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O: Fachverband Oberflächenphysik
O 29: Poster: 2D Materials
O 29.10: Poster
Dienstag, 19. März 2024, 12:30–14:30, Poster A
The Effect of WS2-Cu2O for the Optimization of a WS2-based LED — •Jonah von Kuczkowski1, Osamah Kharsah1, Leon Daniel1, Stephan Sleziona1, Denys Vidish2, Kevin Musselman2, and Marika Schleberger1 — 1Universität Duisburg-Essen, Fakultät für Physik und CENIDE, Duisburg, Germany — 2University of Waterloo, Mechanical and Mechatronics Engineering, Waterloo, Canada
Scalable 2D material based LEDs have been the subject of many recent works. Tungsten disulfide (WS2) emerges as a potential active material in such LEDs, based on its direct band gap, high stability and strong photoluminescence. Copper oxide (Cu2O) on the other hand, a p-type semiconductor, can function as the electron-transport layer. This study investigates the interaction between WS2 and Cu2O within the framework of the LED. Different characterization techniques, including (low-temperature) PL, Raman spectroscopy for optoelectronic interaction and various electrical transport measurements are employed to map out the benefits and limitations of using Cu2O in the WS2 based LED.