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| Laboratoire d'énergie moléculaire, photonie et matériaux (LEM) | |
|---|---|
| Name | Laboratoire d'énergie moléculaire, photonie et matériaux (LEM) |
| Established | 20th century |
| Type | Research laboratory |
| Address | Grenoble area, France |
| Affiliations | Université Grenoble Alpes, CNRS |
Laboratoire d'énergie moléculaire, photonie et matériaux (LEM) is a French research laboratory specializing in molecular energy, photonics, and materials science located within the Grenoble research ecosystem. The laboratory combines experimental and theoretical approaches to address challenges in optics, spectroscopy, electrochemistry, and solid-state physics, contributing to technological development in microelectronics, renewable energy, and nanotechnology. LEM engages with national and international institutions to translate fundamental science into applications in photonics, materials engineering, and molecular devices.
LEM traces roots to mid‑20th century research groups associated with Université Grenoble Alpes, Centre national de la recherche scientifique (CNRS), and regional institutes in the Auvergne-Rhône-Alpes region. Its evolution parallels developments at Institut Laue–Langevin, CEA Grenoble, and collaborations with engineering schools such as Grenoble INP and École normale supérieure de Lyon. Over decades LEM merged legacy teams from spectroscopy units, polymer laboratories, and semiconductor groups influenced by milestones like the rise of heterojunction technologies, the expansion of photonics in Europe, and national programs under the French Ministry of Higher Education and Research. Key organizational changes followed partnerships with European Research Council projects and participation in consortia aligned with initiatives from Horizon 2020 and the Labex framework.
LEM is organized into several research teams and technical platforms that reflect disciplinary intersections between chemistry, physics, and engineering. Groups often carry names tied to specialized themes and liaise with units within Université Grenoble Alpes and CNRS institutes such as Institut Néel and Institut des Nanotechnologies de Lyon. Typical teams focus on molecular electrochemistry, nonlinear optics, nanostructured materials, thin films, and device integration, and they collaborate with units associated with Commissariat à l'énergie atomique et aux énergies alternatives (CEA). Leadership and principal investigators include scientists who have trained at institutions like Sorbonne University, École Polytechnique, University of Cambridge, and Massachusetts Institute of Technology.
LEM's portfolio encompasses fundamental and applied projects in photovoltaics, light–matter interaction, organic electronics, and energy conversion. Research threads intersect with topics investigated at Max Planck Institute for Solid State Research, Institute of Photonic Sciences (ICFO), and industrial partners such as STMicroelectronics and Schneider Electric. Projects address perovskite solar cells, organic light‑emitting diodes, surface plasmonics linked to work at ETH Zurich, spintronics influenced by studies at University of California, Berkeley, and ultrafast spectroscopy comparable to programs at Fritz Haber Institute. LEM teams pursue grants from bodies including Agence Nationale de la Recherche (ANR), collaborate in European networks such as COST actions, and contribute to multinational initiatives like Graphene Flagship.
Core facilities at LEM provide cleanroom access, thin film deposition, and nanofabrication tools compatible with standards upheld at facilities like Nanofab centers and regional technology platforms affiliated with Minatec. Instrumentation includes ultrafast laser systems comparable to those at Central Laser Facility, scanning probe microscopes in the tradition of IBM Research, transmission electron microscopes akin to units at EMBL, and spectroscopy suites used by groups at Laboratoire Kastler Brossel. Analytical capabilities cover X‑ray diffraction, Raman and infrared spectrometers, ellipsometry, and electrochemical workstations similar to setups at National Institute of Standards and Technology (NIST).
LEM maintains partnerships with universities, national laboratories, and industry. Collaborators include Université Grenoble Alpes, CNRS, CEA, and international academic partners such as University of Oxford, Technical University of Munich, Tsinghua University, and University of Tokyo. The laboratory engages in technology transfer with companies in microelectronics, photovoltaics, and sensors, and participates in consortiums that involve European Space Agency‑related projects and regional clusters like Minalogic. LEM researchers often coauthor papers with teams from Lawrence Berkeley National Laboratory and contribute to standards shaped by organizations like IEEE.
LEM plays an active role in graduate education, supervising doctoral candidates registered at Université Grenoble Alpes and hosting postdoctoral researchers from programs such as the Marie Skłodowska‑Curie Actions and national fellowships awarded by CNRS. The laboratory contributes to curricula at engineering schools including Grenoble INP and provides internships for students from institutions such as ENS Lyon, University of Manchester, and Politecnico di Milano. Training covers experimental techniques, cleanroom protocols, and research ethics consistent with policies from bodies like Horizon Europe and national doctoral schools.
LEM teams have produced influential publications in journals where groups from Nature Publishing Group, American Chemical Society, and IEEE frequently publish, and contributed breakthroughs in organic photovoltaics, plasmonic sensors, and ultra‑fast spectroscopic characterization. Achievements include advances in molecular redox systems, stabilization strategies for perovskite absorbers drawing parallels to reports from EPFL, and development of hybrid nanostructures inspired by research at CNRS Institut Néel. LEM researchers have been recognized through awards issued by institutions such as European Research Council grants, national prizes from Académie des sciences, and invitations to conferences like SPIE and Materials Research Society meetings.
Category:Research laboratories in France Category:Physics laboratories Category:Materials science institutes