Intelligente elektro-optische Sensorik

Die Wissenschaftlerinnen und Wissenschaftler betrachten die vielfältigen und komplexen Wechselwirkungen zwischen Nanomaterialien und biologischen Systemen und legen den Forschungsschwerpunkt des Joint Labs auf die Entwicklung intelligenter, elektro-optischer Sensorik. Innerhalb des Joint Labs wird

1. Grundlagenforschung zur Entwicklung von Gruppe IV SiGeSn-Halbleitermaterialien und graphen-basierten, sensorischen Bauelementen betrieben, die im NIR-FIR-Bereich arbeiten. Gleichzeitig geht es um die Realisierung innovativer mikroelektronischer Bauelemente wie Quantenbits und spintronischer Bauelemente.
2. die Entwicklung innovativer Bauelemente, die der auf Silizium basierenden Technologie neue Funktionalitäten verleihen, vorangetrieben. Beispiele sind Biomolekülsensorik, Gewebezüchtung, regenerative Medizin oder auch Diagnoseverfahren.

Veröffentlichungen

1. Resolving the Metastable Si-XIII Structure through Convergent Theory and Experiment
   F. Rovaris, C. Bongiorno, A. Marzegalli, M. Bikeroui, D. Spirito, G. J. K. Schaffar, M. Zaghloul, A. A. Corley-Wiciak, F. Montalenti, V. Maier-Kiener, G. Capellini, A. M. Mio, E. Scalise
   Acta Materialia 321, 17740 (2026)
2. Electroluminescence and Franz-Keldysh modulation observed in Sn/Ge multi-quantum wells
   M. Oehme, D. Marian, M. Wanitzek, C. Spieth, D. Schwarz, F. Bärwolf, M. A. Schubert, A. Daus, M. Virgilio, and G. Capellini
   Advanced Optical Materials 14, e03561 (2026)
3. Mid-infrared intersubband transitions in p-doped Si1–xGex parabolic quantum wells
   M. Faverzani, D. Impelluso, S. Calcaterra, C. Zucchetti, C. Tassi, M. Virgilio, G. Capellini, P. Biagioni, G. Isella, and J. Frigerio
   Advanced Optical Materials 14, e03060 (2026)
4. Strain-engineered Ge/SiGe resonant tunneling diodes for silicon-based terahertz emitters
   D. Marian, E. Talamas Simola, M. Leone, E. Bonistalli, A. I. A. Ali, L. Di Gaspare, G. Capellini, M. De Seta, S. Roddaro, and M. Virgilio
   ACS Applied Electronic Materials 8, 5830 (2026)
5. EXAFS sheds light on short-range ordering in Ge1-xSnx Heteroepitaxial Layers grown by MBE and CVD
   S. Gougam, F. De Angelis, C. Meneghini, O. Concepción, D. Buca, G. Capellini, and M.H. Zoellner
   Physical Review Materials 9, 064601 (2025)
6. Adaptive Epitaxy of C-Si-Ge-Sn: Customizable Bulk and Quantum Structures
   O. Concepción, A.J. Devaiya, M. H. Zoellner, M. A. Schubert, F. Bärwolf, L. Seidel, V. Reboud, A.T. Tiedemann, J.-H. Bae, A. Tchelnokov, Q.-T. Zhao, C. A. Broderick, M. Oehme, G. Capellini, D. Grützmacher, and D. Buca
   Advanced Materials 37, 2506919 (2025)
7. Structural instability of human serum albumin during microparticles synthesis
   E. Fardelli, M. Di Gioacchino, G. De Simone, A. Ricci, G. Radostina, Y. Xiong, S. Sotgiu, A. Nucara, A. Tavella, L. Baldassarre, A. Sodo, P. Ascenzi, T. Gasperi, H. Bäumler, A. di Masi, and G. Capellini
   ACS Applied Bio Materials 8, 9907 (2025)
8. Epitaxial SiGeSn alloys for CMOS-compatible thermoelectric devices
   P. Graziosi, D. Marian, A. Tomadin, S. Roddaro, O. Concepción, J. Tiscareño-Ramírez, P. Kaul, A. A. Corley-Wiciak, D. Buca, G. Capellini, and M. Virgilio
   ACS Applied Energy Materials 8, 9075 (2025)
9. Challenges in modulation doping of n-type Ge/SiGe heterostructures: the role of epitaxial and thermal strain
   E. Campagna, E. Talamas Simola, L. Di Gaspare, D. Marian, M. H. Zoellner, F. Berkmann, L. Baldassarre, M. Ortolani, G. Capellini, M. Virgilio, and M. De Seta
   APL Materials 13, 061112 (2025)
10. Shedding light on epitaxial SiGeSn alloys with Raman spectroscopy: local order and thermomechanical properties
    A. A. Corley-Wiciak, I. Zaitsev, O. Concepción, D. Buca, C. L. Manganelli, G. Capellini, and D. Spirito
    Journal of Physics: Condensed Matter 37, 403002 (2025)
11. Sensing of Hemin Binding to Albumin using Ge-based Plasmonic Antennas Operating in the THz Range 
    E. Hardt, R. Varricchio, C.A. Chavarin, G. De Simone, O. Skibitzki, P. Ascenzi, A. di Masi, G. Capellini 
    IEEE Sensors Journal 25(8), 12881 (2025)
12. Ultrastrong Coupling of Si1−xGex Parabolic Quantum Wells to Terahertz Microcavities
    F. Berkmann, T. Venanzi, L. Baldassarre, E. Campagna, E. Talamas-Simola, L. Di Gaspare, C. Corley-Wiciak, G. Capellini, G. Nicotra, G. Sfuncia, A. Notargiacomo, E. Giovine, S. Cibella, M. Virgilio, G. Scalari, M. De Seta, and M. Ortolani
    ACS Photonics 11, 2776 (2024)
13. Evidence of correlation between membranes phase transition and clonogenicity in dehydrating Acinetobacter baumannii: a combined μ-Raman and AFM study
    E. Fardelli, M. Di Gioacchino, M. Lucidi, G. Capecchi, F. Bruni, A. Sodo, P. Visca, and G. Capellini
    The Journal of Physical Chemistry B 128, 6806 (2024)
14. Characterization of Drop Cast as Strategy for the Biofunctionalization of Plasmonic Sensors Based on Highly Doped Ge-Based 
    E. Hardt, R. Varricchio, C.A. Chavarin, O. Skibitzki, A. di Masi, G. Capellini 
    Proc. iCampus Cottbus Conference (iCCC 2024), 191 (2024)
15. Quantitative Protein Sensing with Germanium THz-Antennas Manufactured using CMOS Processes 
    E. Hardt, C.A. Chavarin, S. Gruessing, J. Flesch, O. Skibitzki, D. Spirito, G.M. Vita, G. De Simone, A. di Masi, C. You, B. Witzigmann, J. Piehler, G. Capellini 
    Optics Express 30(22), 40265 (2022)
16. Terahertz Subwavelength Sensing with Bio-Functionalized Germanium Fano-Resonators 
    C.A. Chavarin, E. Hardt, O. Skibitzki, T. Voss, M.H. Eissa, D. Spirito, G. Capellini, L. Baldassarre, J. Flesch, J. Piehler, C. You, S. Gruessing, F. Roemer, B. Witzigmann 
    Frequenz: Journal of RF-Engineering and Telecommunications 76(11-12), 639 (2022)
17. N-Type Ge/Si Antennas for THz Sensing 
    C.A. Chavarin, E. Hardt, S. Gruessing, O. Skibitzki, I. Costina, D. Spirito, W. Seifert, W.M. Klesse, C.L. Manganelli, C. You, J. Flesch, J. Piehler, M. Missori, L. Baldassarre, B. Witzigmann, G. Capellini 
    Optics Express 29(5), 7680 (2021)
18. Biomolecule Sensing in THz Range with N-Ge/Si Antennas 
    C.A. Chavarin, A.A. Wiciak, E. Hardt, S. Gruessing, O. Skibitzki, I. Costina, W. Seifert, W.M. Klesse, C.L. Manganelli, C. You, J. Flesch, J. Piehler, M. Missori, W. Koczorowski, L. Baldassarre, B. Witzigmann, G. Capellini, D. Spirito
    Proc. 46th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2021), (2021) 

Präsentationen

1. Highly Doped Ge-based Plasmonic µ-Structures for THz Biosensing  (invited)
   E. Hardt, O. Skibitzki, G. De Simone, A. di Masi, D. Rettke, L. Barillas, G. Capellini, C.A. Chavarin 
   15. Wildauer Wissenschaftswoche: 5. EcoPhotonics Symposium (2026), Wildau, March 09 - 13, 2026, Germany
2. Shedding light on the lattice strain and interface quality of Si and Ge quantum wells at the nanoscale
   G. Capellini  (invited)
   E-MRS Fall Meeting (E-MRS 2026), Warsaw, September 15 - 18, 2025, Poland
3. Influence of SiN/SiO2 Passivation on the Interaction of a Highly Doped Plasmonic Ge Antenna Cladding with Albumin in the THz Range 
   E. Hardt, D. Rettke, G. De Simone, O. Skibitzki, A. di Masi, L. Barillas, C.A. Chavarin, G. Capellini 
   E-MRS Fall Meeting (E-MRS 2026), Warsaw, September 15 - 18, 2025, Poland
4. Determination of the Detection Limit and Hemin Binding Effect using Ge-based Plasmonic Antennas in the THz Range. 
   E. Hardt, C.A. Chavarin, R. Varricchio, O. Skibitzki, A. di Masi, G. Capellini 
   17. Dresdner Sensor-Symposium (DSS 2024), Dresden, November 25 - 27, 2024, Germany
5. Advanced characterization of the crystal lattice in Si and Ge quantum wells
   G. Capellini (Plenary)
   8th  International Conference on NANOstructures and nanomaterials SElf-Assembly,(NANOSEA) 16-19 July 2024, Marseille (Fra)
6. Role of the Domain II of Human Serum Albumin in Bacteria Toxins Recognition: From Biochemical Studies to Biotechnological Implications 
   R. Varricchio, G. De Simone, E. Hardt, C.A. Chavarin, G. Capellini, A. di Masi 
   48th Federation of European Biochemical Socienties Congress (FEBS 2024), Milan, June 29 - July 03, 2024, Italy
7. Characterization of Drop Cast as Strategy for the Biofunctionalization of Plasmonic Sensors Based on Highly Doped Ge-Based 
   E. Hardt, R. Varricchio, C.A. Chavarin, O. Skibitzki, A. di Masi, G. Capellini 
   iCampus Cottbus Conference (iCCC 2024), Cottbus, May 14 - 16, 2024, Germany
8. Ultra-Thin Subwavelength Detection of Polymer Layers using Highly-Doped N-Ge Plasmonic Antenna in the THz Range 
   E. Hardt, C.A. Chavarin, J. Flesch, O. Skibitzki, R. Varricchio, A. di Masi, G. Capellini 
   87. Frühjahrstagung der Deutschen Physikalischen Gesellschaft (DPG 2024), Berlin, March 17 - 22, 2024, Germany
9. Use of the Ultra-Highly Doped Plasmonic Ge Antenna on Si/SIO Substrates to Investigate the Interaction between Human Serum Albumin and Hemin in the THz Range 
   E. Hardt, C.A. Chavarin, O. Skibitzki, R. Varricchio, D. Spirito, A. di Masi, G. Capellini 
   Women in Photonics (2023), Jena, November 26 - 30, 2023, Germany
10. Investigation of the Interaction Between Hemin and Human Serum Albumin in the THz Range using Ultra-High Doped Ge-based Plasmonic Antenna 
    E. Hardt, C.A. Chavarin, O. Skibitzki, R. Varricchio, D. Spirito, A. Di Masi,G. Capellini 
    E-MRS Fall Meeting 2023, Warsaw, September 18 - 21, 2023, Poland
11. Influence of Thickness in Ge-Based Plasmonic Antennas for the Detection of Human Serum Albumin 
    E. Hardt, C.A. Chavarin, O. Skibitzki, D. Spirito, R. Varricchio, A. diMasi, S. Gruessing, B. Witzigmann, G. Capellini 
    3rd Joint Conference International SiGe Technology and Device Meeting and International Conference on Silicon Epitaxy and Heterostructures (ISTDM/ICSI 2023), Como, May 21 - 25, 2023, Italy
12. Substrate Influence on the Fano Coupling of Bright-Dark Modes in THz Plasmonic n-doped Ge Antennas 
    E. Hardt, C. Alvarado Chavarin, S. Gruessing, O. Skibitzki, T. Voß, D. Spirito, B. Witzigmann, G. Capellini 
    26. Deutsche Physikerinnentagung German Conference of Women in Physics, Karlsruhe, November 24 - 27, 2022, Germany
13. Ge-Based Plasmonic Antenna Made of Ultra-High Doped Ge for Biosensing in the THz Range 
    E. Hardt, C.A. Chavarin, S. Gruessing, J. Flesch, O. Skibitzki, D. Spirito, G.M. Vita,G.D. Simone, A. di Masi, C. You, B. Witzigmann, J. Piehler, G. Capellini 
    E-MRS Fall Meeting 2022, Warsaw, September 19 - 22, 2022, Poland
14. Biomolecule Sensing in THz Range with N-Ge/Si Antennas 
    C.A. Chavarin, A.A. Wiciak, E. Hardt, S. Gruessing, O. Skibitzki, I. Costina, W. Seifert, W.M. Klesse, C.L. Manganelli, C. You, J. Flesch, J. Piehler, M. Missori, W. Koczorowski, L. Baldassarre, B. Witzigmann, G. Capellini, D. Spirito 
    46th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2021), Chengdu, August 29 - September 03, 2021, China
15. Optimization of Material and Fabrication of THz - Germanium Microantennas 
    A.A. Wiciak, E. Hardt, C.A. Chavarin, W. Koczorowski, W.M. Klesse, G. Capellini, D. Spirito 
    11th THz Young Scientists Meeting (2020), Marburg, March 01 - 02, 2020, Germany
16. Modeling of Plasmonic Semiconductor THz Antennas in Square and Hexagonal Array Arrangements 
    S. Gruessing, B. Witzigmann, F. Roemer, G. Capellini, C.A. Chavarin, W.M. Klesse, E. Hardt, J. Piehler, C. You, J. Flesch 
    SPIE Photonics West (2020), San Francisco, February 01 - 06, 2020, USA

Organisation der „2024 International Summer School: Photonic Realms: A Journey into Quantum Information, Sensing, and Space Applications“, die im September 2024 am IHP, der TH Wildau und der Universität Roma Tre stattfand.

6 Doktorarbeiten und 2 Masterarbeiten wurden gemeinsam durchgeführt.