title: SnO2-microtube-assembled cloth for fully flexible self-powered photodetector nanosystems.
abstract: Integrating an energy conversion or storage device with photodetectors into a self-powered system provides a promising route to future devices aimed at reduced size, low weight and high flexibility. We reported here the fabrication of a fully flexible self-powered photodetector nanosystem by integrating a flexible SnO2-cloth-based ultraviolet photodetector with a flexible SnO2-cloth-based lithium-ion battery. The flexible SnO2-cloth-based ultraviolet photodetectors showed fast response to ultraviolet light with excellent flexibility and stability. Using SnO2-on-carbon-cloth as the binder-free anode and commercial LiCoO2/Al foil as the cathode, a flexible full lithium-ion battery was assembled, exhibiting a reversible capacity of 550 mA h g(-1) even after 60 cycles at a current density of 200 mA g(-1) in a potential window of 2-3.8 V. When integrated with and driven by the flexible full battery, the fully flexible self-powered photodetector nanosystem exhibits comparable performance with an analogous externally powered device. Such an integrated nanosystem could serve as a wireless detecting system in large areas, as required in applications such as environmental sensing and biosensing.
authors.affiliation: Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China.
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Hou
authors.forename: Bin
authors.initials: B
authors.lastname: Liu
authors.forename: Xianfu
authors.initials: X
authors.lastname: Wang
authors.forename: Zhuoran
authors.initials: Z
authors.lastname: Wang
authors.forename: Qiufan
authors.initials: Q
authors.lastname: Wang
authors.forename: Di
authors.initials: D
authors.lastname: Chen
authors.forename: Guozhen
authors.initials: G
authors.lastname: Shen
mesh_terms: D000535:Aluminum / Q000737:chemistry; D003035:Cobalt / Q000737:chemistry; D011211:Electric Power Supplies; D004566:Electrodes; D004581:Electronics; D036103:Nanotechnology / Q000295:instrumentation; D010087:Oxides / Q000737:chemistry; D017971:Tin Compounds / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D010087:Oxides; D017971:Tin Compounds; C491691:lithium cobalt oxide; D003035:Cobalt; D000535:Aluminum; C045358:stannic oxide