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Designed Synthesis of [TiSe 2 ] m [NbSe 2 ] n Superlattices from Modulated Reactants
Author(s) -
Noh Myungkeun,
Johnson David C.
Publication year - 1996
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199626661
Subject(s) - superlattice , crystallite , crystallization , materials science , substrate (aquarium) , thin film , optoelectronics , chemical engineering , nanotechnology , crystallography , condensed matter physics , chemistry , metallurgy , physics , oceanography , engineering , geology
Intergrown dichalcogenide layers with a predetermined modulation of composition can be prepared through controlled crystallization of reactants with superlattice structure. The resulting superlattice products (the picture shows the transition from one dichalcogenide component (black spheres) to the other (gray spheres)) are formed as polycrystalline thin films oriented with the dichalcogenide layers parallel to the substrate surface. We are thus a step closer to being able to tune physical and chemical properties through the design of superlattices.