Flexible photodetectors are ideal for short-range communication in lightweight microintegrated systems.However,lowbonding interface and high-power cost of photosensitive components greatly limit their application in f...Flexible photodetectors are ideal for short-range communication in lightweight microintegrated systems.However,lowbonding interface and high-power cost of photosensitive components greatly limit their application in flexible communication systems.To address this,herein,piezophototronic effect-enhanced sensing components are proposed for flexible photodetectors.This approach leverages the piezophototronic effect to modulate nanoscale charge transport and the precision of electrohydrodynamic direct-writing to achieve controlled nanofiber assembly,thereby enhancing interfacial bonding and overall device performance.By employing electrohydrodynamic direct-writing,a copper-ammonia complex((Cu(NH_(3)))(CN))nanofiber is self-stacked on a zinc oxide(ZnO)nanofiber to construct a zinc oxide and copper ammine complex(ZnO@(Cu(NH_(3)))(CN))photodetector with low static power consumption and high responsiveness through the combined effects of piezoelectricity and fiber self-stacking.The dark current is reduced to 1.12×10^(-7) A,and the static power consumption of the photodetector is also decreased.The responsiveness is up to 13.3 A/W,with response and recovery times of 11 and 9 ms under ultraviolet(UV)light illumination,respectively,fulfilling the requirements for highly sensitive photodetection owing to the high interface bonding.The detector's threshold voltage is tunable,ranging from 6 V for 5 stacking layers to 20 V for 25 stacking layers,thereby allowing the device's performance to be precisely tailored to specific application requirements.Leveraging the exceptional optoelectronic performance of the ZnO@(Cu(NH_(3)))(CN)photodetector,this study expands the application scenarios of flexible photodetectors and demonstrates their potential in the fields of 6G technology and battlefield communication.展开更多
基金financially by National Natural Science Foundation of China(52405424,52275575)Science and Technology Programme of Fujian Province(2024J010011)+1 种基金Shenzhen Science and Technology Plan Project(JSGG20220831094600002)Scientific and Technological Plan Projects in Xiamen(2022CXY0101).
文摘Flexible photodetectors are ideal for short-range communication in lightweight microintegrated systems.However,lowbonding interface and high-power cost of photosensitive components greatly limit their application in flexible communication systems.To address this,herein,piezophototronic effect-enhanced sensing components are proposed for flexible photodetectors.This approach leverages the piezophototronic effect to modulate nanoscale charge transport and the precision of electrohydrodynamic direct-writing to achieve controlled nanofiber assembly,thereby enhancing interfacial bonding and overall device performance.By employing electrohydrodynamic direct-writing,a copper-ammonia complex((Cu(NH_(3)))(CN))nanofiber is self-stacked on a zinc oxide(ZnO)nanofiber to construct a zinc oxide and copper ammine complex(ZnO@(Cu(NH_(3)))(CN))photodetector with low static power consumption and high responsiveness through the combined effects of piezoelectricity and fiber self-stacking.The dark current is reduced to 1.12×10^(-7) A,and the static power consumption of the photodetector is also decreased.The responsiveness is up to 13.3 A/W,with response and recovery times of 11 and 9 ms under ultraviolet(UV)light illumination,respectively,fulfilling the requirements for highly sensitive photodetection owing to the high interface bonding.The detector's threshold voltage is tunable,ranging from 6 V for 5 stacking layers to 20 V for 25 stacking layers,thereby allowing the device's performance to be precisely tailored to specific application requirements.Leveraging the exceptional optoelectronic performance of the ZnO@(Cu(NH_(3)))(CN)photodetector,this study expands the application scenarios of flexible photodetectors and demonstrates their potential in the fields of 6G technology and battlefield communication.
