Affiliation of Author(s):[1]Univ Elect Sci & Technol China, Sch Integrated Circuit Sci & Engn, Exemplary Sch Microelect, Chengdu 610054, Peoples R China;[2]Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Device, Chengdu 610054, Peoples R China;[3]Univ Elect Sci & Technol China, Shenzhen Inst Adv Study, Shenzhen 518110, Peoples R China;[4]Univ Elect Sci & Technol China, Sch Elect Sci & Engn, Chengdu 610054, Peoples R China
Journal:CARBON
Key Words:Cu; Graphene; Flash joule heating; Electromagnetic interference shielding
Abstract:Cu particles are limited in their applications due to their susceptibility to oxidation. Here we report a costeffective method for producing Cu particles with oxidation resistance. By heating the mixture of basic cupric carbonate and glucose powders, Cu particles coated with amorphous carbon were achieved. The amorphous carbon was then converted into graphene through flash joule heating (FJH). The conductivity of the final product was 47.1 S/cm after FJH, which remained as 42.3 S/cm even after in hot air for 30 min, i.e., 89.8% conductivity retention. The product was demonstrated for the application of electromagnetic interference (EMI) shielding with an average EMI shielding effectiveness of 12.3 dB and 11.7 dB before and after oxidizing treatment, respectively.
Document Type:Article
Volume:224
ISSN No.:0008-6223
Translation or Not:no