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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004097naa a2200445 4500
001oai:lup.lub.lu.se:3ca49603-72b0-4659-932a-51ad4384038d
003SwePub
008190604s2019 | |||||||||||000 ||eng|
0247 a https://lup.lub.lu.se/record/3ca49603-72b0-4659-932a-51ad4384038d2 URI
0247 a https://doi.org/10.1002/advs.2019004622 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
1001 a Bi, Chenghaou University of Science and Technology Beijing4 aut
2451 0a Spontaneous Self-Assembly of Cesium Lead Halide Perovskite Nanoplatelets into Cuboid Crystals with High Intensity Blue Emission
264 c 2019-05-08
264 1b Wiley,c 2019
520 a Colloidal all-inorganic perovskite nanocrystals have gained significant attention as a promising material for both fundamental and applied research due to their excellent emission properties. However, reported photoluminescence quantum yields (PL QYs) of blue-emitting perovskite nanocrystals are rather low, mostly due to the fact that the high energy excitons for such wide bandgap materials are easily captured by interband traps, and then decay nonradiatively. In this work, it is demonstrated how to tackle this issue, performing self-assembly of 2D perovskite nanoplatelets into larger size (≈50 nm × 50 nm × 20 nm) cuboid crystals. In these structures, 2D nanoplatelets being isolated from each other within the cuboidal scaffold by organic ligands constitute multiple quantum wells, where exciton localization on potential disorder sites helps them to bypass nonradiative channels present in other platelets. As a result, the cuboid crystals show an extremely high PL QY of 91% of the emission band centered at 480 nm. Moreover, using the same synthetic method, mixed-anion CsPb(Br/Cl) 3 cuboid crystals with blue emission peaks ranging from 452 to 470 nm, and still high PL QYs in the range of 72–83% are produced.
650 7a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng
653 a blue emission
653 a cesium lead halide perovskite
653 a nanoplatelets
653 a quantum wells
653 a self-assembly
7001 a Wang, Shixunu University of Science and Technology Beijing4 aut
7001 a Kershaw, Stephen V.u City University of Hong Kong4 aut
7001 a Zheng, Kaibou Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)chem-kbz
7001 a Pullerits, Tönuu Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH4 aut0 (Swepub:lu)chph-tp
7001 a Gaponenko, Sergeyu National Academy of Sciences of Belarus (NASB)4 aut
7001 a Tian, Jianjunu University of Science and Technology Beijing4 aut
7001 a Rogach, Andrey L.u City University of Hong Kong4 aut
7102 a University of Science and Technology Beijingb City University of Hong Kong4 org
7730 t Advanced Scienced : Wileyg 6:13q 6:13x 2198-3844
8564 u http://dx.doi.org/10.1002/advs.201900462x freey FULLTEXT
8564 u https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/advs.201900462
8564 8u https://lup.lub.lu.se/record/3ca49603-72b0-4659-932a-51ad4384038d
8564 8u https://doi.org/10.1002/advs.201900462

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