WO2026047456 - UV-LED WITH CATHODE WITH ELECTRON GAS LAYER
National phase entry is expected:
Publication Number
WO/2026/047456
Publication Date
05.03.2026
International Application No.
PCT/IB2025/058082
International Filing Date
07.08.2025
Title **
[English]
UV-LED WITH CATHODE WITH ELECTRON GAS LAYER
[French]
DIODE ÉLECTROLUMINESCENTE À ULTRAVIOLET AVEC CATHODE À COUCHE DE GAZ D'ÉLECTRONS
Applicants **
SILANNA UV TECHNOLOGIES PTE LTD
Inventors
ROY NICHOLLS, Jordan
ATANACKOVIC, Petar
Priority Data
63/687,490
27.08.2024
US
Application details
| Total Number of Claims/PCT | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2169 | |
| EPO | Filing, Examination, Granting | 10664 | |
| Japan | Filing, Examination, Granting | 2307 | |
| South Korea | Filing, Examination, Granting | 2385 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
22,265
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Abstract[English]
An LED (e.g., a UV-LED) structure includes a substrate, a first cathode layer, a second cathode layer, a light emitting layer, an anode layer, an anode contact, and a cathode contact. The first cathode layer has a first aluminum composition. The second cathode layer is disposed on top of the first cathode layer and has a second aluminum composition greater than the first aluminum composition. A two-dimensional electron gas (2DEG) layer is formed at an interface between the first cathode layer and the second cathode layer during operation of the LED structure.[French]
Une structure de diode électroluminescente (par exemple, une DEL à UV) comprend un substrat, une première couche de cathode, une seconde couche de cathode, une couche électroluminescente, une couche d'anode, un contact d'anode et un contact de cathode. La première couche de cathode a une première composition d'aluminium. La seconde couche de cathode est disposée sur le dessus de la première couche de cathode et a une seconde composition d'aluminium supérieure à la première composition d'aluminium. Une couche de gaz d'électrons bidimensionnelle (2DEG) est formée à une interface entre la première couche de cathode et la seconde couche de cathode pendant le fonctionnement de la structure de DEL.