Semiconductor Diodes - Learn About Electronics

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silicon now has a shortage of valence electrons in its structure, which can also be considered to be a surplus of ‘holes’ or positive charge carriers, whereas the N type layer is doped with atoms having five electrons in its valence shell and therefore has a surplus of electrons, which are negative charge carriers. Diode PN Junction

  Semiconductors, Diode, Electron, Hole, Semiconductor diode