Journal
JOURNAL OF RAMAN SPECTROSCOPY
Volume 33, Issue 8, Pages 631-638Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/jrs.893
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Micro-Raman spectrometry was applied to the characterization of the LixV2O5 phases (0 less than or equal to x less than or equal to 1.8) electrochemically produced from V2O5 thin films prepared by atomic layer deposition (ALD). An electrochemical studyshowed that V2O5 ALD films constitute attractive positive electrodes for rechargeable lithium microbatteries. The good homogeneity and crystallinity of the films allowed us to obtain high resolution Raman spectra and to follow their transformation as lithium insertion proceeds. Specific Raman fingerprints were obtained for the successive alpha, epsilon, and gamma phases, and structural reversibility was evidenced or lithium uptake >1. Copyright (C) 2002 John Wiley Sons, Ltd.
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