Unformatted text preview: Sketch the band-diagram; be sure to include the Fermi levels. 2) In a certain piece of semiconductor, the electron concentration can be found according to the following formula: ݊ሺݔሻ ൌ 10 ଵ ൈ ቀ1 – ݔ ܮ ቁ cm ‐3 2µm 1000 V where ܮ ൌ is the width of the piece. There is also a uniform electric field equal to cm pointing in the positive x-direction. The electron mobility is 1000 V.s cm 2 . Find the direction and magnitude of the electron drift current density, electron diffusion current density, and total current density at ݔ ൌ ଶ . (The system may or may not be in equilibrium)....
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- Spring '07
- Volt, Electric charge, Practice Problem Set, depletion region, Electrical Engineers, drift current density, Prof. B. Jalali