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Aqueous‐Phase Synthesis of Single‐Crystal Ceria Nanosheets
Author(s) -
Yu Taekyung,
Lim Byungkwon,
Xia Younan
Publication year - 2010
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.201001521
Subject(s) - materials science , recrystallization (geology) , nanocrystal , aqueous solution , band gap , nanotechnology , phase (matter) , single crystal , chemical engineering , crystal (programming language) , crystallography , optoelectronics , chemistry , programming language , organic chemistry , computer science , engineering , biology , paleontology
The evolution of sheet morphology for single‐crystal ceria nanosheets with a thickness of about 2.2 nm and lateral dimensions up to 4 μm (see picture), involves two‐dimensional self‐organization of the initially formed ceria nanocrystals, followed by recrystallization. Ceria nanosheets exhibit an unusually large optical band gap energy due to the quantum size effect associated with their extremely small thickness.