Reliable and highly sensitive biosensor from suspended MoS₂ atomic layer on nano-gap electrodes.

ABSTRACT: The uneven morphology and the trapped charges at the surface of the traditionally used supporting substrate-based 2D biosensors produces a scattering effect, which leads to a irregular signals from individually fabricated devices. Though suspended 2D channel material has the potential to overcome scattering effects from the substrates but achieving reliability and selectivity, have been limiting the using of this biosensor technology. Here, we have demonstrated nanogap electrodes fabrication by using the self-assembly technique, which provides suspension to the 2D-MoS₂. These nano-spacing electrodes not only give suspension but also provide robustness strength to the atomic layer, which remains freestanding after coating of the Hafnium oxide (HfO₂) as well as linkers

SUBMITTER: Masurkar N 

PROVIDER: S-EPMC7568125 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature