Printed graphene and its composite with copper for electromagnetic interference shielding applications.

Autor:	Gutierrez D; Space Foundry Inc., San Jose, CA 95133, United States of America., Doshi P; Space Foundry Inc., San Jose, CA 95133, United States of America., Wong HY; Department of Electrical Engineering, San Jose State University, San Jose, CA 95192, United States of America., Nordlund D; Space Foundry Inc., San Jose, CA 95133, United States of America., Gandhiraman RP; Space Foundry Inc., San Jose, CA 95133, United States of America.
Jazyk:	angličtina
Zdroj:	Nanotechnology [Nanotechnology] 2024 Jan 10; Vol. 35 (13). Date of Electronic Publication: 2024 Jan 10.
DOI:	10.1088/1361-6528/ad12e9
Abstrakt:	Advances in mobile electronics and telecommunication systems along with 5G technologies have been escalating the electromagnetic interference (EMI) problem in recent years. Graphene-based material systems such as pristine graphene, graphene-polymer composites and other graphene-containing candidates have been shown to provide adequate EMI shielding performance. Besides achieving the needed shielding effectiveness (SE), the method of applying the candidate shielding material onto the object in need of protection is of enormous importance due to considerations of ease of application, reduced logistics and infrastructure, rapid prototyping and throughput, versatility to handle both rigid and flexible substrates and cost. Printing readily meets all these criteria and here we demonstrate plasma jet printing of thin films of graphene and its composite with copper to meet the EMI shielding needs. SE over 30 dB is achieved, which represents blocking over 99.9% of the incoming radiation. Graphene and its composite with copper yield higher green index compared to pure copper shields, implying reduced reflection of incoming electromagnetic waves to help reduce secondary pollution. (© 2024 IOP Publishing Ltd.)
Databáze:	MEDLINE
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