A sprayed graphene transistor platform for rapid and low-cost chemical sensing

被引：6

作者：

Fenech-Salerno, Benji ^{[1
]}

Holicky, Martin ^{[1
]}

Yao, Chengning ^{[1
]}

Cass, Anthony E. G. ^{[1
]}

Torrisi, Felice ^{[1
,2
,3
]}

机构：

[1] Imperial Coll London, Dept Chem Mol Sci Res Hub, 82 Wood Lane, London W12 0BZ, England

[2] Univ Catania, Dipartimento Fis & Astron, Via S Sofia 64, I-95123 Catania, Italy

[3] Catania Univ, CNR IMM, Via S Sofia 64, I-95123 Catania, Italy

来源：

NANOSCALE | 2023年 / 15卷 / 07期

基金：

英国工程与自然科学研究理事会;

关键词：

FIELD-EFFECT TRANSISTOR; ION-SELECTIVE ELECTRODES; ELECTROCHEMICAL BIOSENSORS; PHASE EXFOLIATION; BULK OPTODES; CHALLENGES; GRAPHITE; SENSORS; DEVICES; LIQUID;

D O I：

10.1039/d2nr05838c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate a novel and versatile sensing platform, based on electrolyte-gated graphene field-effect transistors, for easy, low-cost and scalable production of chemical sensor test strips. The Lab-on-PCB platform is enabled by low-boiling, low-surface-tension sprayable graphene ink deposited on a substrate manufactured using a commercial printed circuit board process. We demonstrate the versatility of the platform by sensing pH and Na+ concentrations in an aqueous solution, achieving a sensitivity of 143 +/- 4 mu A per pH and 131 +/- 5 mu A per log(10)Na(+), respectively, in line with state-of-the-art graphene chemical sensing performance.

引用

页码：3243 / 3254

页数：12

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