TY  - JOUR
AU  - SHAO, Peishan
AU  - XIONG, Puxian
AU  - XIAO, Yao
AU  - QIN, Kexin
AU  - SUN, Yongsheng
AU  - CHEN, Kang
AU  - CHEN, Dongdan
AU  - YANG, Zhongmin
PY  - 2022
TI  - UV–Visible–NIR Ultrabroadband Mechanoluminesence from Sr3Y2Ge3O12:Bi3+ and Its Performance Regulation
JO  - Journal of the Chinese Ceramic Society
SN  - 0454-5648
SP  - 3092
EP  - 3102
VL  - 50
IS  - 12
AB  - The existing mechanoluminesence has a single band. The 3P1→1S0 transition of Bi3+ ion can achieve an ultrabroadband emission in UV‒Visible. However, the existing Bi3+ ion activated mechanoluminesence materials only emit blue light. To solve this problem, the UV‒Visible‒NIR ultrabroadband mechanoluminesence is realized in a multi-lattice garnet compound matrix, and its mechanoluminesent performance is regulated by the neighbor ion (i.e., Sc3+ ion) substitution strategy. The luminescence source is determined by steady-state fluorescence spectroscopy (at 465 nm, corresponding to the 3P1→1S0 transition of Bi3+ ion). The mechanism of mechanoluminesence is related to the persistent luminescence. The material defect distribution is obtained by thermoluminescence test, and the deep trap (>0.7 eV) contributes to the mechanoluminesence.
UR  - https://doi.org/10.14062/j.issn.0454-5648.20220410
DO  - 10.14062/j.issn.0454-5648.20220410