Enhanced magnetic and photoelectric properties of BiFeO3 nanoparticles through the induction of structural distortion via Ho doping
摘要
Here, we first study how the structure–activity connection of rhombohedral phase BHxFO (x = 0, 0.01, 0.03, and 0.05) nanoparticles is affected by low concentration Ho ion doping. To help to promote magnetic release in BHxFO, the results show that adding Ho causes internal structural distortion in a way that changes the length and angle of the Fe–O links and also makes the particles smaller. Adding magnetically active Ho3+ ions instead of Bi ions also improves the ferromagnetic coupling between Ho3+ and Fe3+ ions. This changes the behavior from antiferromagnetic to ferromagnetic. Furthermore, timely Ho doping is found to improve the photoelectric performance of BHxFO and efficiently lower its band gap. A broad plan for the doping modification and application promotion of BFO is presented in this paper.
Graphical abstract