Tuesday, September 21, 2010

The Semiconductor PN Junction - e's story


Science is a gift of nature 
So is  electronics.Electronics is study of behavior of electron inside materials like semiconductors.Let me take the honor of introducing you to its creator.
Hi, folks this is narrated directly by creator...  e

we electrons are creators of everything. We revolve around a mass as planets in which you live revolve around a energy source, we electrons are carriers of energy but due to our size our energy is limited but we together provide you the energy...
Now I the electron e am going to discuss the formation of a PN junction in a semiconductor.

I was a witness to the formation of a PN junction when my friends were  being removed and inserted by man with/without knowledge. Though we live in different forms in different positions like atoms of different metals, we live like people of India with unity in diversity. We electrons are the origin of conduction….Hence, we control conducting capacity of material.
The excess electrons present in n side due to doping of a semiconductor material with material having excess of us compared to semiconductor material get attracted towards the places of electron deficiency holes in p side due to doping of a semiconductor material with material having less no. of us compared to semiconductor material.
The attraction, between electrons and holes, is like meeting of two long lost friends but it turns out into a nasty war when they get near, a war in which the electrons and holes leave behind heir kith and kin and enter into the war field.

They gain success initially due to recombination of electrons and holes at the cost of losing others, they leave behind their parent atoms, which assume positive and negative charges at n and  p sides. These form an electric field which blocks the way for other electrons and holes to move, like the work of Ottoman Turks when they captured Constantinople. This war left a result like POK in Indo-Pak war, the electrons on n side and holes on other became distant.......

I will discuss the voyages of electrons for new routes and after effects of war in near future.

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