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Post Reopened by winny, Voltage Spike♦
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Hilbert
Hilbert
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ifenter image description hereif the effective mass of holes in a semiconductor is 5 times that of the electron, at what temperature would the fermi level shift by 15% from the middle of the forbidden energy band? (given that, eg = 1.20 ev.) I attempted the problem and used E_f = E_midgap + (3/4)ln(m_p*/m_e*) And got 865 K .i asked the question to many person .some of them answered 865K,some answered 1730K.please tell me which one is correct.

if the effective mass of holes in a semiconductor is 5 times that of the electron, at what temperature would the fermi level shift by 15% from the middle of the forbidden energy band? (given that, eg = 1.20 ev.) I attempted the problem and used E_f = E_midgap + (3/4)ln(m_p*/m_e*) And got 865 K .i asked the question to many person .some of them answered 865K,some answered 1730K.please tell me which one is correct.

enter image description hereif the effective mass of holes in a semiconductor is 5 times that of the electron, at what temperature would the fermi level shift by 15% from the middle of the forbidden energy band? (given that, eg = 1.20 ev.) I attempted the problem and used E_f = E_midgap + (3/4)ln(m_p*/m_e*) And got 865 K .i asked the question to many person .some of them answered 865K,some answered 1730K.please tell me which one is correct.

Post Closed as "Needs details or clarity" by Voltage Spike♦
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Hilbert
Hilbert
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A problem from shift in the fermi energy level

if the effective mass of holes in a semiconductor is 5 times that of the electron, at what temperature would the fermi level shift by 15% from the middle of the forbidden energy band? (given that, eg = 1.20 ev.) I attempted the problem and used E_f = E_midgap + (3/4)ln(m_p*/m_e*) And got 865 K .i asked the question to many person .some of them answered 865K,some answered 1730K.please tell me which one is correct.