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In a very long p-type Si bar with doping concentration Na = 1017 cm-3, excess holes are injected such that excessive concentration of holes at x = 0 is 5 × 1016 cm-3.
The hole concentration at x = 1 μm is _____ × 1017 cm-3. Take μp = 500 cm2/v-s and recombination time constant τ = 10-8 s, kT = 0.0259 eV
    Correct answer is between '1.35,1.39'. Can you explain this answer?
    Verified Answer
    In a very long p-type Si bar with doping concentration Na= 1017cm-3, e...
    Diffusion constant 

    ⇒ Diffusion length 
     
    Hole concentration at any distance x is sum of equillibrium and excess hole concentration
    excess hole concentration varies with the distance x as Δp e-x/Lp
    p = p + Δp e-x/Lp
    Where po = Doping concentration
    Δp = extra hole concentration
    = (1+.379) x 1017
    1.379 × 1017 cm-3
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    In a very long p-type Si bar with doping concentration Na= 1017cm-3, e...
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    In a very long p-type Si bar with doping concentration Na= 1017cm-3, excess holes are injected such that excessive concentration of holes at x = 0 is 5 × 1016cm-3.The hole concentration at x = 1 μm is _____ × 1017cm-3. Take μp= 500 cm2/v-s and recombination time constant τp­= 10-8s, kT = 0.0259 eVCorrect answer is between '1.35,1.39'. Can you explain this answer?
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    In a very long p-type Si bar with doping concentration Na= 1017cm-3, excess holes are injected such that excessive concentration of holes at x = 0 is 5 × 1016cm-3.The hole concentration at x = 1 μm is _____ × 1017cm-3. Take μp= 500 cm2/v-s and recombination time constant τp­= 10-8s, kT = 0.0259 eVCorrect answer is between '1.35,1.39'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about In a very long p-type Si bar with doping concentration Na= 1017cm-3, excess holes are injected such that excessive concentration of holes at x = 0 is 5 × 1016cm-3.The hole concentration at x = 1 μm is _____ × 1017cm-3. Take μp= 500 cm2/v-s and recombination time constant τp­= 10-8s, kT = 0.0259 eVCorrect answer is between '1.35,1.39'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a very long p-type Si bar with doping concentration Na= 1017cm-3, excess holes are injected such that excessive concentration of holes at x = 0 is 5 × 1016cm-3.The hole concentration at x = 1 μm is _____ × 1017cm-3. Take μp= 500 cm2/v-s and recombination time constant τp­= 10-8s, kT = 0.0259 eVCorrect answer is between '1.35,1.39'. Can you explain this answer?.
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