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How can school pupils be introduced to materials science and nanotechnology? Pierfrancesco Riccardi and Claudio Goletti illustrate the advantages of extracurricular activities designed by researchers and teachers.
This Review describes progress in the fabrication of semiconductor quantum-dot structures, which are approaching the ideal single-photon emitter, and highlights the remaining challenges.
Thermally activated escape underlies processes in chemistry, physics and biology. Experiments with levitated nanoparticles now confirm the underlying theory in the hitherto unmapped turnover regime.
Electric polarization is induced in the binary rock salt layer of an ultrathin insulating heterostructure on a metal electrode, and its hysteretic reversal is demonstrated using a combination of atomically resolved scanning probe microscopies.
Lipid-motif-decorated DNA nanocapsules filled with photoresponsive polymers are capable of delivering signalling molecules into target organisms for biological perturbations at high spatiotemporal resolution.
Blocking band-edge absorption of compositionally graded quantum dots with suppressed Auger recombination by pre-existing electrons allows for demonstrating near-zero-threshold optical gain and amplified spontaneous emission at sub-single-exciton pump levels.
A molecule-sized ‘nose’ capable of producing unique fluorescence signatures for different proteins can detect combinations of biomarkers in biofluids, track several binding interactions simultaneously, and identify isoforms in living cells inaccessible to comparable macroscopic analytical devices.
Highly efficient interlayer e–h pair multiplication process in two-dimensional TMD heterostructures leads to strong enhancement of the optoelectronic responsivity.