用于紫外线成像和无线报警的水凝胶基可伸缩、高稳定性和高性能的光电传感器  

Stretchable,stable and high-performance optoelectronic sensors based on hydrogel for ultraviolet imaging and wireless alarm

作　　者：洪杰钊 姚帝杰 王浩 丁琼玲 罗艺冰 于家豪 张鹤 曾令兴 杨柏儒 王冰 陶凯 吴进 Jiezhao Hong;Dijie Yao;Hao Wang;Qiongling Ding;Yibing Luo;Jiahao Yu;He Zhang;Lingxing Zeng;Boru Yang;Bing Wang;Kai Tao;Jin Wu(State Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology,School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou 510275,China;Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace,Northwestern Polytechnical University,Xi’an 710072,China;Research&Development Institute of Northwestern Polytechnical University in Shenzhen,Northwestern Polytechnical University,Shenzhen 518063,China;State Key Laboratory of Transducer Technology,Shanghai 200050,China;Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing,National Engineering Research Center of Novel Equipment for Polymer Processing,Key Laboratory of Polymer Processing Engineering(SCUT)Ministry of Education,South China University of Technology,Guangzhou 510641,China;Engineering Research Center of Polymer Green Recycling of Ministry of Education,College of Environment and Resources,Fujian Normal University,Fuzhou 350007,China;State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065,China)

机构地区：[1]State Key Laboratory of Optoelectronic Materials and Technologies and Guangdong Province Key Laboratory of Display Material and Technology,School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou 510275,China [2]Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace,Northwestern Polytechnical University,Xi’an 710072,China [3]Research&Development Institute of Northwestern Polytechnical University in Shenzhen,Northwestern Polytechnical University,Shenzhen 518063,China [4]State Key Laboratory of Transducer Technology,Shanghai 200050,China [5]Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing,National Engineering Research Center of Novel Equipment for Polymer Processing,Key Laboratory of Polymer Processing Engineering(SCUT)Ministry of Education,South China University of Technology,Guangzhou 510641,China [6]Engineering Research Center of Polymer Green Recycling of Ministry of Education,College of Environment and Resources,Fujian Normal University,Fuzhou 350007,China [7]State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu 610065,China

出　　处：《Science China Materials》2024年第6期1926-1937,共12页中国科学（材料科学）（英文版）

基　　金：financial supports from the National Natural Science Foundation of China (61801525);the Independent Fund of the State Key Laboratory of Optoelectronic Materials and Technologies (Sun Yat-sen University,OEMT-2022-ZRC-05);the Opening Project of the State Key Laboratory of Polymer Materials Engineering (Sichuan University,sklpme2023-3-5);Shenzhen Science and Technology Program (JCYJ20220530161809020&JCYJ20220818100415033);the Foundation of the State Key Laboratory of Transducer Technology (SKT2301);the Young Top Talent of Fujian Young Eagle Program of Fujian Province;the Natural Science Foundation of Fujian Province (2023J02013);the National Key R&D Program of China (2022YFB2802051)。

摘　　要：柔性可穿戴的紫外线探测器在个体紫外线暴露监测、智能仿生眼和军事领域受到广泛关注.然而,传统不可拉伸的材料和器件结构设计限制了设备在可动态变形的人体皮肤和非平面表面上的精确监测应用和稳定附着.在本研究中,我们提出了基于氧化铜/碳-水凝胶-氧化锌/碳的新型应变隔离异质结构的本征可拉伸(拉伸应变或弯曲高达150%)紫外线探测器,该探测器具有高灵敏度(开/关比为2100%)、高稳定性(大于4000次循环),以及快速响应和恢复时间(分别为1.5和4 s).值得注意的是,该探测器通过水凝胶桥在氧化铜/碳和氧化锌/碳电极之间引入的p-n结能带结构,以及离子导电水凝胶中I^(-)/I_(3)^(-)的电化学反应机制,显著提高了其载流子效率和紫外线响应强度.本文通过集成传感器与所设计的电路板,进一步开发了一种无线紫外线报警系统,用于紫外线强度超标警报.此外,本文还设计了一种光电传感器阵列,并将其用作视网膜假体,以实现对环境紫外线强度的实时监测和成像.本文基于水凝胶基异质结构为开发可穿戴、可拉伸的光电紫外线传感器单元和成像阵列提供了一种新的可行方法.Flexible and wearable ultraviolet(UV)detectors have received widespread attention in the fields of personal UV exposure monitoring,intelligent bionic eyes and military.However,the non-stretchability of traditional materials and device structure design limits the precise monitoring and stable attachment of devices on dynamically deformable hu-man skin and nonplanar surfaces.Here,intrinsically stretch-able(up to 150%tensile strain or bending)UV detectors based on a novel strain-isolated heterojunction structure of CuO/carbon-hydrogel-ZnO/carbon have been proposed,exhibiting high sensitivity(on/off ratio of 2100%),high stability(>4000 cycles)and fast response and recovery time(1.5 and 4 s,re-spectively).Notably,the introduction of a p-n-junction-like band structure between CuO/carbon and ZnO/carbon elec-trodes with hydrogel bridge and the electrochemical reaction mechanism of I^(-)/I_(3)^(-) in the ion-conductive hydrogel enhance the carrier efficiency and UV response intensity.A wireless UV alarm system is further developed by integrating the sensor with the designed circuit board for excessive UV intensity alarm.An optoelectronic sensor array is also designed and employed as a retinal prosthesis to realize real-time mon-itoring of environmental UV intensity and imaging functions.This work provides a promising approach to develop wearable and stretchable photoelectric UV sensor units and imaging arrays with hydrogel-based heterostructures.

关 键 词：flexible hydrogel sensors stretchable UV sensors UV imaging array optoelectronic sensors wireless alarm 

分 类 号：TQ427.26[化学工程] TP212[自动化与计算机技术—检测技术与自动化装置]