High Crystallinity Vertical Few-Layer Graphene Grown Using Template Method Assisted ICPCVD Approach.

ABSTRACT: Controllable synthesis of high crystallinity, low defects vertical few-layer graphene (VFLG) is significant for its application in electron emission, sensor or energy storage, etc. In this paper, a template method was introduced to grow high crystallinity VFLG (HCVFLG). A copper mask acted as a template which has two effects in the high-density plasma enhanced deposition which are protecting VFLG from ion etching and creating a molecular gas flow to assist efficient growth. Raman and TEM results confirmed the improved crystallinity of VFLG with the assistance of a copper mask. As a field emitter, the HCVFLG has a large field emission current and a low turn-on field. The maximum field emission current of a single HCVFLG sheet reaches 93 μA which is two orders of magnitude higher than VFLG g

SUBMITTER: Hong T 

PROVIDER: S-EPMC9658688 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature