Photodetectors(PDs)play a crucial role in imaging,sensing,communication systems,etc.Graphene(Gr),a leading two-dimensional material,has demonstrated significant potential for photodetection in recent years.However,its...Photodetectors(PDs)play a crucial role in imaging,sensing,communication systems,etc.Graphene(Gr),a leading two-dimensional material,has demonstrated significant potential for photodetection in recent years.However,its relatively weak interaction with light poses challenges for practical applications.The integration of silicon(Si)and perovskite quantum dots(PQDs)has opened new avenues for Gr in the realm of next-generation optoelectronics.This review provides a comprehensive investigation of Gr/Si Schottky junction PDs and Gr/PQD hybrid PDs as well as their heterostructures.The operating principles,design,fabrication,optimization strategies,and typical applications of these devices are studied and summarized.Through these discussions,we aim to illuminate the current challenges and offer insights into future directions in this rapidly evolving field.展开更多
基金support from the National Science Fund for Distinguished Young Scholars(No.52225507)the National Key Research and Development Program of China(No.2021YFF0700402)the Fundamental Research Funds for the Central Universities.
文摘Photodetectors(PDs)play a crucial role in imaging,sensing,communication systems,etc.Graphene(Gr),a leading two-dimensional material,has demonstrated significant potential for photodetection in recent years.However,its relatively weak interaction with light poses challenges for practical applications.The integration of silicon(Si)and perovskite quantum dots(PQDs)has opened new avenues for Gr in the realm of next-generation optoelectronics.This review provides a comprehensive investigation of Gr/Si Schottky junction PDs and Gr/PQD hybrid PDs as well as their heterostructures.The operating principles,design,fabrication,optimization strategies,and typical applications of these devices are studied and summarized.Through these discussions,we aim to illuminate the current challenges and offer insights into future directions in this rapidly evolving field.
