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Functional Optoelectronic Nanomaterials

Prof. Dr. Gerasimos Konstantatos

    Activities:

We employ advances in nanoscience and we transform them into nanotechnology in solving real-world problems that current technology cannot address or do so at an affordable cost for the benefit of the society. We are doing so by assembling a group of physicists, chemists and engineers to tackle complex, interdisciplinary problems. We focus on novel functional nanomaterials, nanostructures and devices for optoelectronics and renewable energy applications.

Our main scope is on the development of low-cost, high-efficiency solar cells employing nanostructured materials of low toxicity and high abundance to address the TW challenge. We also exploit optical phenomena that emerge in the nanoscale to break long-standing trade-offs in solar cells and photodetectors. We study optoelectronically active plasmonic structures that may allow for ultra-thin low cost solar cells and ultra-sensitive photodetectors.

Full-fledged Wet Chemistry Lab for material synthesis:
    Available Resources:
  • 4 fumehoods with 5 Schlenk lines
  • 1 glovebox with integrated spincoater
  • 1 dry box
Post-processing/Device Fab Lab:
    Available Resources:
  • 2 fumehoods with spincoaters
  • 1 glovebox with integrated spincoater
  • 1 Thermal evaporator
  • 1 Atomic Layer Deposition System
  • 2 Rapid thermal Annealing systems (RTP)
Optical Characterization Suite:
    Available Resources:
  • 1 UV/VIS/NIR spectrophotometer
  • 1 FTIR with microscope
  • 1 Fluorescence Spectroscopy system (Steady-state and transient PL (TCSPC)) from 300 nm – 1700 nm.
  • 1 X-ray Diffractometer (XRD)
Optoelectronic Device Characterization Lab
    Available Resources:
  • Solar cell Characterization Suite: Class 3A solar simulator, TPV/TPC technique, EQE measurement
  • Light Emission characterization: compact probe-station for L-I-V characterization, high-resolution spectrometer (600 – 1700 nm)
  • ASE/Lasing characterization setup (inc. various pump laser sources (fs, ps, ns)
  • Photodetector characterization Suite: 1 ambient probe station, 1 vacuum probestation (80K-350K), 2 semiconductor parameter analyzers with fA resolution, 1 supercontinuum laser source, 1 quantum cascade laser source, MWIR/LWIR monochromator for EQE measurements, 1 Step-scan FTIR system, several diode-laser sources, oscilloscope etc.
    Available Resources: Grants
  • ERC CoG 2016 – HEINSOL
  • Graphene Flagship – WP Optoelectronics (Core 1,2,3)
  • Plan Nacional – Mineco

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Functional Optoelectronic Nanomaterials

Prof. Dr. Gerasimos Konstantatos

    Former Group Members
  • Fiona Jean Beck, Postdoctoral researcher
  • María Bernechea, Research fellow
  • Yu Bi, Postdoctoral researcher
  • Yiming Cao, Postdoctoral researcher
  • Sotirios Christodoulou, Postdoctoral researcher
  • Francesco Di Stasio, Research fellow
  • Silke Luzia Diedenhofen, Postdoctoral researcher
  • Francisco Pelayo García, PhD student
  • Schuchi Gupta, Research engineer
  • Nengjie Huo, Postdoctoral researcher
  • Dominik Kufer, PhD student
  • Tania Lasanta, Research engineer
  • Helmut Mäckel, Research fellow
  • Beatriz Martín, Visiting scientist
  • Luis Martínez, PhD student
  • Gabriel Mercier, Research engineer
  • Agustín Mihi, Research fellow
  • Nichole Cates Miller, Postdoctoral researcher
  • Nosipho Moloto, Visiting scientist
  • Arup Kumar Rath, Postdoctoral researcher
  • Iñigo Ramiro González, Postdoctoral researcher
  • David Tan So, PhD student
  • Alexandros Stavrinadis, Research fellow
  • Óscar Vázquez, Postdoctoral researcher
  • Jianjun Wang, Research engineer
  • Guillem Xercavins, Research engineer
  • Xiaojie Yang, Postdoctoral researcher
  • Yujue Yang, Visiting scientist

Functional Optoelectronic Nanomaterials

Prof. Dr. Gerasimos Konstantatos

    PhD Theses
  • Photodetectors based on quantum dots and 2d materials I. Nikitskiy
  • Copper indium sulfide colloidal quantum dot solar cells D. So
  • Photodetectors based on Llow-dimensional materials and hybrid systems D. Kufer
  • Plasmonic hot-carrier optoelectronics F. P. García de Arquer
  • N-Type bismuth sulfide coloidal nanocrystals and their application to solution-processed photovoltaic devices L. Martinez

Functional Optoelectronic Nanomaterials

Prof. Dr. Gerasimos Konstantatos