Výsledky vyhledávání - "Michele, Failla"

Effects of Pump Photon Energy on Generation and Ultrafast Relaxation of Excitons and Charge Carriers in CdSe Nanoplatelets

Autor: Michele Failla, Fransisco García Flórez, Bastiaan B. V. Salzmann, Daniel Vanmaekelbergh, Henk T. C. Stoof, Laurens D. A. Siebbeles

Publikováno v: The Journal of Physical Chemistry C, 127(4)

We studied the initial nature and relaxation of photoexcited electronic states in CdSe nanoplatelets (NPLs). Ultrafast transient optical absorption (TA) measurements were combined with the theoretical analysis of the formation and decay of excitons,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa0f2ce55f5a50242251181df9e71f9e
https://doi.org/10.1021/acs.jpcc.2c07292

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Effects of the Structure and Temperature on the Nature of Excitons in the Mo0.6W0.4S2Alloy

Autor: Deepika Poonia, Nisha Singh, Jeff J. P. M. Schulpen, Marco van der Laan, Sourav Maiti, Michele Failla, Sachin Kinge, Ageeth A. Bol, Peter Schall, Laurens D. A. Siebbeles

Publikováno v: Journal of Physical Chemistry C, 126(4), 1931-1938. American Chemical Society
The Journal of Physical Chemistry C, 126(4)

We studied the nature of excitons in the transition metal dichalcogenide alloy Mo0.6W0.4S2 compared to pure MoS2 and WS2 grown by atomic layer deposition (ALD). For this, optical absorption/transmission spectroscopy and time-dependent density functio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::230c022abe3f3acc4fd1f446de2525be
https://dare.uva.nl/personal/pure/en/publications/effects-of-the-structure-and-temperature-on-the-nature-of-excitons-in-the-mo06w04s2alloy(9aa5ed40-f1bd-4f28-aeec-f4db851b3c5c).html

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Unraveling the Photophysics of Liquid-Phase Exfoliated Two-Dimensional ReS2Nanoflakes

Autor: Ivo Tanghe, Zeger Hens, Deepika Poonia, Pieter Geiregat, Pieter Schiettecatte, Michele Failla, Sourav Maiti, Laurens D. A. Siebbeles, Sachin Kinge

Publikováno v: The Journal of Physical Chemistry C, 125(38)

Few-layered transition-metal dichalcogenides (TMDs) are increasingly popular materials for optoelectronics and catalysis. Among the various types of TMDs available today, rhenium chalcogenides (ReX2) stand out due to their remarkable electronic struc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0109bd8168eaefd0702c709ad587fd9
https://doi.org/10.1021/acs.jpcc.1c05268

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Landau polaritons in highly nonparabolic two-dimensional gases in the ultrastrong coupling regime

Autor: Werner Wegscheider, Christian A. Lehner, Maksym Myronov, Jérôme Faist, Felice Appugliese, David R. Leadley, Giacomo Scalari, Johannes Haase, Mattias Beck, Shima Rajabali, Janine Keller, James Lloyd-Hughes, Michele Failla, Pierre Nataf

Publikováno v: Physical Review B. 101

We probe ultra-strong light matter coupling between metallic terahertz metasurfaces and Landau-level transitions in high mobility 2D electron and hole gases. We utilize heavy-hole cyclotron resonances in strained Ge and electron cyclotron resonances

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f922dfc107ffc8f15ce7e8c8fd4a1df
https://doi.org/10.1103/physrevb.101.075301

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Photoexcitation of PbS Nanosheets Leads to Highly Mobile Charge Carriers and Stable Excitons

Autor: Laurens D. A. Siebbeles, Jannika Lauth, Michele Failla, Sachin Kinge, Christian Klinke, Eugen Klein

Publikováno v: Nanoscale, 11(44)
Nanoscale 11 (2019), Nr. 44

Solution-processable two-dimensional (2D) semiconductors with chemically tunable thickness and associated tunable band gaps are highly promising materials for ultrathin optoelectronics. Here, the properties of free charge carriers and excitons in 2D

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca9ed220ba80b4d9e610e1e110bba082

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Critical Mode Softening in Ultra-Strong Coupling of Landau Level Transitions to THz Metamaterials Beyond the Hopfield Model

Autor: Michele Failla, Jérôme Faist, Johannes Haase, Janine Keller, Shima Rajabali, Felice Appugliese, David R. Lcadley, Giacomo Scalari, Curdin Maissen, James Lloyd-Hughes, Maksym Myronov, Werner Wegscheider, Pierre Nataf, Christian A. Lehner

Publikováno v: Proceedings of the 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

We study the ultra-strong light-matter coupling of THz metamaterials to Landau level transitions in heavily non-parabolic strained Ge quantum wells (QWs) and InSb QWs. We systematically scale the frequency of the THz metamaterial and observe a clear

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9aeb28e55bcc0a09d6dfc945176e3961
https://doi.org/10.1109/irmmw-thz.2018.8510438

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