C2N - Université Paris-Saclay
Feb. 3, 2026
Photovoltaics in France : Stéphane Collin, CNRS researcher at C2N, discusses its challenges in the Chaleur humaine podcast by Le Monde
Solar energy plays a key role in the energy transition, but it raises questions: what are its real environmental impacts? Can we rely on it …
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Jan. 15, 2026
Making nanodevices energy-autonomous
How can we power ever-smaller devices—such as miniaturized sensors or medical implants—without relying on an external energy source? To meet this challenge, researchers are exploring …
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Feb. 9, 2026
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Jan. 15, 2026
Magnetic Whirlpools Create Their Own Rhythms, Revealing New States of Matter
Study in Science shows how tiny magnetic structures can generate exotic quantum-like states on their own.
Physicists at the Centre for Nanoscience and Nanotechnology (C2N), …
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Jan. 7, 2026
Infinite zoom into the infinitely small
This digital artwork, created by Australian artist Luke Conroy and supported by C2N, offers a visual experience based on an infinite zoom—a gradual journey into …
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Nov. 20, 2025
C2N and the University of Chile in Santiago collaborate within the international Poseidon project.
The C2N and the University of Chile in Santiago are working together through an International collaboration called Poseidon, an International Emerging Action project (IEA – …
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Feb. 3, 2026
What place for photovoltaics in France ? Analysis in the CNRS Journal
As photovoltaics are set to play a key role in France’s energy transition, their development raises major scientific, industrial, and societal challenges. In an article …
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Nov. 28, 2025
C2N at the heart of the CNRS “Un temps d’avance” programme
C2N was recently selected to take part in the CNRS national programme “Un temps d’avance”, an initiative designed for public and private decision-makers (elected officials, …
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Dec. 4, 2025
Les Rencontres du C2N : showcasing our expertise and strengthening our shared culture
The second edition of the laboratory’s internal event, C2N Meetings, brought together all staff for a day dedicated to storytelling and highlighting the laboratory’s …
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Jan. 26, 2026
Photovoltaics explained in a comic
To make science accessible to everyone, this comic explains how solar panels work and the challenges of photovoltaics through a clear, colorful, and playful narrative. …
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More C2N News
Research
The centre develops research in the fields of material science, nanophotonics, nanoelectronics, nanobiotechnologies and microsystems, as well as in nanotechnologies. Its research activites cover all the range from fondamental to applied science.
The scientific project revolves around 10 major scientific challenges which are common to the 4 departments and federate research within the laboratory.
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Jobs
Each year, researchers, engineers and technicians from around the world apply for CNRS or Paris-Saclay University positions to carry out their activity at C2N.
A number of internship, PhD position and Post-doc opportunities are also open at C2N.
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Facility
The C2N gathers 3 plateforms into the Technology Facility and 3 platforms of expertise in instrumentation and characterization (optical and multiphysics).
The C2N Technology Facility belongs to the national nanofabrication network (Renatech network).
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Seminars
Sept. 12, 2025 - 10 a.m.
(in french) Groupe Eco-innovation : Actions énergie et procédés au sein du groupe pour limiter l’impact environnemental au CEA-LETI
By Francois BOULARD, Research Director at CEA-LETI, head of the Patterning Department
L'impact environnemental des technologies numériques n'est plus soutenable. Ressources en eau et en minéraux, réchauffement climatique, acidification des océans et des terres, recyclage des déchets …
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Oct. 2, 2025 - 11 a.m.
[Quantum-Saclay seminar] Quantum Materials at Rice University
By Emilia Morosan
Abstract
I will begin by introducing the research activities in the Rice Center for Quantum Materials (RCQM) and outlining potential opportunities for collaboration between RCQM …
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Oct. 6, 2025 - 10 a.m.
(in french) Et si, la Terre était ailleurs ?
By Roland Lehoucq
La science-fiction explore le champ des possibles grâce à des expériences de pensée. Par jeu, demandons-nous avec elle ce que serait devenu l'humanité sur une …
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Oct. 17, 2025 - 10 a.m.
(in french) De l’intention à l’action - mobilisation d'un collectif pour la réduction de son empreinte environnementale : retour d'expérience des laboratoires de l'Institut Pierre-Simon Laplace (IPSL)
By Stéphanie BONIFACE
Mini-cycle séminaires Developpement Durable – 2025
Presentation en Français
Résumé :
Dans ce séminaire, je partagerai un retour d'expérience de l'IPSL en matière de transition environnementale, …
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Nov. 28, 2025 - 10 a.m.
(in french) Repenser l’impact environnemental de la recherche en ingénierie, à partir de l’analyse du cycle de vie des projets de recherche
By Myriam SAADE
Résumé
Face aux enjeux environnementaux, la recherche scientifique française devra s’adapter et accélérer sa transformation. CNRS Ingénierie, Aix- Marseille Université, l’École nationale des ponts et …
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Dec. 12, 2025 - 10 a.m.
(in french) Empreinte carbone du C2N : du calcul à l’action
By Référents Developpement Durable et équipe BEGES(*) 2025 du C2N. [(*) Bilan Emission Gaz à Effet de Serre]
Le bilan carbone du C2N consolidé sur les données 2022, et provisoire pour les données 2023, et 2024 a été établi entre mars et juillet …
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PhD defense
Dec. 16, 2025 - 2 p.m.
Hybrid silicon photonics based on magneto-optical materials
By Kimhong Chao
Jury members:
Mme Giovanna CALÒ - Rapportrice M. Xavier LETARTRE - Rapporteur M. Olivier GAUTHIER-LAFAYE - Examinateur M. François ROYER - Examinateur Mme Nathalie BARDOU …
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Dec. 18, 2025 - 2 p.m.
(in french) Développements technologiques de VeCSEL-GaAs pour l’émission monomode de forte puissance
By Abdelmounaim Harouri
Les technologies de l’information et de la communication ont révolutionné notre monde et ont remodelé nos industries. Les futurs défis de ce secteur comprennent le …
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Dec. 19, 2025 - 2 p.m.
(in french) Spectroscopies des états électroniques et des états de spin excités dans les semi-conducteurs de van der Waals
By Leonnel Romuald SOP
Cette thèse étudie les propriétés électroniques et de spin des semi-conducteurs bidimensionnels de van der Waals, en combinant la résonance de spin électronique (ESR) et …
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HdR defense
June 3, 2025 - 2:15 p.m.
(in french) Modèles multiphysiques non-linéaires de résonateurs à haut facteur de qualité : Applications à l’optimisation d’oscillateurs, de capteurs et de récupérateurs d’énergie
By Alexis Brenes
Les systèmes embarqués, en particulier dans le contexte de l’internet des objets (IoT), requièrent l’utilisation massive de résonateurs pour nombre de leurs fonctions internes: capteurs …
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Oct. 24, 2025 - 2 p.m.
Nanosecond laser ultra-doping : towards an all-silicon superconducting electronics
By Francesca Chiodi
Nanosecond laser annealing is a powerful technique to achieve extremely high doping levels in box-like, monocrystalline, epitaxial layers, with excellent activation levels and few crystalline …
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