If you want to generate an explosion at the place where the arrow falls, just set the "explosion" option to true.
You also need to specify the size/radius.
*When using this option you must be careful because if you have the "teleport" option set to true it can cause the death of the player/entity using the bow.*
bows:
explosion-bow:
display-name: "&5&lParticleBow!"
lore:
- "&7Made with <3 by josielcm#8990"
explosion: true
explosion-radius: 5