The interface at which p-type silicon and n-type silicon make contact ... zone" that acts as a non-conductive barrier. The PN junction is one of the primary building blocks of semiconductors.

Korean scientists have built a wafer scale radial junction solar cell ... 300 to 1,100 nm,” they explained, adding that the p–n junction was formed radially to separate the absorbed photons.

The chip starts out as a thin wafer of P-type silicon. This is then coated with a layer of silicon dioxide -- kind of a silicon rust, which doesn't conduct electricity. On top of this is placed a ...

Fabrication of resistors, capacitors, p-n junction and Schottky Barrier diodes, BJT's and MOS devices and Integrated circuits. Topics include: silicon structure, wafer preparation, sequential ...