Physics 116A NotesFall 2003

David E. Pellett

Draft v.0.9

• Notes Copyright 2003 David E. Pellett unless stated otherwise.

• References:

– Text for course:Fundamentals of Electrical Engineering, second edition, by LeonardS. Bobrow, published by Oxford University Press (1996)

– Pierret, Semiconductor Fundamentals, Addison-Wesley (1988)

– Neudeck, The PN Junction Diode, Addison-Wesley (1989)

– Sze, Physics of Semiconductor Devices (1969)

– Ashcroft & Mermin, Solid State Physics, Saunders (1976)

– This set of notes is based largely on the Pierret and Neudeck books,above.

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Outline: Notes for Week of 11/3/03

• Warmup exercise: Drude model of conductor and conductivity

• Semiconductors and the p-n junction diode

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Drude Model and Conductivity

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Example, Prob. 6.7 from Bobrow

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Distributions and Carrier Concentration I

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Distributions and Carrier Concentration II

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Distributions and Carrier Concentration III

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Distributions and Carrier Concentration IV

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Distributions and Carrier Concentration V

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Distributions and Carrier Concentration VI

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Location of Fermi Level

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Current Density

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Invariance of Fermi Leveland Einstein Relationship

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Built-In Potential Difference

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Ideal∗ Diode Equation

∗Careful: text has different definition of ideal diode. This refers to the case

where η = 1 (ideality factor in exponential of diode equation).

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