Direct Plasma-Enhanced-Chemical-Vapor-Deposition Syntheses of Vertically Oriented Graphene Films on Functional Insulating Substrates for Wide-Range Applications

摘要

Graphene has inspired wide-range research interests and practicalapplications due to its intriguing materials properties and versatileapplication prospects. Specifically, vertically oriented graphene (VG)constructed by vertically aligned nanosheets emerges as a unique materialtype, usually achieved through a plasma-enhanced chemical vapor deposition(PECVD) route. The VG films possess abundant exposed active edges, largesurface areas, relatively high electrical conductivity, and excellent thermalproperty in both in-plane and out-of-plane directions. Direct synthesizing ofsuch VG films on various functional substrates enables their transfer-freeintegrations and direct applications in thermal management, sensing, energystorage and conversion, etc. In this review article, it is planned to showcasethe recent advances in direct PECVD growth of VG films on some novelfunctional insulating substrates (e.g., glass, functional ceramics), mainlyin terms of improving the electrical conductivity, enhancing the interfacialadhesion, and graphene growth orientation modulation. Meanwhile, theapplications of the PECVD-derived products in various new fields will alsobe discussed, such as photothermal conversion, switchable windows, lightattenuation in photography, transparent heating, and thermal managementfor high-power devices. Finally, current challenges and future opportunitieswill also be presented regarding controllable syntheses of high-quality VGfilms and practical application explorations in different fields.