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Controlling Size‐Induced Phase Transformations Using Chemically Designed Nanolaminates
Author(s) -
Beekman Matt,
Disch Sabrina,
Rouvimov Sergei,
Kasinathan Deepa,
Koepernik Klaus,
Rosner Helge,
Zschack Paul,
Neumann Wolfgang S.,
Johnson David C.
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201305377
Subject(s) - materials science , nanocrystal , synchrotron , phase (matter) , phase transition , diffraction , epitaxy , crystallography , chemical physics , density functional theory , nanotechnology , crystal (programming language) , optoelectronics , condensed matter physics , optics , chemistry , computer science , computational chemistry , physics , layer (electronics) , organic chemistry , programming language
By dimensionally constraining crystalline layers in a non‐epitaxial intergrowth, nanocrystal ensembles with well‐defined and precisely controlled size are prepared. Synchrotron X‐ray diffraction, electron microscopy, and density functional theory show that a size‐induced second‐order structural transition allows the crystal structure of a layered semiconductor (SnSe) to be continuously tuned by controlling the thickness of the individual layers.