Density of states

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  • čas přidán 19. 08. 2024

Komentáře • 50

  • @NehaGupta-nz4ol
    @NehaGupta-nz4ol Před 5 lety +13

    Best concise way to make command over edc, Nicely explained without tedious mathematics...

    • @cassiusjuan3512
      @cassiusjuan3512 Před 3 lety

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    • @bishopzion2510
      @bishopzion2510 Před 3 lety

      @Cassius Juan instablaster =)

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      @cassiusjuan3512 Před 3 lety

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      @cassiusjuan3512 Před 3 lety

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    • @bishopzion2510
      @bishopzion2510 Před 3 lety

      @Cassius Juan No problem :)

  • @shahidnaveed5408
    @shahidnaveed5408 Před 3 lety +5

    Sir, you are great. ❤

  • @anuj8635
    @anuj8635 Před 5 lety +3

    Great explaination sir .. :)

  • @sandeepkisku5419
    @sandeepkisku5419 Před rokem +2

    Best course for Semiconductor Devices

  • @aeturipadmini1103
    @aeturipadmini1103 Před 5 lety +3

    Great explanation sir

  • @brittokhan5278
    @brittokhan5278 Před rokem +1

    Sir you are an amazing talent.

  • @roniadhikari2724
    @roniadhikari2724 Před 2 lety +1

    Awesome Sir ❤️❤️

  • @megwfc
    @megwfc Před 7 měsíci

    so so so so so grateful to you sir, so much grateful. love you❤❤❤

  • @usualguy7583
    @usualguy7583 Před 4 lety +14

    Links for the notes?

  • @Shubhamoulkargmailcom
    @Shubhamoulkargmailcom Před 4 lety +4

    Sir please see the equation of no. Of electrons. There should be( Ec-Ef)

  • @indrashispowali-hf5tk
    @indrashispowali-hf5tk Před 5 měsíci

    Mindblowing

  • @RajanGupta-fj8fi
    @RajanGupta-fj8fi Před 3 lety +4

    Sir pdf is not given anywhere. Not in nptel site also

  • @louerleseigneur4532
    @louerleseigneur4532 Před 2 lety

    Awesome

  • @shreelakshmiguna6276
    @shreelakshmiguna6276 Před 3 lety +2

    If fermi level(50% probablity of finding electrons) is near valence band means then the valence band should have more electrons ,right?

    • @shivamraj5375
      @shivamraj5375 Před 3 lety +2

      Fermi level shifts according to the type of material. It shifts up in the case of n-type semiconductor and it shifts down in the case of p-type semiconductor,so you can't say so .

    • @samyakgupta1314
      @samyakgupta1314 Před 3 lety +3

      We are talking about Free e-.

    • @akhilrajt
      @akhilrajt Před 2 lety

      You have remember the f(e) vs g(s) graph .If the fe is near vb there will be more overlap to vb in fermi level when we extend the

  • @md.enamulatiq9262
    @md.enamulatiq9262 Před rokem +1

    Sir are you sure that in an intrinsic semiconductor fermi level lies exactly in middle of the bandgap? From textbooks I saw that it depends on hole and electron's effective mass.

  • @Sakshiiiii_Chaudhary
    @Sakshiiiii_Chaudhary Před rokem +1

    From where I can get notes

  • @harveenkaur8404
    @harveenkaur8404 Před 2 lety

    How we know about how much electrons can move to conduction band from valence band .

    • @harveenkaur8404
      @harveenkaur8404 Před 2 lety

      Reply me as soon as possible if I am right
      Ans is It's depend on temp. Or energy

    • @anjanaguruprasad1873
      @anjanaguruprasad1873 Před 5 měsíci

      The number of electrons move from the valence to the condcution band as we excite it, and excitation is posibble if we heat the material by increasing its temparature. Corect me if I am wrong.

  • @manishankarailiga347
    @manishankarailiga347 Před 4 lety +3

    Sir according to Pauli exclusive principle no more than two electrons can occupy same energy state. Then how can there be that many number of states per unit energy. Could u some clear my doubt sir

  • @pavankumarenugula5637
    @pavankumarenugula5637 Před 3 lety

    Very well explaanation😍😍

  • @user-lk9ij4dg5c
    @user-lk9ij4dg5c Před 10 dny

    where the notes of this are available

  • @ParminderKaur-zm4kw
    @ParminderKaur-zm4kw Před 2 lety

    If holes are also electrons, then same electron in VB goes in CB then why is it said that effective mass(e.m)of electron in conduction band is different from e.m of hole in V. B????
    Can any clear my doubt

    • @sunirnaychatterjee8963
      @sunirnaychatterjee8963 Před 2 lety +1

      static mass and effective mass both are different. see lecture 3 & 4

    • @notnemeziz
      @notnemeziz Před 6 měsíci

      because electrons effective mass is affected by the electric field but not in case of holes

    • @frisbee.976
      @frisbee.976 Před 2 dny

      bcs effective mass of electron is due to potential well of atomic lattice which have different effect on that of hole's mass

  • @Upgradezz
    @Upgradezz Před 4 lety +1

    Shoddy!

  • @semonmagdy3953
    @semonmagdy3953 Před rokem

    how can i contact you ??

  • @venkateswararaopattapu6651

    Hole=Proton
    Is it correct sir

    • @sandeepsingh-uc9oo
      @sandeepsingh-uc9oo Před 3 lety +3

      nope

    • @uditbhattacharya4476
      @uditbhattacharya4476 Před 3 lety

      @@xxxxxx-xn3nw What you're talking of are called "phonons" and holes are quasi particles, they're positively charged but they are not protons.

    • @xxxxxx-xn3nw
      @xxxxxx-xn3nw Před 3 lety +2

      @@uditbhattacharya4476 Thank you for correcting me

  • @PriyaYadav-zw4wy
    @PriyaYadav-zw4wy Před 3 lety

    Please if someone have notes say yes

  • @dipjyotiborah8585
    @dipjyotiborah8585 Před 4 lety +1

    subtitles are disturbing

    • @dhirajphuyal2970
      @dhirajphuyal2970 Před 4 lety +3

      You can turn it off manually. I suggest you do so then it'll be much easier.
      Cheers!!