Field-Effect Transistor Based on Percolation Network of Reduced Graphene Oxide for Real-Time ppb-Level Detection of Lead Ions in Water
| العنوان: | Field-Effect Transistor Based on Percolation Network of Reduced Graphene Oxide for Real-Time ppb-Level Detection of Lead Ions in Water |
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| المؤلفون: | Haihui Pu, Ren Ren, Yale Wang, Xiaoyu Sui, Bing Jin, Ganhua Lu, Shun Mao, Arnab Maity, Junhong Chen, Jingbo Chang |
| المصدر: | ECS Journal of Solid State Science and Technology. 9:115012 |
| بيانات النشر: | The Electrochemical Society, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | chemistry.chemical_compound, Materials science, Lead (geology), chemistry, Chemical physics, Graphene, law, Percolation, Oxide, Field-effect transistor, Electronic, Optical and Magnetic Materials, Ion, law.invention |
| الوصف: | Real-time lead ion monitoring for drinking water is in an urgent demand, due to the high biotoxicity of lead. We fabricated a reduced graphene oxide (rGO) percolation network based field-effect transistor (FET) by using an easy and scalable micromolding-in-capillary method for lead ion detection in water. The percolation theory analysis elucidates that the required GO mass concentration for a 2D continuum connection converges at a predictable value. Guided by the theoretical analysis, the prepared rGO network was constructed with 1–4 layers of rGO flakes and exhibits comparable electrical properties with single-layer rGO devices. A thin Al2O3 layer was deposited on the device to isolate the analyte from the FET device. With the specific L-Glutathione reduced (GSH) probe, the sensor can reach a limit of detection (LOD) in ppb-level to lead ions. In addition, good selectivity and the high sensing response to Pb2+ concentrations around 15 ppb (maximum contaminant level of lead for drinking water, US Environmental Protection Agency) suggest our sensor holds great potential for lead ion monitoring in drinking water. |
| تدمد: | 2162-8777 2162-8769 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::d9a1b3f757e9f4da449fdd864a1fec7cTest https://doi.org/10.1149/2162-8777/abaaf4Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi...........d9a1b3f757e9f4da449fdd864a1fec7c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21628777 21628769 |
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