Projects

International

TRANSCOE – Vývoj nových vodivých priehladných elektród pre organickú elektroniku
Development of new designed transparent conductive electrodes for organic electronics
Program: Bilateral – other
Project leader: Ing. Fröhlich Karol DrSc.
Annotation: Subject of the proposed project is preparation of new transparent conductive electrodes with high transparency and low sheet resistance for organic photovoltaic\’s (OPVs) and organic light emitting diodes (OLEDs). The project will focus on five issues; i) electrode design ii) synthesis of conductive electrodes; iii) fabrication, characterization and optimization of transparent electrodes; iv) fabrication and characterization of OPVs and OLEDs to test the performance of the prepared transparent conductive electrodes; v) encapsulation. We will prepare OPVs and OLEDs with incorporated novel electrode design and test the performances of the devices when the electrode materials will be deposited on glass and/or flexible substrate. Transparent conductive electrodes will be based either on organic Ag-nanowire network -organic multilayered structure or on atomic layer deposited Al-doped ZnO films. The electrodes will be characterized and optimized by measuring the sheet resistance and light transmission. The sheet resistance of the electrode should be adjusted to below 12 Ω and 50 Ω sq−1 for organic and Al-doped ZnO films transparent electrodes, respectively. Finally, OPVs and OLEDs will be encapsulated using atomic layer deposited thin films and their performance will be examined. Proposed project includes two different approaches of transparent conducting electrodes preparation for OPVs and PLEDs. Evaluation of performance of these two types of electrodes presents important and unique output of the project. As a result of the project A step to commercialization of new transparent conductive electrodes, OPVs and OLEDs will be achieved through international collaboration. Funding of the proposed project will create seed for setting up a new research on flexible electronics, Organic Field Effect Transistors (OFETs), Organic Thin Film Transistors (OTFTs), and nanotechnology applications in electronic and photonics for both partners.
Duration: 1.2.2017 – 31.1.2020

National

Pokrokový MgB2 supravodič bez difúznej bariéry
Advanced MgB2 superconductor without diffusion barrier
Program: VEGA
Project leader: Ing. Kováč Pavol DrSc.
Annotation: The essence of the project is to prepare and optimize the method of preparation of superconducting composite wire (filaments) by the method of magnesium infiltration or diffusion into boron. The main emphasis will be focused on the simplicity of preparation (without the diffusion barrier), the availability and suitability of the sheath materials and their electro-mechanical properties. The properties of the MgB2 superconducting core will be controlled by technological preparation, annealing conditions, and possible doping. Selection of suitable materials and technological processes allows monitoring of effects on micro-structure, mechanical properties and superconductive properties: critical current density at temperatures in the range of 4.2 – 20 K, critical temperature, connectivity or losses in alternating magnetic field. The role of the project will be also to examine the possibility of creating superconducting links.
Duration: 1.1.2020 – 31.12.2021
Supravodivé vinutia z homogénnych MgB2 drôtov s trubičkovými vláknami
Superconducting coils made of uniform MgB2 wires with tubular filaments
Program: SRDA
Project leader: Ing. Kováč Pavol DrSc.
Annotation: The aim of this project is to develop the process of infiltration/diffusion (IMD) for long and uniform superconducting wires with tubular MgB2 filaments resulting in high engineering current densities measured in coils cooled by solid nitrogen in persistent mode. The main aim is to increase three times the engineering current density in long IMD MgB2 wires in comparison to those commercially obtained by powder-in-tube (PIT) process, especially in the range of magnetic fields 1-5T and temperatures around 20K
Duration: 1.7.2019 – 30.11.2021