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Optical Detection of Long Electron Spin Transport Lengths in a Monolayer Semiconductor

Autor: L. Ren, L. Lombez, C. Robert, D. Beret, D. Lagarde, B. Urbaszek, P. Renucci, T. Taniguchi, K. Watanabe, S. A. Crooker, X. Marie

Publikováno v: Physical Review Letters. 129

Using a spatially-resolved optical pump-probe experiment, we measure the lateral transport of spin/valley polarized electrons over very long distances (tens of micrometers) in a single WSe2 monolayer. By locally pumping the Fermi sea of 2D electrons

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb59d932a74216ead75f7a3e44d2064d
https://doi.org/10.1103/physrevlett.129.027402

Investigation of the spatial distribution of hot carriers in quantum-well structures via hyperspectral luminescence imaging

Autor: Hamidreza Esmaielpour, Maxime Giteau, L. Lombez, Stéphane Collin, Jean-François Guillemoles, Amaury Delamarre, Andrea Cattoni, Daniel Suchet, Daniel Ory

Publikováno v: Journal of Applied Physics
Journal of Applied Physics, American Institute of Physics, 2020, 128 (16), pp.165704. ⟨10.1063/5.0022277⟩
Journal of Applied Physics, 2020, 128 (16), pp.165704. ⟨10.1063/5.0022277⟩

Observation of robust hot carrier effects in quantum-well structures has prompted hopes to increase the efficiency of solar cells beyond the Shockley–Queisser limit (33% for single junction solar cells at AM1.5G). One of the main studies in hot car

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4760b9da0d43d96aa9feff5c9134d6ee
https://hal.archives-ouvertes.fr/hal-03173345

Light-Induced Passivation in Triple Cation Mixed Halide Perovskites: Interplay between Transport Properties and Surface Chemistry

Autor: Adrien Bercegol, Jean Rousset, Armelle Yaiche, L. Lombez, Muriel Bouttemy, Solène Béchu, Hamza Shafique, Davina Messou, Stefania Cacovich, Philip Schulz

Publikováno v: ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces, Washington, D.C. : American Chemical Society, 2020, 12 (31), pp.34784-34794. ⟨10.1021/acsami.0c06844⟩

International audience; Mixed halide perovskites have attracted a strong interest in the photovoltaic community as a result of their high power conversion efficiency and the solid opportunity to realize low-cost and industry-scalable technology. Ligh

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1d6231120ca0e2d7d2b13fc731f9eea