Glass network engineering of yellow-emitting Ba 2 Sc 2 B 4 O 11 :Ce 3+ glass ceramics for full-spectrum lighting
Source abstract
Abstract
Currently, a full-spectrum illumination scheme based on violet-light-excitation is proposed to meet the pursuit of high-quality and healthy lighting. Unfortunately, the most important yellow phosphors are extremely scarce owing to low absorption efficiency of violet light and low photoluminescence quantum yield (PLQY). Herein, glass network engineering of the B2O3-BaO-Sc2O3 system is developed to fabricate violet-light-excitable yellow-emitting Ba2Sc2B4O11(BSB):Ce3+ glass ceramic (GC) with a record PLQY of 95.0% and superior stability. It is evidenced that optimized [BO3]/[BO4] ratio modifies the glass network structure, creating favorable sites for heterogeneous nucleation during in situ glass crystallization. It promotes the formation of well-crystallized BSB nanocrystals (NCs) within glass matrix, consequently improving the optical performance of the BSB:Ce3+ GC composite. This enables the construction of both light emitting diode (LED) and laser diode (LD) driven full-spectrum light sources with high color rendering index (CRI) exceeding 93, ensuring superior overall color reproduction quality. This exploration in violet-light-excitable GC composite is poised to accelerate the development of ideal sun-like lighting technology.
Source: openalex_inverted_index · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Glass properties and applications · Pigment Synthesis and Properties · Luminescence Properties of Advanced Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
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