In situ monitoring of electrical and optoelectronic properties of suspended graphene ribbons during laser-induced morphological changes.

ABSTRACT: Exploring ways to tune and improve the performance of graphene is of paramount importance in creating functional graphene-based electronic and optoelectronic devices. Recent advancements have shown that altering the morphology of graphene can have a pronounced effect on its properties. Here, we present a practical and facile method to manipulate the morphology of a suspended graphene ribbon using a laser to locally induce heating while monitoring its electrical and optoelectronic properties in situ. Electrical measurements reveal that the conductance of suspended graphene transistors can be tuned by modifying its morphology. Additionally, scanning photocurrent measurements show that laser-induced folded graphene ribbons display significantly enhanced localized photocurrent responses

SUBMITTER: Zhang X 

PROVIDER: S-EPMC9418935 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature