{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,26]],"date-time":"2026-04-26T02:11:11Z","timestamp":1777169471315,"version":"3.51.4"},"reference-count":48,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2021,1,9]],"date-time":"2021-01-09T00:00:00Z","timestamp":1610150400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002460","name":"Chung-Ang University","doi-asserted-by":"publisher","award":["Research Scholarship Grants in 2019"],"award-info":[{"award-number":["Research Scholarship Grants in 2019"]}],"id":[{"id":"10.13039\/501100002460","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003695","name":"Korea Institute of Industrial Technology","doi-asserted-by":"publisher","award":["KITECH JA\u201020\u20100001"],"award-info":[{"award-number":["KITECH JA\u201020\u20100001"]}],"id":[{"id":"10.13039\/501100003695","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Textile-based pressure sensors have garnered considerable interest in electronic textiles due to their diverse applications, including human\u2013machine interface and healthcare monitoring systems. We studied a textile-based capacitive pressure sensor array using a poly(vinylidene fluoride)-co-hexafluoropropylene (PVDF-HFP)\/ionic liquid (IL) composite film. By constructing a capacitor structure with Ag-plated conductive fiber electrodes that are embedded in fabrics, a capacitive pressure sensor showing high sensitivity, good operation stability, and a wide sensing range could be created. By optimizing the PVDF-HFP:IL ratio (6.5:3.5), the fabricated textile pressure sensors showed sensitivity of 9.51 kPa\u22121 and 0.69 kPa\u22121 in the pressure ranges of 0\u201320 kPa and 20\u2013100 kPa, respectively. The pressure-dependent capacitance variation in our device was explained based on the change in the contact-area formed between the multi-filament fiber electrodes and the PVDF-HFP\/IL film. To demonstrate the applicability and scalability of the sensor device, a 3 \u00d7 3 pressure sensor array was fabricated. Due to its matrix-type array structure and capacitive sensing mechanism, multi-point detection was possible, and the different positions and the weights of the objects could be identified.<\/jats:p>","DOI":"10.3390\/s21020442","type":"journal-article","created":{"date-parts":[[2021,1,10]],"date-time":"2021-01-10T23:03:42Z","timestamp":1610319822000},"page":"442","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":35,"title":["Highly Sensitive Textile-Based Capacitive Pressure Sensors Using PVDF-HFP\/Ionic Liquid Composite Films"],"prefix":"10.3390","volume":"21","author":[{"given":"Kyobin","family":"Keum","sequence":"first","affiliation":[{"name":"School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5607-3327","authenticated-orcid":false,"given":"Jae Sang","family":"Heo","sequence":"additional","affiliation":[{"name":"School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea"}]},{"given":"Jimi","family":"Eom","sequence":"additional","affiliation":[{"name":"Advanced Textile R&amp;D Department, Research Institute of Convergence Technology, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Korea"}]},{"given":"Keon Woo","family":"Lee","sequence":"additional","affiliation":[{"name":"School of Electrical and Electronic Engineering, Chung-Ang University, Seoul 06974, Korea"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9617-2541","authenticated-orcid":false,"given":"Sung Kyu","family":"Park","sequence":"additional","affiliation":[{"name":"School of Electrical and Electronic Engineering, Chung-Ang University, Seoul 06974, Korea"}]},{"given":"Yong-Hoon","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, Korea"},{"name":"SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2021,1,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1808786","DOI":"10.1002\/adfm.201808786","article-title":"Textile-Based Wireless Pressure Sensor Array for Human-Interactive Sensing","volume":"29","author":"Nie","year":"2019","journal-title":"Adv. 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