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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201801117
|2 doi
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|a pubmed24n1308.xml
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|a (DE-627)NLM28515527X
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|a (NLM)29870579
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Tong, Yu
|e verfasserin
|4 aut
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|a Spontaneous Self-Assembly of Perovskite Nanocrystals into Electronically Coupled Supercrystals
|b Toward Filling the Green Gap
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 27.02.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Self-assembly of nanoscale building blocks into ordered nanoarchitectures has emerged as a simple and powerful approach for tailoring the nanoscale properties and the opportunities of using these properties for the development of novel optoelectronic nanodevices. Here, the one-pot synthesis of CsPbBr3 perovskite supercrystals (SCs) in a colloidal dispersion by ultrasonication is reported. The growth of the SCs occurs through the spontaneous self-assembly of individual nanocrystals (NCs), which form in highly concentrated solutions of precursor powders. The SCs retain the high photoluminescence (PL) efficiency of their NC subunits, however also exhibit a redshifted emission wavelength compared to that of the individual nanocubes due to interparticle electronic coupling. This redshift makes the SCs pure green emitters with PL maxima at ≈530-535 nm, while the individual nanocubes emit a cyan-green color (≈512 nm). The SCs can be used as an emissive layer in the fabrication of pure green light-emitting devices on rigid or flexible substrates. Moreover, the PL emission color is tunable across the visible range by employing a well-established halide ion exchange reaction on the obtained CsPbBr3 SCs. These results highlight the promise of perovskite SCs for light emitting applications, while providing insight into their collective optical properties
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|a Journal Article
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|a CsPbX3 perovskite
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|a electronic coupling
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|a green LEDs
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|a supercrystals
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4 |
|a superlattices
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|a Yao, En-Ping
|e verfasserin
|4 aut
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|a Manzi, Aurora
|e verfasserin
|4 aut
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|a Bladt, Eva
|e verfasserin
|4 aut
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|a Wang, Kun
|e verfasserin
|4 aut
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|a Döblinger, Markus
|e verfasserin
|4 aut
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|a Bals, Sara
|e verfasserin
|4 aut
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|a Müller-Buschbaum, Peter
|e verfasserin
|4 aut
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|a Urban, Alexander S
|e verfasserin
|4 aut
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|a Polavarapu, Lakshminarayana
|e verfasserin
|4 aut
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|a Feldmann, Jochen
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g (2018) vom: 05. Juni, Seite e1801117
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g year:2018
|g day:05
|g month:06
|g pages:e1801117
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|u http://dx.doi.org/10.1002/adma.201801117
|3 Volltext
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|b 05
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|h e1801117
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