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US 9,318,631 B2Granted
Photodiode and method for making the same
AssigneeThe Boeing Company
InventorsLarken E. Euliss, G. Michael Granger, Keith J. Davis, Nicole L. Abueg, Peter D. Brewer, Brett Nosho
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Abstract
A method for manufacturing a photodiode including the steps of providing a substrate, solution depositing a quantum nanomaterial layer onto the substrate, the quantum nanomaterial layer including a number of quantum nanomaterials having a ligand coating, and applying a thin-film oxide layer over the quantum nanomaterial layer.
Claims12
A photodiode comprising:
- a substrate comprising doped germanium and a sulfur-passivated surface;
- a solution-cast quantum nanomaterial layer positioned on said sulfur-passivated surface of said substrate,
- said solution-cast quantum nanomaterial layer comprising a plurality of quantum nanomaterials tuned to absorb radiation within a bandwidth of mid-wavelength infrared and long-wavelength infrared,
- each quantum nanomaterial of said plurality of quantum nanomaterials comprising:
- a core comprising tin-telluride;
- a ligand coating on said core, said ligand coating comprising a metal chalcogenide complex, comprising at least one of tin-sulfide, tin-selenide and tin-telluride;
- and
- a thin-film oxide layer over said solution-cast quantum nanomaterial layer.
5 more elements
A photodiode comprising:
- a substrate comprising doped germanium and a sulfur-passivated surface;
- a solution-cast quantum nanomaterial layer positioned on said sulfur-passivated surface of said substrate,
- said solution-cast quantum nanomaterial layer comprising a plurality of quantum nanomaterials tuned to absorb radiation within a bandwidth of mid-wavelength infrared and long-wavelength infrared,
- each quantum nanomaterial of said plurality of quantum nanomaterials comprising:
- a core comprising lead-tin-telluride;
- a ligand coating on said core, said ligand coating comprising a metal chalcogenide complex, comprising at least one of tin-sulfide, tin-selenide and tin-telluride;
- and
- a thin-film oxide layer over said solution-cast quantum nanomaterial layer.
5 more elements
Dependencies are inferred from the claim text.