InterviewSolution
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Answer» Connecting thep-typeregion to thenegative terminalof the battery and then-typeregion to thepositiveterminal corresponds to reverse bias. If a diode is reverse-biased, the voltage at the cathode is comparatively higher than the anode. Therefore, no current will flow until the diode breaks down.Because the p-type material is now connected to the negative terminal of the power supply, the 'holes' in the p-type material are pulled away from the junction, leaving behind charged ions causing the width of the depletion region to increase. Likewise, because the n-type region is connected to the positive terminal, the electrons will also be pulled away from the junction, leaving behind charged ions causing the width of the depletion region to increase. |
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