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Time-resolved Optical Spectroscopy

  • Prof. Johannes Gierschner

    PhD: University of Tübingen. Germany
    Previous Position: University of Mons, Belgium
    Research: Optical spectroscopy of polyconjugated materials
    ORCID: 0000-0001-8177-7919
    Researcher ID: K-7938-2014
    Joining Date: January, 2008
    User Name: johannes.gierschner
    Telephone: +34 91 299 87 83

    Johannes Gierschner received his PhD at the University of Tübingen, Germany in 2000. After postdoctoral stays in Tübingen, Mons, and GeorgiaTech, he joined IMDEA Nanoscience in 2008 as a Senior Researcher (Ramón y Cajal fellow 2008-13). In 2014, he finalized his habilitation at the University of Tübingen, and holds an adjunct professorship (Privatdozent) there since then.

    His more than 90 peer-reviewed publications (3700 citations, h-index of 33) are dedicated to integrative spectroscopic/computational research on different classes of conjugated organic materials. J.G. has pre- sented his work in more than 50 oral presentations at international conferences (19 invited) and 80 invited seminars at research institutes. He has coordinated 2 Marie-Curie RTNs and 2 national projects (currently: MultiCrom). He was holding a visiting researcher position at the University of Valencia (2008-11), adjunct professor positions at Seoul National University (SNU; 2014/15) and University of Mons (2014/15), and is regular visiting researcher at SNU since 2009. J.G. has 20 years’ experience in teaching and supervi- sion, and organized numerous symposia, schools, and research meetings. He is a peer reviewer for more than 40 ACS, Wiley-VCH, RSC, Elsevier, NPG, AIP and Springer journals, associate editor of ‘Frontiers in Chemistry’, board member for ‘Nanospectroscopy’ and of several conference series.

    Research Lines

    Our work follows an integrative spectroscopic/computational research on different classes of supramo- lecular conjugated organic materials, relying on long standing collaborations with materials scientists in-house and abroad:

    1. One-/two component solid state fluorescent and phosphorescent materials.
    2. All-organic non-fullerene organic solar cells.
    3. Binary chromophore / carbon allotrope materials.
    4. Addressable supramolecular host-guest compounds with cooperative optical response.
    5. Conjugation in oligomeric and polymeric materials.
    6. Color stabilization in natural compounds.
    7. Multi-responsivefluorescentbi/tri-colorswitchesbasedonmoleculardyads/triadsandmixedco-crystals.

    Relevant publications

    • Organic Single Crystal Lasers - a Materials View, Adv. Opt. Mater. 4 (2016) 348.

    • Stabilizing and Modulating Color by Copigmentation: Insights from Theory and Experiment, Chem. Rev. 116 (2016) in print.

    • Computational Engineering of Low Bandgap Copolymers, Front. Chem. 1 (2013) 35.

    • Luminescent Distyrylbenzenes: Tailoring Molecular Structure and Crystalline Morphology, J. Mater. Chem. C 1 (2013) 5818.

    • Highly Emissive H-Aggregates or Aggregation-Induced Emission Quenching? The Photophysics of All- Trans Para-Distyrylbenzene, J. Phys. Chem. Lett. 4 (2013) 2686.

    • DirectionalExcitonTransportinSupramolecularNanostructuredAssemblies,Phys.Chem.Chem.Phys. 14 (2012) 13146.

    • p-Conjugated Cyanostilbene Derivatives: A Unique Self-Assembly Motif for Molecular Nanostructures with Enhanced Emission and Transport, Acc. Chem. Res. 45 (2012) 544.