Flexible optoelectronics that can be bent,wrapped,and stretched have attracted interest for wearable and mobile applications.In this work,we demonstrate a transparent 360°omnidirectional photodetector(PD)that can...Flexible optoelectronics that can be bent,wrapped,and stretched have attracted interest for wearable and mobile applications.In this work,we demonstrate a transparent 360°omnidirectional photodetector(PD)that can be stretched and wrapped around flexible or curved substrates.By embedding interlaced ZnO and Ag nanowires(NWs)in thermoplastic polyurethane via inkjet printing,the device featured>75%transmittance in the visible region,showing high photoresponsivity and response time(10-30 A/W and 0.8 s,respectively).Moreover,the flexible PD performs well under deformation(only 9%decay in the photocurrent under 60%strain and 8%loss when the device is bent at a radius of 5 mm),which allows it to be readily applied on curved surfaces,such as skin or optical fibers.This study opens the door for the development of flexible optoelectronics that could be implemented in fiber optics,wearable electronics,self-powered systems,bio-signal monitors,and epidermal electronics.展开更多
基金This work was financially supported by the King Abdullah University of Science and Technology(KAUST)Office of Sponsored Research(OSR-2016-CRG5-3005)KAUST Sensor Initiative,KAUST Solar Center,and KAUST baseline funding.
文摘Flexible optoelectronics that can be bent,wrapped,and stretched have attracted interest for wearable and mobile applications.In this work,we demonstrate a transparent 360°omnidirectional photodetector(PD)that can be stretched and wrapped around flexible or curved substrates.By embedding interlaced ZnO and Ag nanowires(NWs)in thermoplastic polyurethane via inkjet printing,the device featured>75%transmittance in the visible region,showing high photoresponsivity and response time(10-30 A/W and 0.8 s,respectively).Moreover,the flexible PD performs well under deformation(only 9%decay in the photocurrent under 60%strain and 8%loss when the device is bent at a radius of 5 mm),which allows it to be readily applied on curved surfaces,such as skin or optical fibers.This study opens the door for the development of flexible optoelectronics that could be implemented in fiber optics,wearable electronics,self-powered systems,bio-signal monitors,and epidermal electronics.
