p type holes are the majority carrier and electrons are the minority carrier
while in case of the n type semiconductor the electron re majority carrier and holes are minority carriers.
Now p type and n type and doping represent here
show the diagram there are two types of diode p type and n type and middel part depletion layer and width increase when forword voltage increase show the diagram,left side positive and left side negative side terminal.
left side to represent p type and right side n type and negative electrons are red and positive holes are white
We can convert the silicon crystal into the pn junction
Here this junction is the border where the p-type and n-type region meets and this silicon crystal convert into pn junction
p type and n type meets as the diode because here the p type and n type region act like a two-electrode
understanding the pn junction we can understand all kind of semiconductor device so in this p-type region each circled negative sign represents the trivalent atom the positive sign represent the hole atom.
similar n type represent pentavalent atom and electrons
p side electron are minority carrier and whenever this p,n region are joining electron from the n side start diffusing toward p type
whenever electron enters the p type region then it becomes the minority carrier and surrounded by so many holes
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