Facility Agriculture: Development of Green Power FacilityDepartment of Materials Science Engineering / Lai, Ying-Chih / Associate Professor
設施農業:綠能設施開發【材料科學與工程學系賴盈至副教授/優聘教師】
 
論文篇名 Self-powered, Self-healed and Shape-adaptive Ultraviolet Photodetectors
期刊名稱 ACS APPLIED MATERIALS & INTERFACES
發表年份,卷數,起迄頁數 2020,12 (8), 9755
作者 Tsai, Meng-Shian; Shen, Tien-Lin; Wu, Hsing-Mei; Liao, Yu-Ming; Liao, Yu-Kuang; Lee, Wen-Ya; Kuo, Hao-Chung; Lai, Ying-Chih(賴盈至)*; Chen, Yang-Fang*
DOI 10.1021/acsami.9b21446
中文摘要 近年來,自我修復設備的出現引起了學術界和業界的極大關注。自我修復的設備可以在發生意外破壞時自動恢復破裂,從而可以有效地延長設備的使用壽命。因此,它們具有增強的耐用性並降低了更換成本。在這項研究中,我們提出了第一個基於瓊脂糖/聚乙烯醇(PVA)雙網絡(DN)水凝膠的集成的自供電,自修復和可穿戴的紫外線(UV)光電偵測器,該偵測器具有以下優點:良好的機械強度,自我修復能力以及多種損壞的耐受性。通過集成DN水凝膠底物,光電檢測器可以在五個癒合週期後恢復90%的初始效率,並且快速癒合時間(僅10 s)。我們相信前所未有的自我修復光電偵測器擴大了電子皮膚設計的未來範圍,並且為下一代可穿戴電子產品的開發提供了新平台。
英文摘要 The emergence of self-healing devices in recent years has drawn a great amount of attention in both academics and industry. Self-healed devices can autonomically restore a rupture as unexpected destruction occurs, which can efficiently prolong the life span of the devices; hence, they have an enhanced durability and decreased replacement cost. As a result, integration of wearable devices with self-healed electronics has become an indispensable issue in smart wearable devices. In this study, we present the first self-powered, self-healed, and wearable ultraviolet (UV) photodetector based on the integration of agarose/poly(vinyl alcohol) (PVA) double network (DN) hydrogels, which have the advantages of good mechanical strength, self-healing ability, and tolerability of multiple types of damage. With the integration of a DN hydrogel substrate, the photodetector enables 90% of the initial efficiency to be restored after five healing cycles, and each rapid healing time is suppressed to only 10 s. The proposed device has several merits, including having an all spray coating, self-sustainability, biocompatibility, good sensitivity, mechanical flexibility, and an outstanding healing ability, which are all essential to build smart electronic systems. The unprecedented self-healed photodetector expands the future scope of electronic skin design, and it also offers a new platform for the development of next-generation wearable electronics.