. Smazna, Y. K. Mishra, R. Adelung, Hybridization of Zinc Oxide Tetrapods for Selective Gas Sensing Applications. ACS Appl. Mater. Interfaces, 9 (4), 4084-4099 (2017). https://doi.org/10.1021/acsami.6b11337 SFB1261 Microsite Click here to visit our Microsite with information for students, teachers and the public (German and English version available). Recent Publications P. Durdaut, M. Höft, J.-M. Friedt, E. Rubiola, Equivalence of Open-Loop and Closed-Loop Operation of SAW Resonators and Delay Lines. Sensors 2019, 19, 185 (2019). https://doi.org/10.3390/s19010185R. Hirschberg, M. Scharnberg, S. Schröder, S. Rehders, T. Strunskus, F. Faupel, Electret films with extremely high charge stability prepared by thermal evaporation of Teflon AF. Organic Electronics (2018). https://doi.org/10.1016/j.orgel.2018.02.040 A. Kittmann, P. Durdaut, S. Zabel, J. Reermann, J. Schmalz, B. Spetzler, D. Meyners, N. X. Sun, J. McCord, M. Gerken, G. Schmidt, M. Höft, R. Knöchel, F. Faupel, E. Quandt, Wide Band Low Noise Love Wave Magnetic Field Sensor System. Scientific Reports, vol. 8, no. 278 (2018). http://dx.doi.org/10.1038/s41598-017-18441-4 You are here: HomeResearchProjectsProject A5 Cookies make it easier for us to provide you with our services. With the usage of our services you permit us to use cookies. Ok
