Iontronic dual pressure-humidity sensor based on poly(vinyl alcohol)/phosphoric acid/Ni-Al layered double hydroxide hydrogel@melamine sponge for advanced wearable electronics

IF 5.7 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Research Bulletin Pub Date : 2025-06-01 Epub Date: 2025-02-13 DOI:10.1016/j.materresbull.2025.113357

Vuong Dinh Trung , Weili Zhao , Phuoc-Anh Le , Yinjia Zhang , Yanyan Sun , Jun Natsuki , Jing Tan , Weimin Yang , Toshiaki Natsuki

{"title":"Iontronic dual pressure-humidity sensor based on poly(vinyl alcohol)/phosphoric acid/Ni-Al layered double hydroxide hydrogel@melamine sponge for advanced wearable electronics","authors":"Vuong Dinh Trung , Weili Zhao , Phuoc-Anh Le , Yinjia Zhang , Yanyan Sun , Jun Natsuki , Jing Tan , Weimin Yang , Toshiaki Natsuki","doi":"10.1016/j.materresbull.2025.113357","DOIUrl":null,"url":null,"abstract":"<div><div>The development of flexible and compressible multifunctional sensors for integration into artificial intelligence systems represents a critical advancement in next-generation electronics. This study introduces a cost-effective method for fabricating a compressible, humidity-sensitive conductive sponge applied for dual pressure-humidity sensing. The multifunctional sensor is based on novel poly(vinyl alcohol)/phosphoric acid/Ni-Al layered double hydroxide@melamine (PVA/HP/Ni-Al LDH@ME) sponges, developed via a multi-step dip-coating process. It provides two main functions: compressive junction sensing, which detects minute motion due to an increase in conductive pathways under pressure, with gauge factors from 1.08−5.72 over a 0 − 85 % strain range and high sensitivity (0.09−15.37 kPa<sup>–1</sup>); and humidity sensing based on moisture-induced potential (∼0.5 V) generated by hydroxyl gradients and water diffusion within its porous structure. The iontronic sensor shows potential for on-site detection of human body deformations, humidity-responsive electronic skin, wearable breathing monitors, as well as dual pressure-humidity energy harvesting, thereby advancing multifunctional wearables for artificial intelligence applications.</div></div>","PeriodicalId":18265,"journal":{"name":"Materials Research Bulletin","volume":"186 ","pages":"Article 113357"},"PeriodicalIF":5.7000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Research Bulletin","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0025540825000650","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/13 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

The development of flexible and compressible multifunctional sensors for integration into artificial intelligence systems represents a critical advancement in next-generation electronics. This study introduces a cost-effective method for fabricating a compressible, humidity-sensitive conductive sponge applied for dual pressure-humidity sensing. The multifunctional sensor is based on novel poly(vinyl alcohol)/phosphoric acid/Ni-Al layered double hydroxide@melamine (PVA/HP/Ni-Al LDH@ME) sponges, developed via a multi-step dip-coating process. It provides two main functions: compressive junction sensing, which detects minute motion due to an increase in conductive pathways under pressure, with gauge factors from 1.08−5.72 over a 0 − 85 % strain range and high sensitivity (0.09−15.37 kPa^–1); and humidity sensing based on moisture-induced potential (∼0.5 V) generated by hydroxyl gradients and water diffusion within its porous structure. The iontronic sensor shows potential for on-site detection of human body deformations, humidity-responsive electronic skin, wearable breathing monitors, as well as dual pressure-humidity energy harvesting, thereby advancing multifunctional wearables for artificial intelligence applications.

Abstract Image

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于聚乙烯醇/磷酸/镍铝层状双氢氧化物hydrogel@melamine海绵的离子电子双压力-湿度传感器，用于先进的可穿戴电子产品

用于集成到人工智能系统中的柔性和可压缩多功能传感器的开发代表了下一代电子技术的关键进步。本研究介绍了一种具有成本效益的可压缩湿敏导电海绵的制造方法。该多功能传感器基于新型聚乙烯醇/磷酸/Ni-Al双层hydroxide@melamine （PVA/HP/Ni-Al LDH@ME）海绵，通过多步骤浸涂工艺开发而成。它提供两个主要功能：压缩结传感，检测由于压力下导电路径增加而引起的微小运动，在0 - 85%的应变范围内，测量系数为1.08 - 5.72，灵敏度高（0.09 - 15.37 kPa-1）；以及基于羟基梯度和水在其多孔结构内扩散产生的水致电位（~ 0.5 V）的湿度传感。离子电子传感器显示出人体变形现场检测、湿度响应电子皮肤、可穿戴呼吸监测器以及双压湿能量收集的潜力，从而推动了多功能可穿戴设备在人工智能应用中的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Materials Research Bulletin 工程技术-材料科学：综合

CiteScore

9.80

自引率

5.60%

发文量

372

审稿时长

42 days

期刊介绍： Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.