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Cheng et al., 2022 - Google Patents

Balancing charge injection in quantum dot light-emitting diodes to achieve high efficienciy of over 21%

Cheng et al., 2022

Document ID
12865734593204851071
Author
Cheng C
Sun X
Yao Z
Bi C
Wei X
Wang J
Tian J
Publication year
Publication venue
Science China Materials

External Links

Snippet

Quantum dot light-emitting diodes (QLEDs) have attracted considerable attention in displays owing to their high color purity, wide gamut, narrow emission band, and solution-processed characteristics. However, a major problem of the unbalanced carrier (electrons and holes) …
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    • H01L51/50—Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED];
    • H01L51/52—Details of devices
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    • H01L51/5012—Electroluminescent [EL] layer
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    • H01L51/0079—Metal complexes comprising a IIIB-metal (B, Al, Ga, In or TI), e.g. Tris (8-hydroxyquinoline) gallium (Gaq3)
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