Perovskite light-emitting device, preparation method thereof, and display

US11302886B2 · kind B2 · utility

Assignee

• Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. · CN

Inventors

• Miao DUAN · Lo Wu, CN
• Chiayu Lee · Nanhu, CN
• Chunche HSU · Wenli, CN
• Yongming YIN · Lo Wu, CN
• Yongwei Wu · Longbeilingcun, CN
• Pei JIANG · Tainan, TW
• Bo He · Albany, US

Key dates

• Filing date: Dec 24, 2019
• Grant date: Apr 12, 2022
• Expiry date: May 20, 2040

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2102/331

Abstract

The present application discloses a perovskite light-emitting device, a preparation method thereof, and a display. The perovskite light-emitting device includes a first injection layer, a first transport layer, a light-emitting layer, a second transport layer, and a second injection layer, which are sequentially stacked, wherein the first injection layer includes indium tin oxide, the second injection layer includes carbon nanotubes, the light-emitting layer includes halide perovskite, and light emitted by the light-emitting layer is simultaneously emitted from the first injection layer and the second injection layer. The perovskite light-emitting device of the present application can stably emit light on double sides.