Publications

Affichage des publications 21 à 30 sur 687 au total

Physique

About carrier's self-trapping and dynamical Rashba splitting in the two-dimensional hybrid perovskite (BA)$_2$(MA)$_2$Pb$_3$I$_{10}$

Time- and Angle-Resolved Photoelectron Spectroscopy (tr-ARPES) is employed to monitor photoexcited electrons in the two-dimensional hybrid perovskite (BA)$_2$(MA)$_2$Pb$_3$I$_{10}$. Photoelectron intensity maps are in good agreement with ab-initio…

W. Qi, S. Ponzoni, G. Huitric, V. Gorelov, A. Pramanik, Y. Laplace, M. Marsi, E. Papalazarou, S. Maehrlein, E. Deleporte, N. Mallik, A. Taleb Ibrahimi, A. Bendounan, K. Zheng, T. Pullerits, L. Perfetti

Physique

Ultrafast dynamics of relaxation in well-dispersed quantum-confined nanographenes

Probing the intrinsic dynamics of excited-state relaxation in graphene quantum dots presenting exceptional dispersion stability, precisely controlled number of conjugated carbon rings and photoluminescence quantum yield of almost unity.

Sébastien Quistrebert, Daniel Medina-Lopez, Cynthia Banga-Kpako, Thanh Trung Huynh, Stéphane Campidelli, Jean-Sébastien Lauret, Elsa Cassette

Nanoscale -

Physique

Collective Fluorescence of Graphene Quantum Dots on a surface

This study explores the organization of graphene quantum dots on the surface of monocrystalline halide perovskite. We show that graphene quantum dots tends to aggregate on the surface of perovskite unlike in solution or on other substrates, even at…

Hugo Levy-Falk, Suman Sarkar, Thanh Trung Huynh, Daniel Medina-Lopez, Lauren Hurley, Océane Capelle, Muriel Bouttemy, Gaëlle Trippé-Allard, Stéphane Campidelli, Loïc Rondin, Elsa Cassette, Emmanuelle Deleporte, Jean-Sébastien Lauret

photonique

Non-symmetrical vortex beam shaping in VECSEL laser arrays

We propose and numerically test, to our knowledge, a novel concept for asymmetric vortex beam generation in a degenerate vertical external cavity surface emitting laser (DVECSEL). The method is based on a phase-locking ring array of lasers created…

Sopfy Karuseichyk, Ilan Audoin, Vishwa Pal, Fabien Bretenaker

Photonics research -

Physique

Beyond Spin Coating: Homogeneous All-Inorganic Perovskite Films via High-Pressure Recrystallization

Metal halide perovskites are promising materials for optoelectronic applications owing to their outstanding optical and electronic properties. Among them, all-inorganic perovskites such as CsPbBr3 offer superior thermal and chemical stability…

Asma Miled, Trong Tam Nguyen, José Penuelas, Aziz Benamrouche, Céline Chevalier, Thi Kim Anh Hoang, Gaëlle Trippé-Allard, Elsa Cassette, Brice Devif, Emmanuel Drouard, Emmanuelle Deleporte, Hong Hanh Mai, Abdelaziz Bouazizi, Christian Seassal, Hai Son Nguyen

Physique

Controlled HPHT annealing of SiV-doped nanodiamonds at SOLEIL synchrotron: structural and optical investigations

Diamonds and nanodiamonds (NDs) containing quantum color centers, such as nitrogen-vacancy (NV) centers, have been widely studied in recent years for their promising applications across various fields, including cryptography and telecommunications,…

Mary de Feudis, Kin On Ho, Laura Henry, Vanna Pugliese, Boris Yavkin, Marie-Pierre Adam, Nicolas Guignot, Jean-Sébastien Lauret, Fabien Bénédic, Jocelyn Achard, Philippe Goldner, Serge Desgreniers, Jean-François Roch

2nd International Paris-Saclay Workshop on Nanodiamonds -

Physique Atomique

Probing interactions by spin noise spectroscopy

Dans les systèmes magnétiques, la spectroscopie du bruit fondamental dû aux fluctuations aléatoires du spin, appelée spectroscopie du bruit de spin (SNS), est réalisée optiquement en mesurant les fluctuations de la rotation de Faraday subie par un…

Joseph Delpy