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A Universal Ternary...
A Universal Ternary-Solvent-Ink Strategy toward Efficient Inkjet-Printed Perovskite Quantum Dot Light-Emitting Diodes
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Wei, C. (författare)
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Su, W. (författare)
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- Li, Jiantong, 1980- (författare)
- KTH,Elektronik och inbyggda system
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visa fler...
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Xu, B. (författare)
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Shan, Q. (författare)
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Wu, Y. (författare)
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Zhang, F. (författare)
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Luo, M. (författare)
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Xiang, H. (författare)
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Cui, Z. (författare)
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Zeng, H. (författare)
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(creator_code:org_t)
- 2022-01-31
- 2022
- Engelska.
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Ingår i: Advanced Materials. - : Wiley. - 0935-9648 .- 1521-4095. ; 34:10, s. 2107798-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Toward next-generation electroluminescent quantum dot (QD) displays, inkjet printing technique has been convinced as one of the most promising low-cost and large-scale manufacturing of patterned quantum dot light-emitting diodes (QLEDs). The development of high-quality and stable QD inks is a key step to push this technology toward practical applications. Herein, a universal ternary-solvent-ink strategy is proposed for the cesium lead halides (CsPbX3) perovskite QDs and their corresponding inkjet-printed QLEDs. With this tailor-made ternary halogen-free solvent (naphthene, n-tridecane, and n-nonane) recipe, a highly dispersive and stable CsPbX3 QD ink is obtained, which exhibits much better printability and film-forming ability than that of the binary solvent (naphthene and n-tridecane) system, leading to a much better qualitied perovskite QD thin film. Consequently, a record peak external quantum efficiency (EQE) of 8.54% and maximum luminance of 43 883.39 cd m−2 is achieved in inkjet-printed green perovskite QLEDs, which is much higher than that of the binary-solvent-system-based devices (EQE = 2.26%). Moreover, the ternary-solvent-system exhibits a universal applicability in the inkjet-printed red and blue perovskite QLEDs as well as cadmium (Cd)-based QLEDs. This work demonstrates a new strategy for tailor-making a general ternary-solvent-QD-ink system for efficient inkjet-printed QLEDs as well as the other solution-processed electronic devices in the future.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- ink engineering
- inkjet printing
- perovskite
- quantum dot light-emitting diode
- ternary solvent ink
- Cesium compounds
- Ink
- Lead compounds
- Nanocrystals
- Quantum efficiency
- Semiconductor quantum dots
- Solvents
- Cost scale
- External quantum efficiency
- High quality
- Ink jet
- Large-scale manufacturing
- Low-costs
- N-tridecane
- Patterned quantum dot
- Quantum-dot light emitting diodes
- Ternary solvents
- Organic light emitting diodes (OLED)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Wei, C.
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Su, W.
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Li, Jiantong, 19 ...
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Xu, B.
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Shan, Q.
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Wu, Y.
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visa fler...
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Zhang, F.
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Luo, M.
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Xiang, H.
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Cui, Z.
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Zeng, H.
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visa färre...
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