Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Aïda Hichri"'
Publikováno v:
Physical Review Materials. 5
Structural defects can crucially impact the optical response of monolayer (ML) thick materials as they enable trapping sites for excitons. These trapped excitons appear in photoluminescence spectra as new emissions below the free bright exciton and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b0873bdb1cd3985c7b48119bb39182e
Autor:
Sihem Jaziri, Aïda Hichri
Publikováno v:
Physical Review B. 102
We theoretically investigate two spin configurations of a negative trion in monolayer tungstenides, called the intravalley spin singlet and intervalley spin triplet. The energy splitting between them is attributed to the trion fine structure, arising
Publikováno v:
Physical Review B. 98
Disorder derived from defects or strain in monolayer TMDs can lead to a dramatic change in the physical behavior of the interband excitations, producing inhomogeneous spectral broadening and localization; leading to radiative lifetime increase. In th
Publikováno v:
Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2019, 100 (11), ⟨10.1103/PhysRevB.100.115426⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2019, 100 (11), ⟨10.1103/PhysRevB.100.115426⟩
We theoretically study the role of the Berry curvature on neutral and charged excitons in two-dimensional transition-metal dichalcogenides. The Berry curvature arises due to a strong coupling between the conduction and valence bands in these material
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ea25a56d82ade5b9533703808611b3f
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 29(50)
Electronic and optical performances of the β-InSe monolayer (ML) are considerably boosted by tuning the corresponding band energies through lattice in-plane compressive strain engineering. First principles calculations show an indirect-direct gap tr
Publikováno v:
Proceedings of the 2nd World Congress on New Technologies.
Publikováno v:
Journal of Physics: Condensed Matter. 29:435305
Excitonic effects play an important role on the optoelectronic behavior of atomically thin two-dimensional (2D) crystals of the WS2 transition metal dichalcogenide. In this paper, neutral and charged exciton behaviors in monolayer WS2 are handled wit
Publikováno v:
Journal of Applied Physics. 122:015701
Multi-quantum well organic-inorganic perovskites offer an approach to tunable exciton binding energies based on well-barrier dielectric mismatches, that is, the image-charge effect. As with other two-dimensional materials, ultrathin exfoliated perovs
Publikováno v:
Journal of Applied Physics. 121:235702
The ultrathin transition metal dichalcogenides (TMDs) have emerged as promising materials for various applications using two dimensional semiconductors. They have attracted increasing attention due to their unique optical properties originate from ne