Sensitive forensic identification and healthy illumination based on ultra-stable Eu3+ doped KCsPbBr3 quantum dots glass ceramics with high color purity

Nowadays, inorganic metal halide perovskite quantum dots (PQDs) glass ceramics have garnered significant attention due to their high stability and color purity. Their exceptional fluorescence properties confer distinct advantages for forensic sensitive identification, particularly in distinguishing skin ridge characteristics. However, current identification methods suffer from low resolution, cumbersome operational procedures, and limited precision. Therefore, this study designed ultra-stable K + -doped CsPbBr 3 quantum dots capable of local growth within Eu 3+ -doped aluminosilicate glass (ASG) ceramics for efficient and sensitive detection of fingerprints, palm prints, and lip prints. Eu 3+ ions were incorporated into CsPbBr 3 PQDs glass-ceramics to achieve dual emission centers (red emission at 617 nm and green emission at 517 nm). As a green light source with an exceptionally narrow FWHM, CsPbBr 3 PQDs glass-ceramics demonstrate potential applications in sensitive forensic detection due to their high color purity.