Unusual Compression Behavior of Anatase TiO[subscript 2[ Nanocrystals
Journal Article
·
· Phys. Rev. Lett.
The size-dependent stiffness variations in nanocrystalline anatase, a leading material for applications in photovoltaics, photocatalysis, photoelectrochromics, sensors, and optical coatings, were determined using in situ synchrotron x-ray diffraction and Raman scattering. An unusual, abrupt change in the compression curve at {approx}10 GPa and subtle breaks in the pressure shifts of the intense E{sub g} Raman band at {approx}10 and {approx}15 GPa have been correlated with {approx}2 {angstrom}-scale disordering of nanocrystalline anatase structure that fully amorphizes under high compression.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1005789
- Journal Information:
- Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: (7) ; 08, 2009 Vol. 103; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- ENGLISH
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