SnS2 based Extended-gate Field-Effect Transistor for low voltage pH sensing

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2025-03-28 DOI:10.1016/j.matlet.2025.138475

Uvanesh Kasiviswanathan , Lucky Agarwal , Chandan Kumar , Ajay Kumar Dwivedi , Shweta Tripathi

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引用次数: 0

Abstract

This letter presents a pH sensing device based on ion exchange on the surface of

{SnS}_{2}

thin film for continuous monitoring. The

{SnS}_{2}

sensing membrane is fabricated using the sol–gel synthesis technique and deposited onto an indium tin oxide strip. The ion interaction on the

{SnS}_{2}

surface for pH sensing is an innovative approach in this work. The

{SnS}_{2}

thin film-based extended-gate FET exhibited a remarkable pH sensitivity of

\sim 41.89 mV / pH

, along with outstanding linearity across pH levels ranging from 1 to 11. Additionally, the sensor demonstrates commendable stability across the linearity range, with a minimal drift rate of

\sim 2.1 mV / h

at pH 9.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive