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Another project by Prof. Dr hab. Marek Grinberg as part of the Polish ─ Taiwanese Research Cooperation
The project entitled “Narrow-band luminophores for light-emitting diodes in lighting and backlighting” has made it to the list of applications recommended for financing as part of the fifth call launched by the National Centre for Research and Development in conjunction with the Ministry of Science and Technology in Taipei. The project is a continuation of joint research conducted by the team led by Prof. R. S. Liu at National Taiwan University and the team led by Prof. Dr hab. Marek Grinberg at the University of Gdańsk as part of the project “New luminophores for white-light emitting diodes”.
The research planned in the project will focus on the following three areas:
- Synthesis and characterisation of narrow-band luminophores for LEDs and WLEDs based on oxides, nitrides and Eu2+-doped oxynitrides as well as Mn4+-doped fluorides,
- Synthesis and characterisation of new materials for liquid-crystal displays, especially in the red spectral range and
- Synthesis and characterisation of perovskite quantum dots as potential luminophores.
The development work will comprise:
- Developing synthesis processes which will allow control of the oxidation state of dopants by co-doping with metal ions and Fermi level engineering,
- Relating the spectral shape of Mn4+ ions to matrix composition and structure
- Modelling the energy structure of the network-dopant system as well as the energy structure of compensating point defects with ab initio methods.
The application aspects of the project stem from the possibility to use the materials obtained in real devices. National Taiwan University produces LEDs and WLEDs as standard. The synthesis of new materials will be performed mainly at National Taiwan University while the spectral analysis of the materials obtained and the modelling of energy structure will take place at the University of Gdańsk. As part of the project, globally unique synthesis methods will be applied such as reactions performed in a controlled atmosphere, under high pressure and in high temperatures as well as spectroscopy under hydrostatic pressure in diamond anvil cells.
The project will be implemented in 2018─2020.
University budget is 89,250 EUR.