Confused about name of p-n junction? 🤔
Subscribe to my channel Hey guys this is very important question and confusion one! Well just hang on! 😃 In the name, " p-n junction " p stands for positive polarity and n stants for negative polarity. In p-type semiconductor,the intrinsic or pure semiconductor is doped with trivalent impurity and so it has excess of holes(+ve charge) compared to electron, thus it has positive polarity which means positive and hence we call it p-type semiconductor. In n-type semiconductor,the intrinsic semiconductor is doped with pentavalent impurity and so it has excess of electrons compared to the holes, thus it has negative polarity which means negative and hence we call it n-type semiconductor.