$Revealing Grain Boundaries and Defect Formation in Nanocrystal Superlattices by Nanodiffraction; Small; Vol. 15, iss. 50$

Revealing Grain Boundaries and Defect Formation in Nanocrystal Superlattices by Nanodiffraction; Small; Vol. 15, iss. 50

書目詳細資料
Parent link:	Small Vol. 15, iss. 50.— 2019.— [1904954, 8 p.]
企業作者:	Национальный исследовательский Томский политехнический университет Институт неразрушающего контроля Международная научно-образовательная лаборатория неразрушающего контроля
其他作者:	Mukharamova N. Nastasia, Lapkin D. Dmitry, Zaluzhnyy I. A. Ivan, Andre A. Alexander, Lazarev S. V. Sergey Vladimirovich, Kim Young Yong, Sprung M. Michael, Kurta R. Ruslan, Schreiber F. Frank, Vartanyants I. A. Ivan, Scheele M. Marcus
總結:	Title screen X‐ray nanodiffraction is applied to study the formation and correlation of domain boundaries in mesocrystalline superlattices of PbS nanocrystals with face‐centered cubic structure. Each domain of the superlattice can be described with one of two mesocrystalline polymorphs with different orientational orders. Close to a grain boundary, the lattice constant decreases and the superlattice undergoes an out‐of‐plane rotation, while the orientation of the nanocrystals with respect to the superlattice remains unchanged. These findings are explained with the release of stress on the expense of specific nanocrystal-substrate interactions. The fact that correlations between adjacent nanocrystals are found to survive the structural changes at most grain boundaries implies that the key to nanocrystal superlattices with macroscopic domain sizes are strengthened interactions with the substrate.
語言:	英语
出版:	2019
主題:	электронный ресурс труды учёных ТПУ crystal defects mesocrystals nanoparticles superlattices X-ray scattering наночастицы рентгеновское рассеяние
在線閱讀:	https://doi.org/10.1002/smll.201904954
格式:	電子 Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=661621

實物特徵
總結:	Title screen X‐ray nanodiffraction is applied to study the formation and correlation of domain boundaries in mesocrystalline superlattices of PbS nanocrystals with face‐centered cubic structure. Each domain of the superlattice can be described with one of two mesocrystalline polymorphs with different orientational orders. Close to a grain boundary, the lattice constant decreases and the superlattice undergoes an out‐of‐plane rotation, while the orientation of the nanocrystals with respect to the superlattice remains unchanged. These findings are explained with the release of stress on the expense of specific nanocrystal-substrate interactions. The fact that correlations between adjacent nanocrystals are found to survive the structural changes at most grain boundaries implies that the key to nanocrystal superlattices with macroscopic domain sizes are strengthened interactions with the substrate.
DOI:	10.1002/smll.201904954