Graphene has garnered significant attention in photodetection due to its exceptional optical,electrical,mechanical,and thermal properties.However,the practical application of two-dimensional(2D)graphene in optoelectro...Graphene has garnered significant attention in photodetection due to its exceptional optical,electrical,mechanical,and thermal properties.However,the practical application of two-dimensional(2D)graphene in optoelectronic fields is limited by its weak light absorption(only 2.3%)and zero bandgap characteristics.Increasing light absorption is a critical scientific challenge for developing high-performance graphene-based photodetectors.Three-dimensional(3D)graphene comprises vertically grown stacked 2D-graphene layers and features a distinctive porous structure.Unlike 2D-graphene,3D-graphene offers a larger specific surface area,improved electrochemical activity,and high chemical stability,making it a promising material for optoelectronic detection.Importantly,3D-graphene has an optical microcavity structure that enhances light absorption through interaction with incoming light.This paper systematically reviews and analyzes the current research status and challenges of 3D-graphene-based photodetectors,aiming to explore feasible development paths for these devices and promote their industrial application.展开更多
基金support from the National Natural Science Foundation of China under Grant(No.62174093)the Ningbo Youth Science and Technology Innovation Leading Talent Project under Grant(No.2023QL006)support from the Shanghai Rising-Star Program(No.21QA1410900)。
文摘Graphene has garnered significant attention in photodetection due to its exceptional optical,electrical,mechanical,and thermal properties.However,the practical application of two-dimensional(2D)graphene in optoelectronic fields is limited by its weak light absorption(only 2.3%)and zero bandgap characteristics.Increasing light absorption is a critical scientific challenge for developing high-performance graphene-based photodetectors.Three-dimensional(3D)graphene comprises vertically grown stacked 2D-graphene layers and features a distinctive porous structure.Unlike 2D-graphene,3D-graphene offers a larger specific surface area,improved electrochemical activity,and high chemical stability,making it a promising material for optoelectronic detection.Importantly,3D-graphene has an optical microcavity structure that enhances light absorption through interaction with incoming light.This paper systematically reviews and analyzes the current research status and challenges of 3D-graphene-based photodetectors,aiming to explore feasible development paths for these devices and promote their industrial application.
