標題: Self-Powered, Self-Healed, and Shape-Adaptive Ultraviolet Photodetectors
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
Chen, Yang-Fang
電子物理學系
光電工程學系
光電工程研究所
Department of Electrophysics
Department of Photonics
Institute of EO Enginerring
關鍵字: self-healed;self-powered;UV photodetector;soft device;electronic skin
公開日期: 26-Feb-2020
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.
URI: http://dx.doi.org/10.1021/acsami.9b21446
http://hdl.handle.net/11536/153956
ISSN: 1944-8244
DOI: 10.1021/acsami.9b21446
期刊: ACS APPLIED MATERIALS & INTERFACES
Volume: 12
Issue: 8
起始頁: 9755
結束頁: 9765
Appears in Collections:Articles