White working-class girls are being overlooked in efforts to tackle underachievement in schools across England, education leaders have said. Since 2019, the number of low-income, white British girls ...

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Passivation with a bifunctional fluorinated ligand stabilizes mixed-halide perovskite nanocrystals, enabling high-color-purity deep-blue emission (460–470 nm) in LEDs with improved efficiency and ...

Optical modes in a microcavity are tuned reliably over wide spectral ranges via boundary-shape deformations. The technique developed by Ren et al. promises seminal efficiency enhancement for nonlinear ...