Before revision: When a semiconductor device is reverse biased it should not conduct any current, however, due to increased barrier potential, the free electrons on the p side are dragged to the battery's positive terminal, while holes on the n side are dragged to the battery's negative terminal.
After revision: When a semiconductor device is P-n junctLeakage description ion|reverse biased it should not conduct any current, however, due to increased barrier potential, the free electrons on the p side are dragged to the battery's positive terminal, while holes on the n side are dragged to the battery's negative terminal.