Quantenpunkte, Zusammensetzungen oder Verbundstoffe damit und Elektronische Vorrichtung damit

Details

Veröffentlichungs-Nr.

EP3656833

Aktenzeichen

EP19210980

Anmeldetag

22. November 2019

Veröffentlichung

19. März 2025

Erteilung

19. März 2025

Rechtsraum

EP

IPC

C09K11/02C09K11/56C09K11/70C09K11/88

Abstract

A quantum dot including a seed including a first semiconductor nanocrystal including a first Group II-VI compound, a quantum well surrounding the seed, the quantum well including a second semiconductor nanocrystal including a Group IIIA metal except aluminum and a Group V element, and a shell disposed on the quantum well, the shell including a third semiconductor nanocrystal including a second Group II-VI compound, wherein the quantum dot does not include cadmium, an energy bandgap of the second semiconductor nanocrystal is smaller than an energy bandgap of the first semiconductor nanocrystal and an energy bandgap of the third semiconductor nanocrystal, and an ultraviolet-visible (UV-Vis) absorption spectrum curve of the quantum dot does not have an inflection point within a wavelength range of about 450 nanometers (nm) to about 600 nm, and a quantum dot composite and a device including the same.

Anmelder

Firma

Samsung Display Co., Ltd.

Land

🇰🇷 Südkorea

Fachgebiete