Projects (46)

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  • Tuning the Electronic Structure of Organic/Metal Contacts via Additive Interfacial Segregation

    Koch, Norbert, Prof. Dr. techn. (Structure, Dynamics and electronic Properties of Molecular Systems)

    Duration of Project: 01/2015 - 12/2017

    Financer: German Israel Foundation

    All organic-based devices, i.e., “organic electronics”, require good electrical contacts between the organic semiconductor and an electrode, most commonly a metal. It has been established early-on that the nature of the metal/organic electrical conta ...

  • structural and thermoelectric characterization of individual single-crystalline nanowires

    Fischer, Saskia, Prof. Dr. rer. nat. (New Materials)

    Duration of Project: 11/2012 - 12/2015

    Financer: DFG: Sachbeihilfe

    The focus of this cluster project in the DFG priority programme SPP1386 "Nanostructured thermoelectrics" is the measurement of the thermoelectric properties of individual nanowires, electrical conductivity, thermal conductivity and Seebeck coefficien ...

  • SPP1386: Structural and thermoelectric characterization of individual single-crystalline nanowires (I)

    Fischer, Saskia, Prof. Dr. rer. nat. (New Materials)

    Duration of Project: 05/2011 - 04/2012

    Financer: DFG: Sachbeihilfe

    The focus of this cluster project in the DFG priority programme SPP1386 "Nanostructured thermoelectrics" is the measurement of the thermoelectric properties of individual nanowires, electrical conductivity, thermal conductivity and Seebeck coefficien ...

  • SPP 1386: Controlled thermoelectric properties of low-dimensional charge carrier systems in semiconductor heterostructures (II)

    Fischer, Saskia, Prof. Dr. rer. nat. (New Materials)

    Duration of Project: 11/2012 - 07/2016

    Financer: DFG - Schwerpunktprogramme

    The focus of this cluster project in the DFG priority programme SPP1386 "Nanostructured thermoelectrics" is the thermoelectric properties of low-dimensional charge-carrier sysequences of thermal gradients on coherent electron traThe focus of this clu ...

  • SPP1355:Electronic properties of interfaces with conjugated polymers III

    Koch, Norbert, Prof. Dr. techn. (Structure, Dynamics and electronic Properties of Molecular Systems)

    Duration of Project: 08/2012 - 07/2013

    Financer: DFG: Sachbeihilfe
    The project focuses on polymer interfaces that are of direct relevance for organic photovoltaic
    cells (OPVCs), their function and efficiency. Our goal is to provide a complete understanding
    of the energy levels at all interfaces that occur in polym ...
  • SPP1355:Charge separation at nanostructured molecular donor-acceptor interfaces III

    Koch, Norbert, Prof. Dr. techn. (Structure, Dynamics and electronic Properties of Molecular Systems)

    Duration of Project: 08/2012 - 06/2015

    Financer: DFG: Sachbeihilfe
    Organic donor and acceptor molecules represent an important class of materials for solar energy conversion.
    The focus of this project is to combine the expertise of four experimental groups to address the correlation
    between film and interface morp ...
  • SPP1285: Spin-dependent electron transport in GaAs/AlGaAs nanostructures

    Fischer, Saskia, Prof. Dr. rer. nat. (New Materials)

    Duration of Project: 05/2011 - 01/2012

    Financer: DFG: Sachbeihilfe

    The aim of this project within the DFG priority programm SPP1285 "Semiconductor Spinelectronics" is to investigate spin-dependent ballistic transport in nanoscale GaAs/AlGaAs field-effect heterostructures. Starting materials are modulation doped hete ...

  • SFB 951 / 1: Hybrid Inorganic/Organic Systems for Optoelectronics

    Koch, Norbert, Prof. Dr. techn. (Structure, Dynamics and electronic Properties of Molecular Systems)

    Duration of Project: 07/2011 - 06/2015

    Financer: DFG: Sonderforschungsbereich

    The CRC 951 - Hybrid Inorganic/Organic Systems for Opto-Electronics (HIOS) - is an interdisciplinary effort bringing together scientists with complementary expertise from three universities and two non-university institutions. The goal is the merger ...

  • PP 2196: Understanding and Suppressing Interfacial Charge Recombination for High Performance Perovskite Solar Cells (SURPRISE)

    Koch, Norbert, Prof. Dr. techn. (Structure, Dynamics and electronic Properties of Molecular Systems)

    Duration of Project: 11/2019 - 10/2022

    Halide perovskite semiconductors continue to surprise the community by their many extraordinary physical properties. A key for solar cell applications is their highly fluorescent nature likely due to low defect densities despite their simple processa ...

  • PP 2196: Illuminating Building Block Evolution of Metal-Halide Perovskite Semiconductors from Solutions to Thin Films

    Cocchi, Caterina, Prof. Dr. (Theoretical Physics / Theory of Excitations in low-dimensional Systems)

    Duration of Project: 11/2019 - 10/2022

    Financer: DFG - Schwerpunktprogramme

    The overall goal of this project is to gain fundamental understanding on the structural, electronic, and optical properties of metal-halide complexes in solutions and to follow their evolution towards the formation of crystalline semiconductors throu ...

  • PP 2196/1: Transport of Optical Exciations in Low-Dimensional Halide Perovskites: Coulomb Effects & Structural Dynamics

    Draxl, Claudia, Prof. Dr. Dr. h.c. (Theoretical Physics / Solid State Theory)

    Duration of Project: 09/2019 - 08/2022

    Financer: DFG - Schwerpunktprogramme

    The recent intense scientific efforts related to halide perovskites (HaPs) have revolutionized and invigorated the solid-state research community. The tremendous interest was fuelled by rapid advances in the performances of HaP-based photovoltaic and ...

  • PP 1666/2: Magnetically Doped Topological Insulators: From the Ground State to Dynamics

    Fischer, Saskia, Prof. Dr. rer. nat. (New Materials)

    Duration of Project: 01/2017 - 01/2020

    Financer: DFG - Schwerpunktprogramme

    The project investigates primarily the impact of magnetic doping on three-dimensional topological insulator (TI) systems. Detailed information on their electronic structure is obtained by means of spin and angle-resolved photo emission spectroscopy ( ...

  • PP 1666/1: Magnetically Doped Topological Insulators: Surfaces States, Dimensionality and Defect Effects

    Fischer, Saskia, Prof. Dr. rer. nat. (New Materials)

    Duration of Project: 08/2013 - 07/2018

    Financer: DFG - Schwerpunktprogramme

    The project investigates primarily the impact of magnetic doping on three-dimensional topological insulator (TI) systems. Detailed information on their electronic structure is obtained by means of spin and angle-resolved photo emission spectroscopy ( ...

  • PP 1386: Controlled Thermoelectric Properties of Low-Dimensional Charge Carrier Systems in Semiconductor Heterostructures (I)

    Fischer, Saskia, Prof. Dr. rer. nat. (New Materials)

    Duration of Project: 08/2011 - 12/2012

    Financer: DFG: Sachbeihilfe

    The focus of this cluster project in the DFG priority programme 1386 "Nanostructured Thermoelectrics" is the thermoelectric properties of low-dimensional charge-carrier systems in high-quality semiconductor heterostructures. The project focuses on sy ...

  • PP 1285: Spin-Dependent Electron in GaAs/AlGaAs Nanostructures (III)

    Fischer, Saskia, Prof. Dr. rer. nat. (New Materials)

    Duration of Project: 10/2011 - 07/2014

    Financer: DFG: Sachbeihilfe

    The aim of this project within the DFG priority programme 1285 "Semiconductor Spinelectronics" is to investigate spin-dependent ballistic transport in nanoscale GaAs/AlGaAs field-effect heterostructures (FETs) of low spin-orbit coupling, and to exten ...

  • CRC 951 I: HIOS - Adjusting energy levels of hybrid inorganic/organic heterostructures (Project A8)

    Koch, Norbert, Prof. Dr. techn. (Collaborative Research Centre 555 'Complex Non-linear Processes')

    Duration of Project: 07/2011 - 06/2015

    Financer: DFG: Sonderforschungsbereich

    This project will provide fundamental understanding of the energy levels at HIOS interfaces comprising ZnO and wide-gap conjugated molecules, mainly using photoelectron spectroscopy and the Kelvin probe method. Furthermore, we target developing means ...

  • CRC 951/3: Theory of Opto-Electronic Excitations and Excitation Dynamics at Hybrid Inorganic/Organic Interfaces (SP B11)

    Draxl, Claudia, Prof. Dr. Dr. h.c. (Theoretical Physics / Solid State Theory)

    Duration of Project: 07/2019 - 06/2023

    Financer: DFG: Sonderforschungsbereich

    We are aiming at an in-depth understanding of level alignment, electronic structure, optical excitations and excitation dynamics in hybrid materials, consisting of π-conjugated molecules and transition metal dichalcogenides (TMDCs). To reach these go ...

  • CRC 951/3: Theory of Electro-Optic and Chiral Coupling in Plasmonically Enhanced HIOS (SP B10)

    Busch, Kurt, Prof. Dr. rer. nat. (Theoretical Physics / Theoretical Optics)

    Duration of Project: 07/2019 - 06/2023

    Financer: DFG: Sonderforschungsbereich

    The goal of this project is the development of a comprehensive theoretical framework for electrically driven plasmonic nano-gap structures with sandwiched hybrid inorganic/organic systems (HIOS) and for HIOS that are chirally coupled to plasmonic nan ...

  • CRC 951/3: Structure and Electronic Properties of Conjugated Organic Molecules on Transition Metal Dichalcogenide Monolayers (SP A08)

    Koch, Norbert, Prof. Dr. techn. (Structure, Dynamics and electronic Properties of Molecular Systems)

    Duration of Project: 07/2019 - 06/2023

    Financer: DFG: Sonderforschungsbereich

    The goal is achieving a comprehensive understanding of the structure and electronic properties of hybrid inorganic/organic systems (HIOS) formed by conjugated organic molecules and transition metal dichalcogenide (TMDC) monolayers. The first research ...

  • CRC 951/3: Optical Excitations of TMDC/Dye Hybrids Under Mechanical Strain (SP A06)

    Kirstein, Stefan, PD Dr. (Experimental Physics / Physics of Macromolecules)

    Duration of Project: 07/2019 - 06/2023

    Financer: DFG: Sonderforschungsbereich

    The central goal of this project is the preparation and investigation of stable and efficient emitters, which are formed by incorporating single dye molecules into a transition metal dichalcogenide (TMDC) layer. The local deformations and associated ...

  • CRC 951/3: Hybrid Inorganic/Organic Systems (HIOS) for Opto-Electronics

    Koch, Norbert, Prof. Dr. techn. (Structure, Dynamics and electronic Properties of Molecular Systems)

    Duration of Project: 07/2019 - 06/2023

    Financer: DFG: Sonderforschungsbereich

    The ability to precisely control the formation of heterostructures from different materials has revolutionized electronic and optical technologies during the past decades. However, tackling the increasing challenges faced by these key technologies re ...

  • CRC 951/3: HIOS Structure and Morphology Characterization (SP Z02)

    Koch, Christoph T., Prof. PhD (Experimental Physics / Structural Research and Electron Microscopy)

    Duration of Project: 07/2019 - 06/2023

    Financer: DFG: Sonderforschungsbereich

    This central project provides characterization services by various electron beam based techniques, obtaining information about atomic and electronic structure on hybrid inorganic/organic systems (HIOS) produced within the CRC. Using scientific equipm ...

  • CRC 951/3: First-Principles Modelling of Ultrafast Charge Transfer at Photo-Excited TMDC/Organic Interfaces (SP B16)

    Cocchi, Caterina, Prof. Dr. (Theoretical Physics / Theory of Excitations in low-dimensional Systems)

    Duration of Project: 07/2019 - 06/2023

    Financer: DFG: Sonderforschungsbereich

    The central goal of this project is the investigation of the ultrafast dynamics of photo-excited charge carriers in hybrid systems formed by MoS2 or WS2 and rylene dyes, adopting first-principles methods based on real-time time-dependent density-func ...

  • CRC 951/3: Enabling High-Resolution Imaging and Spectroscopy of Electron Beam Sensitive Hybrid Material Systems (SP A12)

    Koch, Christoph T., Prof. PhD (Experimental Physics / Structural Research and Electron Microscopy)

    Duration of Project: 07/2019 - 06/2023

    Financer: DFG: Sonderforschungsbereich

    The very special opto-electronic properties of hybrid inorganic/organic systems (HIOS) being investigated within this CRC are largely determined by the electronic structure and distribution of charges at the inorganic/organic interface. Holographic i ...

  • CRC 951/3: Electronic Coupling in Inorganic/Organic Semiconductor Hybrid Structures for Opto-Electronic Function (SP B03)

    Blumstengel, Sylke, (Experimentelle Physik, Hybride Bauelemente)

    Duration of Project: 07/2019 - 06/2023

    Financer: DFG: Sonderforschungsbereich

    A central goal of this project is the understanding and tailoring of excitonic coupling and charge transfer in hybrid inorganic/organic systems (HIOS) composed of monolayers (ML) of transition metal dichalcogenides (TMDC) and conjugated organic molec ...

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