Vinit Srivatava, Abhay Singh Thakur, Rahul Vaish, Bharat Singh Rajpurohit, Nasser S. Awwad, Hala A. Ibrahium, Imen kebaili, Imed Boukhris
{"title":"Hand drawn capacitive proximity/touch sensors","authors":"Vinit Srivatava, Abhay Singh Thakur, Rahul Vaish, Bharat Singh Rajpurohit, Nasser S. Awwad, Hala A. Ibrahium, Imen kebaili, Imed Boukhris","doi":"10.1007/s10854-025-14591-8","DOIUrl":null,"url":null,"abstract":"<div><p>This study presents an innovative approach to developing capacitive touch and proximity sensors by utilizing a pencil to draw interdigitated capacitors (IDCs) on non-conductive construction materials such as cement, cement fiberboard, stone, and brick. Moving beyond flexible substrates like paper, this work focuses on rigid materials, achieving a linear resistance of approximately 22 Ω/cm on cement. The sensors demonstrate high responsiveness making them suitable for real-time Human-Building Interaction (HBI) applications. Additionally, the sensor exhibits a sensitivity of about 0.04 pF/cm in proximity sensing, highlighting its effectiveness in multi-sensory applications. This low-cost, eco-friendly fabrication method has significant potential to transform HBI use cases by offering a practical, durable solution for constructing touch-sensitive walls and other interactive surfaces.</p></div>","PeriodicalId":646,"journal":{"name":"Journal of Materials Science: Materials in Electronics","volume":"36 11","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science: Materials in Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s10854-025-14591-8","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
This study presents an innovative approach to developing capacitive touch and proximity sensors by utilizing a pencil to draw interdigitated capacitors (IDCs) on non-conductive construction materials such as cement, cement fiberboard, stone, and brick. Moving beyond flexible substrates like paper, this work focuses on rigid materials, achieving a linear resistance of approximately 22 Ω/cm on cement. The sensors demonstrate high responsiveness making them suitable for real-time Human-Building Interaction (HBI) applications. Additionally, the sensor exhibits a sensitivity of about 0.04 pF/cm in proximity sensing, highlighting its effectiveness in multi-sensory applications. This low-cost, eco-friendly fabrication method has significant potential to transform HBI use cases by offering a practical, durable solution for constructing touch-sensitive walls and other interactive surfaces.
期刊介绍:
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.