公开(公告)号：US20190229223A1

公开(公告)日：2019-07-25

申请号：US16372636

申请日：2019-04-02

申请人： University of Central Florida Research Foundation, Inc.

发明人： Debashis Chanda ,  Alireza Safaei ,  Michael Leuenberger

IPC分类号： H01L31/0352 ,  H01L31/101 ,  H01L31/0328 ,  G02B5/00 ,  G02B5/08 ,  H01L27/30 ,  G01N21/552 ,  H01L51/42 ,  H01L31/09 ,  H01L31/0232 ,  G02B5/12 ,  H01L31/054

CPC分类号： H01L31/035209 ,  B82Y20/00 ,  B82Y30/00 ,  G01N21/553 ,  G01N21/554 ,  G01N2021/7773 ,  G02B5/008 ,  G02B5/0866 ,  G02B5/12 ,  H01L27/307 ,  H01L31/0232 ,  H01L31/02327 ,  H01L31/0328 ,  H01L31/0543 ,  H01L31/09 ,  H01L31/101 ,  H01L51/42

摘要： A method is for making an optical detector device. The method may include forming a reflector layer carried by a substrate, forming a first dielectric layer over the reflector layer, and forming a graphene layer over the first dielectric layer and having a perforated pattern therein.

公开(公告)号：US11217738B2

公开(公告)日：2022-01-04

申请号：US16555449

申请日：2019-08-29

申请人： University of Central Florida Research Foundation, Inc.

发明人： Debashis Chanda ,  Michael Leuenberger ,  Alireza Safaei ,  Sayan Chandra

IPC分类号： H01L35/22 ,  G01J5/18 ,  G01J5/26

摘要： Various methods and devices for ultrasensitive infrared photodetection, infrared imaging, and other optoelectronic applications using the plasmon assisted thermoelectric effect in graphene are described. Infrared detection by the photo-thermoelectric uses the generation of a temperature gradient (ΔT) for the efficient collection of the generated hot-carriers. An asymmetric plasmon-induced hot-carrier Seebeck photodetection scheme at room temperature exhibits a remarkable responsivity along with an ultrafast response in the technologically relevant 8-12 μm band. This is achieved by engineering the asymmetric electronic environment of the generated hot carriers on chemical vapor deposition (CVD) grown large area nanopatterned monolayer graphene, which leads to a record ΔT across the device terminals thereby enhancing the photo-thermoelectric voltage beyond the theoretical limit for graphene. The results provide a strategy for uncooled, tunable, multispectral infrared detection.

公开(公告)号：US10312389B2

公开(公告)日：2019-06-04

申请号：US15782948

申请日：2017-10-13

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Debashis Chanda ,  Alireza Safaei ,  Michael Leuenberger

IPC分类号： H01L31/0352 ,  G02B5/12 ,  H01L31/101 ,  H01L31/0232 ,  H01L31/09 ,  H01L51/42 ,  G01N21/552 ,  H01L31/0328 ,  G02B5/00 ,  G02B5/08 ,  H01L27/30 ,  G01N21/77 ,  B82Y20/00 ,  B82Y30/00

摘要： An optical detector device may include a substrate, a reflector layer carried by the substrate, and a first dielectric layer over the reflector layer. The optical detector device may include a graphene layer over the first dielectric layer and having a perforated pattern.

公开(公告)号：US10784387B2

公开(公告)日：2020-09-22

申请号：US16372636

申请日：2019-04-02

申请人： UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION, INC.

发明人： Debashis Chanda ,  Alireza Safaei ,  Michael Leuenberger

IPC分类号： H01L31/0352 ,  G02B5/12 ,  H01L31/101 ,  H01L31/0232 ,  H01L31/09 ,  H01L51/42 ,  G01N21/552 ,  H01L31/0328 ,  G02B5/00 ,  G02B5/08 ,  H01L27/30 ,  H01L31/054 ,  G01N21/77 ,  B82Y20/00 ,  B82Y30/00

摘要： A method is for making an optical detector device. The method may include forming a reflector layer carried by a substrate, forming a first dielectric layer over the reflector layer, and forming a graphene layer over the first dielectric layer and having a perforated pattern therein.