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A large-area fabrication approach to achieve three-dimensional architectured metamaterials, with structural features spanning seven orders of magnitude, results in advanced mechanical properties, including high elasticity.
Commercialization of exciton–polariton research as well as investigation of exciting physical phenomena in exciton–polariton condensates relies on improving material properties.
Although exciton–polariton lasers have been experimentally demonstrated in a variety of material systems, robust practical implementations are still challenging. Similarities with atomic Bose–Einstein condensates make the system suitable for chip-based quantum simulators for non-trivial many-body physics.
Ultra-low-power electronic switching of stable exciton–polariton spin states has now been achieved in a semiconductor microcavity. This opens a new route to the integration of spin-based photonics and electronics.
Computer networks, trained with data from delayed-fluorescence materials that have been successfully used in organic light-emitting diodes, facilitate the high-speed prediction of good emitters for display and lighting applications.
This review discusses exciton–polaritons in microcavities and their emerging technological applications, with emphasis on the materials challenges for operation at room temperature.
The spin-switching of optically induced polariton condensates can be externally controlled with an electric field, with switching energies below 0.5 fJ.
Films based on π-stacked carbon nitride polymers are shown to bend rapidly and jump up to 10,000 times their thickness as a result of minimal variations—induced by changes in the ambient humidity or temperature—of absorbed water.
Metal–dielectric Janus colloids subjected to perpendicular a.c. electric fields can self-organize into swarms, chains, clusters and isotropic gases, depending on the frequency of the field.
A large-area fabrication approach to achieve three-dimensional architectured metamaterials, with structural features spanning seven orders of magnitude, results in advanced mechanical properties, including high elasticity.
Excess electrons from intrinsic defects, dopants and photoexcitation play a key role in TiO2 properties. Simulations now predict that excess electrons depend on the exposed anatase surface, the environment and the character of the electron donor.
It is shown that vanadium dioxide thin films can reversibly accommodate hydrogen within their lattice structures, while demonstrating an insulator–metal–insulator phase modulation with hydrogen doping.
A high-throughput virtual screening approach is used to select molecules with efficient, thermally activated delayed fluorescence. The good performance of several selected emitters in organic LED applications has also been confirmed experimentally.
A hydrogel patch delivering a combination of gene, drug and phototherapy leads to complete tumour remission and the absence of tumour recurrence in a colon cancer mouse model.