Patent ID: 8795434

Claim:
An apparatus for mass production of graphene, the apparatus comprising: a chamber comprising first and second built-in windows, wherein each window is located on an opposite sidewall of said chamber; a carbon containing gas source configured to deliver a carbon containing gas to said chamber through a carbon containing gas feedline and valve; a tunable high powered laser configured to deliver intermittent pulses of a laser beam at an absorption band compatible with the major absorption bands of the carbon containing gas; a solid substrate with an array of alternating parallel rectangular flat plates and a plurality of gaps positioned inside said chamber, wherein said windows, said tunable high powered laser, and said gaps are linearly aligned such that a laser beam pulse passes through said first window, through said gaps, and out of said chamber through said second window; wherein the size of each gap is selected such that each pulse of said laser beam dissociates carbon atoms from the carbon containing gas in free molecular conditions in said gaps to cause deposition of carbon atoms to the adjacent surfaces confining the plurality of gaps of said substrate to form graphene, and wherein the substrate materials have absorption bands different than the absorption band of the tunable high powered laser to allow full contact of laser and substrate without the possibility of the substrate overheating.