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| Pàgina inicial > Articles > Articles publicats > Compact Modeling of pH-Sensitive FETs Based on 2-D Semiconductors |
| Data: | 2021 |
| Resum: | We present a physics-based circuit-compatible model for pH-sensitive field-effect transistors based on 2-D materials. The electrostatics along the electrolyte-gated 2-D-semiconductor stack is treated by solving the Poisson equation, including the site-binding model and the Gouy-Chapman-Stern approach, while the carrier transport is described by the drift-diffusion theory. The proposed model is provided in an analytical form and then implemented in Verilog-A, making it compatible with standard technology computer-aided design tools employed for circuit simulation. The model is benchmarked against two experimental transition-metal-dichalcogenide (MoS2 and ReS2)-based ion sensors, showing excellent agreement when predicting the drain current, threshold voltage shift, and current/voltage sensitivity measurements for different pH concentrations. |
| Ajuts: | Agencia Estatal de Investigación TEC2017-89955-P Agencia Estatal de Investigación RTI2018-097876-B-C21 Agencia Estatal de Investigación PID2020-116518GB-I00 European Commission 825213 European Commission 881603 Ministerio de Economía y Competitividad IJCI-2017-32297 Ministerio de Educación, Cultura y Deporte FPU16/04043 |
| Nota: | Altres ajuts: Reference of the GraphCAT project: 001-P-001702 |
| Drets: | Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets. |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió acceptada per publicar |
| Matèria: | 2-D material ; Electrolyte ; Field-effect transistor (FET) ; Ion-sensitive FET (ISFET) ; Ph sensor ; Transition metal dichalcogenide (TMD) ; Verilog-A |
| Publicat a: | IEEE Transactions on Electron Devices, Vol. 68, Issue 11 (November 2021) , p. 5916-5919, ISSN 0018-9383 |
Postprint 5 p, 733.8 KB |