Search Results - "Lounis, Brahim"

The ground exciton state of formamidinium lead bromide perovskite nanocrystals is a singlet dark state by Tamarat, Philippe, Bodnarchuk, Maryna I., Trebbia, Jean-Baptiste, Erni, Rolf, Kovalenko, Maksym V., Even, Jacky, Lounis, Brahim

“…Lead halide perovskites have emerged as promising new semiconductor materials for high-efficiency photovoltaics, light-emitting applications and quantum…”
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The dark exciton ground state promotes photon-pair emission in individual perovskite nanocrystals by Tamarat, Philippe, Hou, Lei, Trebbia, Jean-Baptiste, Swarnkar, Abhishek, Biadala, Louis, Louyer, Yann, Bodnarchuk, Maryna I., Kovalenko, Maksym V., Even, Jacky, Lounis, Brahim

“…Cesium lead halide perovskites exhibit outstanding optical and electronic properties for a wide range of applications in optoelectronics and for light-emitting…”
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Neutral and Charged Exciton Fine Structure in Single Lead Halide Perovskite Nanocrystals Revealed by Magneto-optical Spectroscopy by Fu, Ming, Tamarat, Philippe, Huang, He, Even, Jacky, Rogach, Andrey L, Lounis, Brahim

“…Revealing the crystal structure of lead halide perovskite nanocrystals is essential for the optimization of stability of these emerging materials in…”
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Unraveling exciton–phonon coupling in individual FAPbI3 nanocrystals emitting near-infrared single photons by Fu, Ming, Tamarat, Philippe, Trebbia, Jean-Baptiste, Bodnarchuk, Maryna I., Kovalenko, Maksym V., Even, Jacky, Lounis, Brahim

“…Formamidinium lead iodide (FAPbI 3 ) exhibits the narrowest bandgap energy among lead halide perovskites, thus playing a pivotal role for the development of…”
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Luminescence decay and the absorption cross section of individual single-walled carbon nanotubes by Berciaud, Stéphane, Cognet, Laurent, Lounis, Brahim

“…The absorption cross section of highly luminescent individual single-walled carbon nanotubes is determined using time-resolved and cw luminescence…”
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Spectroscopic signatures of spin-orbit coupling and free excitons in individual suspended carbon nanotubes by Gandil, Morgane, Matsuda, Kazunari, Lounis, Brahim, Tamarat, Philippe

“…We investigate the intrinsic magneto-optical properties of suspended single-walled carbon nanotubes of various chiralities, using a combination of spectrally…”
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Photothermal microscopy: optical detection of small absorbers in scattering environments by VERMEULEN, PIERRE, COGNET, LAURENT, LOUNIS, BRAHIM

“…Summary Photothermal microscopy enables detection of nanometer‐sized objects solely based on their absorption. This technique allows efficient observation of…”
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Universal scaling laws for charge-carrier interactions with quantum confinement in lead-halide perovskites by Tamarat, Philippe, Prin, Elise, Berezovska, Yuliia, Moskalenko, Anastasiia, Nguyen, Thi Phuc Tan, Xia, Chenghui, Hou, Lei, Trebbia, Jean-Baptiste, Zacharias, Marios, Pedesseau, Laurent, Katan, Claudine, Bodnarchuk, Maryna I., Kovalenko, Maksym V., Even, Jacky, Lounis, Brahim

“…Lead halide perovskites open great prospects for optoelectronics and a wealth of potential applications in quantum optical and spin-based technologies. Precise…”
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Brownian Motion of Stiff Filaments in a Crowded Environment by Fakhri, Nikta, MacKintosh, Frederick C, Lounis, Brahim, Cognet, Laurent, Pasquali, Matteo

“…The thermal motion of stiff filaments in a crowded environment is highly constrained and anisotropic; it underlies the behavior of such disparate systems as…”
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Endocytic Trafficking and Recycling Maintain a Pool of Mobile Surface AMPA Receptors Required for Synaptic Potentiation by Petrini, Enrica Maria, Lu, Jiuyi, Cognet, Laurent, Lounis, Brahim, Ehlers, Michael D., Choquet, Daniel

“…At excitatory glutamatergic synapses, postsynaptic endocytic zones (EZs), which are adjacent to the postsynaptic density (PSD), mediate clathrin-dependent…”
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Revealing the Exciton Fine Structure in Lead Halide Perovskite Nanocrystals by Hou, Lei, Tamarat, Philippe, Lounis, Brahim

“…Lead-halide perovskite nanocrystals (NCs) are attractive nano-building blocks for photovoltaics and optoelectronic devices as well as quantum light sources…”
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Carrier Multiplication in a Single Semiconductor Nanocrystal by Hu, Fengrui, Lv, Bihu, Yin, Chunyang, Zhang, Chunfeng, Wang, Xiaoyong, Lounis, Brahim, Xiao, Min

“…To confirm the existence of the carrier multiplication (CM) effect and estimate its generation efficiency of multiple excitons in semiconductor nanocrystals…”
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All-optical trion generation in single-walled carbon nanotubes by Santos, Silvia M, Yuma, Bertrand, Berciaud, Stéphane, Shaver, Jonah, Gallart, Mathieu, Gilliot, Pierre, Cognet, Laurent, Lounis, Brahim

“…We present evidence of all-optical trion generation and emission in pristine single-walled carbon nanotubes (SWCNTs). Luminescence spectra, recorded on…”
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Observation of Intrinsic Size Effects in the Optical Response of Individual Gold Nanoparticles by Berciaud, Stéphane, Cognet, Laurent, Tamarat, Philippe, Lounis, Brahim

“…The photothermal heterodyne imaging method is used to study for the first time the absorption spectra of individual gold nanoparticles with diameters down to 5…”
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Surface Mobility of Postsynaptic AMPARs Tunes Synaptic Transmission by Heine, Martin, Groc, Laurent, Frischknecht, Renato, Béïque, Jean-Claude, Lounis, Brahim, Rumbaugh, Gavin, Huganir, Richard L, Cognet, Laurent, Choquet, Daniel

“…AMPA glutamate receptors (AMPARs) mediate fast excitatory synaptic transmission. Upon fast consecutive synaptic stimulation, transmission can be depressed…”
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A solid state source of photon triplets based on quantum dot molecules by Khoshnegar, Milad, Huber, Tobias, Predojević, Ana, Dalacu, Dan, Prilmüller, Maximilian, Lapointe, Jean, Wu, Xiaohua, Tamarat, Philippe, Lounis, Brahim, Poole, Philip, Weihs, Gregor, Majedi, Hamed

“…Producing advanced quantum states of light is a priority in quantum information technologies. In this context, experimental realizations of multipartite photon…”
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A Highly Specific Gold Nanoprobe for Live-Cell Single-Molecule Imaging by Leduc, Cécile, Si, Satyabrata, Gautier, Jérémie, Soto-Ribeiro, Martinho, Wehrle-Haller, Bernhard, Gautreau, Alexis, Giannone, Grégory, Cognet, Laurent, Lounis, Brahim

“…Single molecule tracking in live cells is the ultimate tool to study subcellular protein dynamics, but it is often limited by the probe size and…”
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Transport of fibroblast growth factor 2 in the pericellular matrix is controlled by the spatial distribution of its binding sites in heparan sulfate by Duchesne, Laurence, Octeau, Vivien, Bearon, Rachel N, Beckett, Alison, Prior, Ian A, Lounis, Brahim, Fernig, David G

“…The heparan sulfate (HS) chains of proteoglycans are a key regulatory component of the extracellular matrices of animal cells, including the pericellular…”
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Absorption Spectroscopy of Individual Single-Walled Carbon Nanotubes by Berciaud, Stéphane, Cognet, Laurent, Poulin, Philippe, Weisman, R. Bruce, Lounis, Brahim

“…Current methods for producing single-walled carbon nanotubes (SWNTs) lead to heterogeneous samples containing mixtures of metallic and semiconducting species…”
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Short Gold Nanorod Growth Revisited: The Critical Role of the Bromide Counterion by Si, Satyabrata, Leduc, Cecile, Delville, Marie-Hélène, Lounis, Brahim

“…A one‐step, surfactant‐assisted, seed‐mediated method has been utilized for the growth of short gold nanorods with reasonable yield by modifying an established…”
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