Method and apparatus for detecting infrared radiation with gain
AssigneesNanoholdings, LLC, University of Florida Research Foundation, Inc.
InventorsFranky So, Do Young Kim, Jae Woong Lee, Bhabendra K. Pradhan
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Abstract
Photodetectors, methods of fabricating the same, and methods using the same to detect radiation are described. A photodetector can include a first electrode, a light sensitizing layer, an electron blocking/tunneling layer, and a second electrode. Infrared-to-visible upconversion devices, methods of fabricating the same, and methods using the same to detect radiation are also described. An Infrared-to-visible upconversion device can include a photodetector and an OLED coupled to the photodetector.
Claims64
An infrared (IR)-to-visible upconversion device, comprising:
- a photodetector with gain;
- and
- an organic light-emitting device (OLED) coupled to the photodetector with gain,
- wherein the photodetector with gain comprises:
- a first photodetector electrode;
- a light sensitizing layer on the first photodetector electrode;
- an electron blocking/tunneling layer on the light sensitizing layer;
- and
- a second photodetector electrode on the electron blocking/tunneling layer,
- wherein the electron blocking/tunneling layer is a TAPC/MoO3 stack layer.
A method of forming an IR-to-visible upconversion device, comprising:
- forming a photodetector with gain;
- forming an OLED;
- and
- coupling the OLED to the photodetector with gain, wherein forming the photodetector with gain comprises:
- forming a first electrode;
- forming a light sensitizing layer on the first electrode;
- forming an electron blocking/tunneling layer on the light sensitizing layer, wherein forming the electron blocking/tunneling layer comprises forming a TAPC/MoO3 stack layer;
- and
- forming a second electrode on the electron blocking/tunneling layer.
A method of detecting IR radiation using a photodetector with gain, comprising:
- providing a photodetector with gain, such that IR radiation is incident upon the photodetector with gain,
- wherein the photodetector with gain comprises:
- a first electrode;
- an IR light sensitizing layer on the first electrode;
- an electron blocking/tunneling layer on the light sensitizing layer;
- and
- a second electrode on the electron blocking/tunneling layer,
- wherein the electron blocking/tunneling layer is a TAPC/MoO3 stack layer.
A method of upconverting IR radiation to visible radiation using an IR-to-visible upconversion device, comprising:
- providing an IR-to-visible upconversion device such that IR radiation is incident upon the IR-to-visible upconversion device,
- wherein the IR-to-visible upconversion device comprises:
- a photodetector with gain;
- and
- an organic light-emitting device (OLED) coupled to the photodetector with gain,
- wherein the photodetector with gain comprises:
- a first photodetector electrode;
- an IR light sensitizing layer on the first photodetector electrode;
- an electron blocking/tunneling layer on the light sensitizing layer;
- and
- a second photodetector electrode on the electron blocking/tunneling layer,
- wherein the electron blocking/tunneling layer is a TAPC/MoO3 stack layer.
Dependencies are inferred from the claim text.