1.

Which of the following equations represent the correct expression for the shift in the energy levels for the p-n junction?(a) Eo = Ecn – Ecp(b) Eo = Ecp – Ecn(c) Eo = Ecp + Ecn(d) Eo = -Ecp – EcnThis question was posed to me during an online exam.The query is from Band Structure of an Open-Circuited p-n junction topic in chapter Semiconductor-Diode Characteristics of Electronic Devices & Circuits

Answer»

The CORRECT option is (b) EO = Ecp – Ecn

To ELABORATE: The shift in the energy of the energy level will be the difference of the conduction band edge of the p MATERIAL and conduction band edge of n material. In the energy level DIAGRAM, the conduction band edge of p material is higher than that of the n material.



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