7 papers
Dopant-induced modifications of the optical properties of GaSe
Jakub Sójka, Katarzyna Olkowska-Pucko, Kacper Walczyk +5
Doping plays a crucial role in tailoring the electronic, optical, and magnetic properties of semiconductors, enabling control of carrier dynamics and the formation of functional st…
Resonant Raman scattering in bilayer 3R-MoS
Chinmay K. Mohanty, Kacper Walczyk, Tomasz Woźniak +5
Raman scattering is a powerful spectroscopic technique widely employed to investigate light-matter interactions and lattice dynamics in two-dimensional materials. Here, we investig…
Doping-Induced Brightening of Dark Excitons and Trions in a WSe Monolayer
Grzegorz Krasucki, Artur O. Slobodeniuk, Kacper Walczyk +5
Optically dark excitonic states play a critical role in the valleytronic, electronic, and optical properties of monolayer semiconducting transition metal dichalcogenides. Here, we…
Spin-phonon coupling and isotope-related pseudo-molecule vibrations in layered CrGeTe ferromagnet
Grzegorz Krasucki, Katarzyna Olkowska-Pucko, Tomasz Woźniak +4
The vibrational structure of chromium germanium telluride (CrGeTe, CGT) is investigated and a strong spin-phonon coupling is revealed. The measured high-resolution Rama…
Electrically modulated light-emitting diodes driven by resonant and antiresonant tunneling between CrGeTe electrodes
Natalia Zawadzka, Kristina Vaklinova, Tomasz Woźniak +7
Exploring the electron tunneling mechanisms in diverse materials systems constitutes a versatile strategy for tailoring the properties of optoelectronic devices. In this domain, bi…
Extremely high excitonic -factors in 2D crystals by alloy-induced admixing of band states
Katarzyna Olkowska-Pucko, Tomasz Woźniak, Elena Blundo +24
Monolayers (MLs) of semiconducting transition metal dichalcogenides (\mbox{S-TMDs}) emit light very efficiently and display rich spin-valley physics, with gyromagnetic (-) facto…