TY - JOUR AU - Jooss, Christian AU - Seibt, Michael AU - Wenderoth, Martin AU - Bünermann, Oliver AU - Bunjes, Ole AU - Domröse, Till AU - Eckel, Christian AU - Falorsi, Francesca AU - Flathmann, Christoph AU - de Azagra, Monica Kolek Martinez AU - Krüger, Matthias AU - Lindner, Jonas AU - Meyer, Tobias AU - Ropers, Claus AU - Ross, Ulrich AU - Rossnagel, Kai AU - Lalithambika, Sreeju Sreekantan Nair AU - Techert, Simone AU - Traeger, Georg A. AU - Volkert, Cynthia AU - Weitz, R. Thomas AU - Wodtke, Alec M. TI - Advancing Energy Materials by In Situ Atomic Scale Methods JO - Advanced energy materials VL - 1 SN - 1614-6832 CY - Weinheim PB - Wiley-VCH M1 - PUBDB-2025-00675 SP - 2404280 PY - 2025 AB - Despite significant advancements in materials design for renewable energy devices, the fundamental understanding of the underlying processes in many materials remains limited, particularly in complex, inhomogeneous systems and interfaces. In such cases, in situ studies with high spatial and energy resolution are essential for uncovering new insights into excitation, dissipation, and conversion processes. Recent progress in in situ atomic scale methods has greatly enhanced the understanding of energy materials. Here, key advances are reviewed, including in situ, environmental and ultra-fast transmission electron microscopy, scanning probe techniques, single-photon-resolved infrared spectroscopy, velocity-resolved molecular kinetics, and in situ grazing-incidence X-ray spectroscopy. These techniques enable the study of energy conversion with spatial resolution from nanometers down to individual atoms, energy resolution down to meV, and single-quantum detection. Especially they enable access to processes that involve multiple degrees of freedom, strong coupling, or spatial inhomogeneities. They have driven a qualitative leap in the fundamental understanding of energy conversion processes, opening new avenues for improving existing materials and designing novel clean and efficient energy materials in photovoltaics, friction, and surface chemistry and (photo-)electrochemistry. LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:001470281000013 DO - DOI:10.1002/aenm.202404280 UR - https://bib-pubdb1.desy.de/record/623250 ER -