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Structural Stability of High‐Pressure Polymorphs in In 2 O 3 Nanocrystals: Evidence of Stress‐Induced Transition?
Author(s) -
Gurlo Aleksander
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.201000488
Subject(s) - metastability , nanoscopic scale , nanocrystal , materials science , oxide , high pressure , indium , crystallography , chemical physics , stress (linguistics) , work (physics) , thermodynamics , nanotechnology , chemical engineering , chemistry , metallurgy , physics , organic chemistry , engineering , linguistics , philosophy
Size matters : Both high‐pressure and nanoscale syntheses can lead to the same indium oxide polymorph. Recent work by Farvid et al. provide an explanation: metastable high‐pressure rh‐In 2 O 3 is stabilized by surface forces in nanoscale particles, whereas in larger particles only the stable cubic c‐In 2 O 3 polymorph exists; this is evident in the energy diagrams.