Light-Emitting Devices

We are developing the next generation of emissive materials for light-emitting devices (LEDs). The emission with a spectrally narrow bandwidth results in better color gamut and more saturated colors. Semiconductor nanocrystals are great candidates, covering the whole visible range by size and material composition. 

Main research focus includes:

  • Lead halide perovskites (APbX3)
  • Semiconductor nanocrystals (CsPbX3, CdSe, InP)
  • Quantum wells of II-IV semiconductors 
  • Metal-organic complexes 
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Selected publications:
  • Yevhen Shynkarenko, Maryna I. Bodnarchuk, Caterina Bernasconi, Yuliia Berezovska, Vladyslav Verteletskyi, Stefan T. Ochsenbein, and Maksym V. Kovalenko, Direct Synthesis of Quaternary Alkylammonium-Capped Perovskite Nanocrystals for Efficient Blue and Green Light-Emitting Diodes. ACS Energy Lett., 2019, 4, 11, 2703-2711. 
  • Stefan T. Ochsenbein, Franziska Krieg, Yevhen Shynkarenko, Gabriele Raino, and Maksym V. Kovalenko, Engineering Color-Stable Blue Light-Emitting Diodes with Lead-Halide Perovskite Nanocrystals. ACS Appl. Mater. Interfaces, 2019, 11, 24, 21655-21660.
  • Yusuf Kelestemur, Yevhen Shynkarenko, Marco Anni, Sergii Yakunin, Maria Luisa De Giorgi, and Maksym V. Kovalenko, Colloidal CdSe Quantum Wells with Graded Shell Composition for Low-Threshold Amplified Spontaneous Emission and Highly Efficient Electroluminescence, ACS Nano, 2019, 13, 12, 13899-13909. 

Dr. Yevhen Shynkarenko

Research Fellow

Phone +41 58 765 4853

Prof. Dr. Maksym Kovalenko

Group Leader

Phone +41 58 765 4557

maksym.kovalenko@empa.ch