Patents
US 12701908 B2: Rapid layer-specific photonic annealing of perovskite thin films
- Granted
- 2026-08-04
- Filed
- 2022-08-04 application 17880843
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Disclosed herein are methods of annealing a perovskite layer, comprising irradiating the perovskite layer with a light source, wherein the light source is a UV light emitting diode or array of UV-LEDs for rapid and large-area exposure without scanning over the perovskite film, wherein the light source emits radiation consisting essentially of wavelengths within 50 nm of the wavelength of maximum absorbance (λmax) of the perovskite layer, thereby annealing the perovskite layer. Also disclosed herein are semiconducting devices and articles of manufacture comprising an annealed perovskite layer made by any of the methods described herein, such as solar cells, light-emitting diodes, photodetectors, thin-film transistors, laser diodes, and combinations thereof.
Source: PTBLXML, file of 2026-08-04 (ipgb20260804.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA 193 patents | US company or organization | Tuscaloosa, AL | The University of Alabama College or university FUZZY medium confidence: same name (governing-board words and legal endings aside) and state | PTBLXML, file of 2026-08-04 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Dawen Li | Tuscaloosa, AL | 4 | PTBLXML, file of 2026-08-04 | |
| Zhongliang Ouyang | Tuscaloosa, AL | 3 | PTBLXML, file of 2026-08-04 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H10K | Organic electric solid-state devices | H10K71/40 | PTBLXML, file of 2026-08-04 |
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.