Tyck till om SwePub Sök
här!
Sökning: onr:"swepub:oai:DiVA.org:liu-171400" >
Efficient and High-...
Efficient and High-Luminance Perovskite Light-Emitting Diodes Based on CsPbBr3 Nanocrystals Synthesized from a Dual-Purpose Organic Lead Source
-
- Zhao, Haifeng (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten,Univ Elect Sci & Technol China, Peoples R China; Univ Elect Sci & Technol China, Peoples R China
-
- Hu, Zhang-Jun (författare)
- Linköpings universitet,Molekylär ytfysik och nanovetenskap,Tekniska fakulteten
-
- Wei, Linfeng (författare)
- Univ Elect Sci & Technol China, Peoples R China; Univ Elect Sci & Technol China, Peoples R China
-
visa fler...
-
- Zeng, Peng (författare)
- Univ Elect Sci & Technol China, Peoples R China; Univ Elect Sci & Technol China, Peoples R China
-
- Kuang, Chaoyang (författare)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
-
- Liu, Xiaochun (författare)
- Univ Elect Sci & Technol China, Peoples R China; Univ Elect Sci & Technol China, Peoples R China
-
- Bai, Sai (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
-
- Gao, Feng (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
-
- Liu, Mingzhen (författare)
- Univ Elect Sci & Technol China, Peoples R China; Univ Elect Sci & Technol China, Peoples R China
-
visa färre...
-
(creator_code:org_t)
- 2020
- Engelska.
-
Ingår i: Small. - : WILEY-V C H VERLAG GMBH. - 1613-6810 .- 1613-6829.
- Relaterad länk:
-
https://liu.diva-por... (primary) (Raw object)
-
visa fler...
-
https://onlinelibrar...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Rational engineering of the surface properties of perovskite nanocrystals (PeNCs) is critical to obtain light emitters with simultaneous high photoluminescence efficiency and excellent charge transport properties for light-emitting diodes (LEDs). However, the commonly used lead halide sources make it hard to rationally optimize the surface compositions of the PeNCs. In addition, previously developed ligand engineering strategies for conventional inorganic nanocrystals easily deteriorate surface properties of the PeNCs, bringing additional difficulties in optimizing their optoelectronic properties. In this work, a novel strategy of employing a dual-purpose organic lead source for the synthesis of highly luminescent PeNCs with enhanced charge transport property is developed. Lead naphthenate (Pb(NA)(2)), of which the metal ions work as lead sources while the naphthenate can function as the surface ligands afterward, is explored and the obtained products under different synthesis conditions are comprehensively investigated. Monodispersed cesium lead bromide (CsPbBr3) with controllable size and excellent optical properties, showing superior photoluminescence quantum yields up to 80%, is obtained. Based on the simultaneously enhanced electrical properties of the Pb(NA)(2)-derived PeNCs, the resultant LEDs demonstrate a high peak external quantum efficiency of 8.44% and a superior maximum luminance of 31 759 cd cm(-2).
Ämnesord
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Nyckelord
- charge transport property; dual‐ purpose; light‐ emitting diodes; organic lead sources; perovskite nanocrystals
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
-
Small
(Sök värdpublikationen i LIBRIS)
Till lärosätets databas