US 12,153,032 B2
Interconnected corrugated carbon-based network
Veronica Strong, Portland, OR (US); Maher F. El-Kady, Los Angeles, CA (US); and Richard B. Kaner, Pacific Palisades, CA (US)
Assigned to The Regents of the University of California, Oakland, CA (US)
Filed by The Regents of the University of California, Oakland, CA (US)
Filed on Jul. 25, 2022, as Appl. No. 17/872,380.
Application 15/427,210 is a division of application No. 13/725,073, filed on Dec. 21, 2012, abandoned.
Application 17/872,380 is a continuation of application No. 16/791,504, filed on Feb. 14, 2020, granted, now 11,397,173.
Application 16/791,504 is a continuation of application No. 15/427,210, filed on Feb. 8, 2017, granted, now 10,648,958.
Claims priority of provisional application 61/578,431, filed on Dec. 21, 2011.
Prior Publication US 2023/0194492 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01N 33/00 (2006.01); B32B 3/26 (2006.01); B32B 3/28 (2006.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01); B32B 18/00 (2006.01); B32B 27/32 (2006.01); C01B 32/23 (2017.01); G21K 5/02 (2006.01); H01B 1/04 (2006.01)
CPC G01N 33/0037 (2013.01) [B32B 3/26 (2013.01); B32B 3/28 (2013.01); B32B 9/007 (2013.01); B32B 9/041 (2013.01); B32B 9/045 (2013.01); B32B 18/00 (2013.01); B32B 27/32 (2013.01); C01B 32/23 (2017.08); G21K 5/02 (2013.01); H01B 1/04 (2013.01); B32B 2307/202 (2013.01); B32B 2307/732 (2013.01); B32B 2307/75 (2013.01); B32B 2429/02 (2013.01); B32B 2457/00 (2013.01); B32B 2457/08 (2013.01); B32B 2457/10 (2013.01); B32B 2457/12 (2013.01); B32B 2457/20 (2013.01); C04B 2237/086 (2013.01); C04B 2237/363 (2013.01); C04B 2237/592 (2013.01); C04B 2237/72 (2013.01); Y02A 50/20 (2018.01)] 19 Claims
OG exemplary drawing
 
1. A method of producing a material comprising patterned interconnected corrugated carbon-based network, comprising:
a. receiving a substrate having a carbon-based oxide film;
b. irradiating the carbon-based oxide film with a light beam to reduce and expand portions of the carbon-based oxide film, thereby forming the material comprising a plurality of expanded and interconnected carbon layers that are electrically conductive; and
c. selectively tuning the electrical conductivity of the material by one of:
i. increasing a gray-scale level of the light beam, wherein increasing the gray-scale level of the light beam decreases a sheet resistance of the material; or
ii. irradiating the carbon-based oxide film with the light beam two or more times, wherein each subsequent irradiation by the light beam decreases the sheet resistance of the material;
wherein an oxygen content of the material is less than 5%.