Sn2+/Sm3+掺杂硼酸盐玻璃的荧光特性OA

The increasing performance demands on white-light-emitting diodes(white-LEDs)necessitate the devel-opment of novel luminescent materials.Here,a new type of luminescent borate glass for white-LEDs applications was fabricated,based on Sn2+single doping and Sn2+/Sm3+co-doping.The obtained glasses exhibit favorable lumines-cence properties.Under ultraviolet excitation,the Sn2+singly doped glass shows a broad and tunable blue emission band spanning from 300 nm to 500 nm.Co-doping Sm3+,which provides characteristic red-orange emission,enables efficient energy transfer from Sn2+to Sm3+ions(with a transfer efficiency of 41.71%in 2%Sm3+co-doped glass sam-ple),allowing for effective color tuning from blue to white light.Furthermore,temperature-dependent photolumines-cence measurements confirm the excellent thermal recoverability of these luminescent glasses,highlighting their promising potential for application in high-performance white-LEDs.