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In an n type semiconductor at T 300 K, the electron concentration varies linearly from 1017 to 3 x 1016 cm3 over a distance of 0.72 cm. Calculate the diffusion current density if the electron diffusion coefficient is 268 cm2/s. An electric field of 137 V/cm is applied across an n type semiconductor sample and the minority carriers are being injected to the sample at a point. The field moves these carriers a distance of 0.4 cm in 10 us. find the drift velocity and the diffusivity of the minority carriers

In an n type semiconductor at T 300 K, the electron concentration varies linearly from 1017 to 3 x 1016 cm3 over a distance of 0.72 cm. Calculate the diffusion current density if the electron diffusion coefficient is 268 cm2/s. An electric field of 137 V/cm is applied across an n type semiconductor sample and the minority carriers are being injected to the sample at a point. The field moves these carriers a distance of 0.4 cm in 10 us. find the drift velocity and the diffusivity of the minority carriers

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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In an n type semiconductor at T 300 K, the electron concentration varies linearly from 1017 to 3 x 1016 cm3 over a distance of 0.72 cm. Calculate the diffusion current density if the electron diffusion coefficient is 268 cm2/s. An electric field of 137 V/cm is applied across an n type semiconductor sample and the minority carriers are being injected to the sample at a point. The field moves these carriers a distance of 0.4 cm in 10 us. find the drift velocity and the diffusivity of the minority carriers
Transcribed Image Text:In an n type semiconductor at T 300 K, the electron concentration varies linearly from 1017 to 3 x 1016 cm3 over a distance of 0.72 cm. Calculate the diffusion current density if the electron diffusion coefficient is 268 cm2/s. An electric field of 137 V/cm is applied across an n type semiconductor sample and the minority carriers are being injected to the sample at a point. The field moves these carriers a distance of 0.4 cm in 10 us. find the drift velocity and the diffusivity of the minority carriers
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