Optoelectronic device with improved light extraction efficiency

US9793431B2 · kind B2 · utility

Assignees

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR
• ALEDIA · FR

Inventors

• Bérangère Hyot · Eybens, FR
• Florian Dupont · Grenoble, FR

Key dates

• Filing date: Apr 20, 2015
• Grant date: Oct 17, 2017
• Expiry date: Apr 20, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10H29/10

Abstract

The optoelectronic device (1) comprises a substrate (2), a light-emitting member (3) comprising an elongate element (4) extending in a direction forming an angle with the substrate (2). An intermediate element (5) is interposed between the substrate (2) and a longitudinal end of the elongate element (4) closest to the substrate (2). Furthermore, the substrate (2) is transparent to said light and the intermediate element (5), transparent to said light, comprises at least one nitride of a transition metal, and has a thickness less than or equal to 9 nm.