Concept
Lampe à incandescence
Publications associées (126)
III-N blue-emitting epi-structures with high densities of dislocations: Fundamental mechanisms for efficiency improvement and applications
Since the dawn of humanity, human beings seeked to light their surroundings for their well-being, security and development. The efficiency of ancient lighting devices, e.g. oil lamps or candles, was in the order of 0.03-0.04% and jumped to 0.4-0.6% with th ...
EPFL2024The mesoglea buffers the physico-chemical microenvironment of photosymbionts in the upside-down jellyfish Cassiopea sp.
Anders Meibom, Niclas Heidelberg Lyndby, Michael Kühl
IntroductionThe jellyfish Cassiopea has a conspicuous lifestyle, positioning itself upside-down on sediments in shallow waters thereby exposing its photosynthetic endosymbionts (Symbiodiniaceae) to light. Several studies have shown how the photosymbionts b ...
FRONTIERS MEDIA SA2023Perceived glare from the sun behind tinted glazing: Comparing blue vs. color-neutral tints
Marilyne Andersen, Andreas Schueler, Jan Wienold, Sneha Jain, Maxime Lagier
While the influence of a glare source's spectrum on sensitivity to discomfort glare has been demonstrated repeatedly under electric light conditions, it has not yet been studied under actual daylit conditions. To investigate the influence of spectral alter ...
2023Daylightful indoors – what we see and what we perceive
Natural light greatly impacts how a building is experienced by its occupants. It affects their well-being, notably from their health and biological clock perspectives, but also their perceived visual and thermal comfort, or their emotional response. This l ...
2023Daylightful indoors beyond what eyes can see
Natural light greatly impacts how a building is experienced by its occupants. It affects their well-being, notably from their health and biological clock perspectives, but also their perceived visual and thermal comfort, or their emotional response. If w ...
2023Buried Interface Engineering Enables Efficient and 1,960-hour Isos-L-2i Stable Inverted Perovskite Solar Cells
Michael Graetzel, Shaik Mohammed Zakeeruddin, Ursula Röthlisberger, Felix Thomas Eickemeyer, Virginia Carnevali, Mathias Dankl, Nikolaos Lempesis, Lorenzo Agosta, Xiong Li, Mingyang Wei, Lin Li
High-performance perovskite solar cells (PSCs) typically require interfacial passivation, yet this is challenging for the buried interface, owing to the dissolution of passivation agents during the deposition of perovskites. Here, we overcome this limitati ...
Zenodo2023