Please help. In reverse bias we say the negative terminal of the battery attracts holes of the p-type hence depletion zone becomes bigger. Why don't electrons from the negative side of the battery actually move to go and fill the holes then repel electrons in the n-type through the wire and to the battery creating a current in reverse bias?!
Depletion zone is made by electrons from n-type going to p-type then surely electrons from the battery could travel to the holes in the p-type as well instead of just ATTRACTING the holes. Please can someone explain this it is really confusing me.