公开(公告)号：US20240298521A1

公开(公告)日：2024-09-05

申请号：US18589836

申请日：2024-02-28

申请人： University of Kansas

发明人： Judy Z. Wu ,  Maogang Gong ,  Bo Liu ,  Andrew Shultz

IPC分类号： H10K85/30 ,  B82Y20/00 ,  B82Y40/00 ,  C01B19/00 ,  G01J1/42

CPC分类号： H10K85/381 ,  C01B19/007 ,  G01J1/42 ,  B82Y20/00 ,  B82Y40/00 ,  C01P2002/77 ,  C01P2002/82 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/64 ,  C01P2006/40

摘要： Provided are methods of fabricating photodetectors based on heterostructures comprising graphene and mercury chalcogenide, e.g., HgTe, quantum dots. Embodiments of the methods are able to provide photodetectors that can detect MWIR light, e.g., greater than 3 mm at room temperature with responsivities R* of at least 104 A/W and detectivities D* of at least 1011 Jones. Thus, the present photodetectors outperform existing MWIR photodetectors without the need for cooling. The photodetectors themselves are also encompassed.