| 학회 |
한국공업화학회 |
| 학술대회 |
2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 |
25권 1호 |
| 발표분야 |
[국제협력] 경상대학교 RIGET 공동 주최 |
| 제목 |
Quantum dot LED with high efficiency and high brightness |
| 초록 |
Colloidal quantum dots (CQDs) are appealing active emitting layer candidate for light-emitting diodes (LED) thanks to their narrow emission linewidth and wide wavelength tunability. Last decades have witnessed tremendous progress in maximizing the energy efficiency of these devices, primarily through optimized charge injection and improved radiative recombination efficiency. The former was achieved through band alignment and mobility engineering in different functional layers of LED, and the latter was enabled by advanced core-shell CQDs syntheses and ligand passivation. These successful strategies have led to nearly 100% internal quantum efficiency (IQE); however, the peak external quantum efficiency (EQE) of well-optimized devices are still limited to 20-30% since most of the emitted photons are trapped inside the LED due to the low light extraction efficiency. In this talk, I will introduce our latest results and thoughts on how to improve the efficiency of LED made from CQDs. |
| 저자 |
Yang Song, Fengjia Fan
|
| 소속 |
Univ. of Science and Technology of China |
| 키워드 |
Quantum dots; LED; Efficiency
|
| E-Mail |
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