Afterglow materials are attracting widespread attention owing to their distinctive and long-
lived optical emission properties which create exciting opportunities in various fields. Recent …

Impurity doping is a promising method to impart new properties to various materials. Due to
their unique optical, magnetic, and electrical properties, rare-earth ions have been …

X‐ray imaging has received sustained attention for healthcare diagnostics and
nondestructive inspection. To develop photonic materials with tunable photophysical …

Persistent luminescence is not affected by background autofluorescence, and thus holds the
promise of high-contrast bioimaging. However, at present, persistent luminescent materials …

High-efficiency blue phosphorescence emission is essential for organic optoelectronic
applications. However, synthesizing heavy-atom-free organic systems having high triplet …

Current X-ray imaging technologies involving flat-panel detectors have difficulty in imaging
three-dimensional objects because fabrication of large-area, flexible, silicon-based …

Optical imaging is an indispensable tool in clinical diagnostics and fundamental biomedical
research. Autofluorescence-free optical imaging, which eliminates real-time optical …

Triplet excitons in organic molecules underscore a variety of processes and technologies as
a result of their long lifetime and spin multiplicity. Organic phosphorescence, which …

Research related to the development and application of luminescent nanoparticles (LNPs)
for chemical and biological analysis and imaging is flourishing. Novel materials and new …

Mechanoluminescence, a smart luminescence phenomenon in which light energy is directly
produced by a mechanical force, has recently received significant attention because of its …