In the introduction of diode in volume III semiconductor it states:
"This forward-bias voltage drop exhibited by the diode is due to the action of the depletion region formed by the P-N junction under the influence of an applied voltage. If no voltage applied is across a semiconductor diode, a thin depletion region exists around the region of the P-N junction, preventing current flow."
The sentence: "If no voltage applied is across a semiconductor diode, a thin depletion region exists around the region of the P-N junction, preventing current flow." Should be corrected as follow:
If no voltage is applied across a semiconductor diode, a thin depletion region exists around the region of the P-N junction, preventing current flow."
And then separated from the paragraph and moved above the following sentence as an independent sentence:
"If a reverse-biasing voltage is applied across the P-N junction, this depletion region expands, further resisting any current through it."
This change makes the thought transition smooth and understandable to the reader.
"This forward-bias voltage drop exhibited by the diode is due to the action of the depletion region formed by the P-N junction under the influence of an applied voltage. If no voltage applied is across a semiconductor diode, a thin depletion region exists around the region of the P-N junction, preventing current flow."
The sentence: "If no voltage applied is across a semiconductor diode, a thin depletion region exists around the region of the P-N junction, preventing current flow." Should be corrected as follow:
If no voltage is applied across a semiconductor diode, a thin depletion region exists around the region of the P-N junction, preventing current flow."
And then separated from the paragraph and moved above the following sentence as an independent sentence:
"If a reverse-biasing voltage is applied across the P-N junction, this depletion region expands, further resisting any current through it."
This change makes the thought transition smooth and understandable to the reader.