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100 _a20210907a2021 k y0engy50 ba
101 0 _aeng
102 _aGB
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aExploring the 3D structure and defects of a self-assembled gold mesocrystal by coherent X-ray diffraction imaging
_fJ. Carnis, F. Kirner, D. Lapkin [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 58 tit.]
330 _aMesocrystals are nanostructured materials consisting of individual nanocrystals having a preferred crystallographic orientation. On mesoscopic length scales, the properties of mesocrystals are strongly affected by structural heterogeneity. Here, we report the detailed structural characterization of a faceted mesocrystal grain self-assembled from 60 nm sized gold nanocubes. Using coherent X-ray diffraction imaging, we determined the structure of the mesocrystal with the resolution sufficient to resolve each gold nanoparticle. The reconstructed electron density of the gold mesocrystal reveals its intrinsic structural heterogeneity, including local deviations of lattice parameters, and the presence of internal defects. The strain distribution shows that the average superlattice obtained by angular X-ray cross-correlation analysis and the real, “multidomain” structure of a mesocrystal are very close to each other, with a deviation less than 10%. These results will provide an important impact to understanding the fundamental principles of structuring and self-assembly including ensuing properties of mesocrystals.
461 _tNanoscale
463 _tVol. 13, iss. 23
_v[P. 9449-9892]
_d2021
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aтрехмерные структуры
610 1 _aдефекты
610 1 _aзолото
610 1 _aрентгеновская дифракция
610 1 _aнаноструктурированные материалы
610 1 _aнанокристаллы
610 1 _aмезокристаллы
701 1 _aCarnis
_bJ.
_gJerome
701 1 _aKirner
_bF.
_gFelizitas
701 1 _aLapkin
_bD.
_gDmitry
701 1 _aSturm
_bS.
_gSebastian
701 0 _aKim Young Yong
701 1 _aBaburin
_bI. A.
_gIgor
701 1 _aKhubbutdinov
_bR. M.
_gRuslan
701 1 _aIgnatenko
_bA.
701 1 _aYashina
_bE. G.
_gEkaterina Gennadjevna
701 1 _aMistonov
_bA. A.
_gAleksandr Andreevich
701 1 _aSteegemans
_bT.
_gTristan
701 1 _aWieck
_bT.
_gThomas
701 1 _aGemming
_bT.
_gThomas
701 1 _aLubk
_bA.
_gAxel
701 1 _aLazarev
_bS. V.
_cphysicist
_cengineer at Tomsk Polytechnic University
_f1984-
_gSergey Vladimirovich
_2stltpush
_3(RuTPU)RU\TPU\pers\35210
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа неразрушающего контроля и безопасности
_bЦентр промышленной томографии
_bМеждународная научно-образовательная лаборатория неразрушающего контроля
_h6776
_2stltpush
_3(RuTPU)RU\TPU\col\19961
801 2 _aRU
_b63413507
_c20210907
_gRCR
856 4 _uhttps://doi.org/10.1039/D1NR01806J
942 _cCF