Surya posted an Question
September 09, 2022 β€’ 03:50 am 30 points
  • IIT JAM
  • Physics (PH)

Assume that in an n type semiconductor at t=300k the electron concentration varies linearly from 1 Γ— 108 to 7 Γ— 1017π‘π‘šβˆ’2 over the distance 0.1cm. a) write

Assume that in an n type semiconductor at T=300K the electron concentration varies linearly from 1 Γ— 108 to 7 Γ— 1017π‘π‘šβˆ’2 over the distance 0.1cm. a) Write the definition and derive the equation for diffusion current density. b) Calculate the diffusion current density of the electron. (Diffusion coefficient is 𝐷𝑛 = 22.5π‘π‘š2 /𝑠)

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