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Recently they developed a method to improve the Gauge factor of strain sensors by using Van der Waals layered materials, which increased the sensitivity by at least 500 times compared with metal materials. By using the mutual interaction of the piezoelectric effect and the photoelectric effect, in addition to the improvement of the Gauge factor, the adjustable range of the Gauge factor is also improved, and it specifically demonstrates its application in the daily activities of the human body to capture small vibration perception. There are important contributions to the principles and applications of learning. The innovative result “Giant Gauge factor of Van der Waals material based strain sensors” was published in Nature Communications on April 1st.<\/p>\n\n\n\n In recent years, software robots, remote monitoring, artificial intelligence, and wearable medical instruments have developed rapidly, and there are higher requirements for the flexibility, sensitivity, and low power consumption of the corresponding sensor. Currently, commercial strain sensors are mainly based on metal materials. However, metal has no energy gap, so the gauge factor of a metal strain sensor is generally limited to a small range of 1-5. Although the energy gap strain of traditional semiconductors is adjustable, traditional semiconductor materials are usually very brittle, which also limits the strain detection range of wearable devices. Compared with metal materials and traditional semiconductor materials, Van der Waals layered semiconductor materials have excellent flexibility, optoelectronic properties and piezoelectric properties, and have huge application prospects in energy storage, optoelectronics, sensing, and wearable devices. Based on this, this cross-international and cross-field team proposed a flexible strain sensor based on Van der Waals layered semiconductor materials. Through the mutual interaction of the piezoelectric effect and the photoelectric effect to adjust the concentration and mobility of carriers, it is the first time that the gauge factor can be continuously adjusted in the range of 23-3933. In addition, as shown in the figure below, the Van der Waals flexible sensor can detect tiny vibrations caused by sound and monitor daily human activities, fully demonstrating its potential applications in robotics, remote monitoring, artificial intelligence, and wearable medical care. prospect.<\/p>\n\n\n\n Wenjie Yan, Huei-Ru Fuh, Yanhui Lv, Ke-Qiu Chen, Tsung-Yin Tsai, Yuh-Renn Wu, Tung-Ho Shieh, Kuan-Ming Hung*, Juncheng Li, Duan Zhang, Cormac \u00d3 Coile\u00e1in, Sunil K. Arora, Zhi Wang, Zhaotan Jiang, Ching-Ray Chang, and Han-Chun Wu*,\u201cGiant Gauge factor of Van der Waals material based strain sensors\u201d,Nature Communications volume 12, Article number: 2018 (2021).<\/p>\n\n\n\n \u6587\u7ae0\u9023\u7d50\uff1ahttps:\/\/www.nature.com\/articles\/s41467-021-22316-8<\/p>\n","protected":false},"excerpt":{"rendered":" \u53f0\u7063\u5927\u5b78\u61c9\u7528\u7269\u7406\u7814\u7a76\u6240\u8207\u96fb\u5b50\u5de5\u7a0b\u5b78\u7814\u7a76\u6240\u5f35\u6176\u745e\u6559\u6388\u53ca\u5176\u535a\u58eb\u751f… <\/p>\n","protected":false},"author":1,"featured_media":1220,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1219","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/posts\/1219","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/comments?post=1219"}],"version-history":[{"count":2,"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/posts\/1219\/revisions"}],"predecessor-version":[{"id":1222,"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/posts\/1219\/revisions\/1222"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/media\/1220"}],"wp:attachment":[{"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/media?parent=1219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/categories?post=1219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yrwu-wk.ee.ntu.edu.tw\/index.php\/wp-json\/wp\/v2\/tags?post=1219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"http:\/\/yrwu-wk.ee.ntu.edu.tw\/wp-content\/uploads\/2021\/04\/1235-1024x562.png\")
<\/figure>\n\n\n\n