Chemiluminescence enhanced by cerium-doped LaF3 nanoparticles through electron-hole annihilation

In this paper, cerium-doped LaF 3 nanoparticles (LaF 3 :Ce NPs) were synthesized and applied in enhancing chemiluminescence (CL) process of NaIO 4 –H 2 O 2 system. The CL intensity was enhanced 42 times compared to that of NaIO 4 –H 2 O 2 system without LaF 3 :Ce NPs. The CL mechanism was systematically investigated and accounted by the annihilation between electron-injected and hole-injected LaF 3 :Ce NPs. Experimental conditions were optimized to obtain the optimum CL. This work introduced a new pathway for enhancing traditional luminescent process through developing advanced nanomaterials .