Patents
US 12716772 B2: Quantum dots/graphene heterostructures for high-performance uncooled infrared detection
- Granted
- 2026-08-25
- Filed
- 2024-02-28 application 18589836
- Type
- Utility · 13 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
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.
Source: PTBLXML, file of 2026-08-25 (ipgb20260825.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| University of Kansas 437 patents | US company or organization | Lawrence, KS | University of Kansas College or university EXACT high confidence: identical full name and state UNIVERSITY OF KANSAS Federal lobbying client EXACT high confidence: identical full name and state | PTBLXML, file of 2026-08-25 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Judy Z. Wu | Lawrence, KS | 13 | PTBLXML, file of 2026-08-25 | |
| Maogang Gong | Lawrence, KS | 2 | PTBLXML, file of 2026-08-25 | |
| Bo Liu | Lawrence, KS | PTBLXML, file of 2026-08-25 | ||
| Andrew Shultz | Lawrence, KS | PTBLXML, file of 2026-08-25 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01J | Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light; colorimetry; radiation pyrometry | G01J1/42 | PTBLXML, file of 2026-08-25 |
| C01B | Non-metallic elements; compounds thereof; ; metalloids or compounds thereof not covered by subclass c01c | C01B19/007 | PTBLXML, file of 2026-08-25 |
| B82Y | Specific uses or applications of nanostructures; measurement or analysis of nanostructures; manufacture or treatment of nanostructures | B82Y20/00 | PTBLXML, file of 2026-08-25 |
| C01P | Indexing scheme relating to structural and physical aspects of solid inorganic compounds | C01P2002/77 | PTBLXML, file of 2026-08-25 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.