Improvement of Visible Photodetection of Chemical Vapor Deposition-Grown MoS₂ Devices via Graphene/Au Contacts.

ABSTRACT: Two-dimensional (2D) molybdenum disulfide (MoS₂) is a promising material for constructing high-performance visible photosensor arrays because of its high mobility and scale-up process. These distinct properties enable the construction of practical optoelectrical sensor arrays. However, contact engineering for MoS₂ films is not still optimized. In this work, we inserted a graphene interlayer between the MoS₂ films and Au contacts (graphene/Au) via the wet-transfer method to boost the device performance. Using graphene/Au contacts, outstanding electrical properties, namely field-effect mobility of 12.06 cm²/V∙s, on/off current ratio of 1.0 × 10⁷, and responsivity of 610 A/W under illumination at 640 nm, were achieved. These favorable res

SUBMITTER: Hwa Y 

PROVIDER: S-EPMC9783588 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature