Method for production of diamond-like carbon film having semiconducting
properties comprises preparing a boron-doped diamond-like carbon (B-DLC)
thin film on a silicon substrate through a radio frequency magnetron
sputtering process, wherein a composite target material formed by
inserting boron tablet as a dopant source in a graphite target is used.
After forming a boron-containing diamond-like carbon film, the thin film
is annealed at a temperature of 500.degree. C. and kept at this
temperature for 10 minutes, and determine its carrier concentration and
resistivity. Thus demonstrated that the polarity of said boron-doped
diamond-like carbon film is p-type semiconductor characteristic. Carrier
concentration can be up to 1.3.times.1018 cm-3, and its resistivity is
about 0.6 .OMEGA.-cm; consequently. The boron-doped semiconducting
diamond-like carbon film having excellent semiconductor property and high
temperature stability according to the invention is best applicable in
solar cell or electronic communication and electrode elements and
equipments.