Single-Grain High-Efficiency Full-Visible-Spectrum White Emitters.

Full-visible-spectrum emission phosphors are promising candidates for next-generation white light-emitting diodes (WLEDs), overcoming the complex and high costs of traditional mixed phosphors. However, their practical application is hindered by low luminescence efficiency. In this regard, a generalization strategy is developed that involves creating heterostructure interfaces to prevent detrimental energy transfer processes, thereby boosting efficiency.