Other specialized applications also exist or are being developed, including use as semiconductors:
some blue diamonds are natural semiconductors, in contrast to most other diamonds, which are excellent
electrical insulators.[11] The conductivity and blue color originate from the boron impurity.
Boron substitutes for carbon atoms in the diamond lattice, donating a hole into the valence band.
Substantial conductivity is commonly observed in nominally undoped diamond grown by chemical
vapor deposition.[14] This conductivity is associated with hydrogen-related species adsorbed
at the surface, and it can be removed by annealing or other surface treatments.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment