Liquid-gate 2D material-on-insulator transistors for sensing applications
Metadatos
Mostrar el registro completo del ítemAutor
Márquez González, Carlos; Fuente Zapico, Elsa; Martínez Mazón, Paula; Galdón Gil, José Carlos; Donetti, Luca; Navarro Moral, Carlos; Gámiz Pérez, Francisco JesúsEditorial
Elsevier
Materia
Graphene 2D materials Biosensors Reliability Liquid-gate transistor Inter-gate coupling
Fecha
2023-07-20Referencia bibliográfica
C. Marquez et al. Liquid-gate 2D material-on-insulator transistors for sensing applications. Solid State Electronics 207 (2023) 108712[https://doi.org/10.1016/j.sse.2023.108712]
Patrocinador
European Union’s Horizon 2020 research and innovation programme under the MSC grant No 895322; Spanish and Andalusian Programs DTS20/00038; P18-RT-4826, PYC-020-RE-023UGR; A-TIC-628-UGR20; PID2020- 119668GB-I00. Funding for open access charge: Universidad de Granada / CBUAResumen
This research investigates the use of 2D materials (specifically graphene) as active channel in liquid-gate
transistors used as detectors of biological targets on functionalized surfaces. However, before these sensors
can be effectively used, it is crucial to establish a reliable sensing platform within two-dimensional materials
as active channels, and to evaluate the fabrication, lithography, and reliability of these devices. In this study,
we analyzed the inter-device variability and reliability of the transistors, as well as the potential factors that
may exacerbate these issues under operative conditions. We performed structural characterization to confirm
the quality of the materials, followed by photolithography and processing to create liquid-gate sensors. We then
conducted electrical evaluations of the devices, which revealed significant reliability issues and inter-device
variability. To address these problems, we propose the use of an intergate-coupling effect that utilizes both
front- and back-gates simultaneously. Our findings have important implications for the design and optimization
of 2D materials-based liquid-gate sensors for biological applications.