L2 | Types of Semiconductors | Intrinsic & Extrinsic Semiconductors || Electronic Devices (AKTU)

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Dr. Sapna Katiyar

Күн бұрын

Пікірлер: 26

@rsingh6216 4 жыл бұрын

Your teaching is very very awesome. Ma'am can you provide lecture notes. It would be a great help for students.

@agathernakiweewa3934 Жыл бұрын

I like it when everyone is asking for notes. so am not alone. Thanks ma

@nskkknagajayanth1199 4 жыл бұрын

Mam ur vedios are having good content and nice explanation It's helping a lot to clear my concepts

@DrSapnaKatiyar 4 жыл бұрын

Thank you so much...

@PizzoKirti Жыл бұрын

mam unit 1 kaha pe khatam hora hai aur unit 2 kis lecture no. se start hai

@101_huzefajohar7 2 жыл бұрын

Mam your videos are very helpful and concepts are well explained

@DrSapnaKatiyar 2 жыл бұрын

Thank you so much... Please subscribe and share with others also...

@Carriminati-s8o 3 жыл бұрын

thanku so much mam

@rishabhdwivedi84 3 ай бұрын

Please mam provide pdf of these topics Mam it will help a lot in my sessional exams It's helpful if I forget any important thing I can read better than forwording Or backwording videos.

@sairaj6654 4 жыл бұрын

Very nice mam

@DrSapnaKatiyar 4 жыл бұрын

Thank you so much. Please subscribe, like and share with others also...

@ankitchaturvedi8802 4 жыл бұрын

Mam plz share notes/ppt. U have said in the lecture-0 that u will..

@ManikKumar0229 4 жыл бұрын

Mam please share ppt

@AnshumanSingh-hp3wn 4 жыл бұрын

Mam if we want to choose one impurity among the different type of impurity then which one we will prefer and why. Also I want to know that why we prefer only third and fifth group of elements as an impurity.

@agathernakiweewa3934 Жыл бұрын

I may say the trivalent and pentavalent (3 an5 ) are used , because when we consider the pure semiconductors that is si and Ge. they are tetravalent. implying they have four electrons in the outer most layer, so to form a p-type we add the 3 electrons to the shell and a hole remains to make 8. Yet if phosphorous is induced as an impurity, it fills up the outer layer and the remaining electron forms a nother. Thus the n-type. The diagrams illustrate well.