Metal Oxide Nano-Particles for Improved Electrochromic and Lithium-Ion Battery Technologies

A. C. Dillon, A. H. Mahan, R. Deshpande, P. A. Parilla, K. M. Jones, S. H. Lee

Research output: Contribution to journalArticlepeer-review

83 Scopus Citations


Hot-wire chemical vapor deposition (HWCVD) has been employed as an economically scalable method for the deposition of crystalline tungsten oxide nano-rods and nano-particles. Under optimal synthesis conditions, only crystalline WO3 nano-structures with a smallest dimension of ∼10-50 nm are observed with extensive transmission electron microscopy (TEM) analyses. The incorporation of these particles into porous films led to profound advancement in state-of-the-art electrochromic (EC) technologies. HWCVD has also been employed to produce crystalline molybdenum oxide nano-rods, particles and tubes at high density. TEM analyses show that the smallest dimension of these nano-structures is ∼5-30 nm. XRD and Raman analyses reveal that the materials are highly crystalline and consist of Mo, MoO2 and MoO3 phases. It is also possible to fabricate large-area porous films containing these MoOx nano-structures. Furthermore, these films have been tested as the negative electrode in lithium-ion batteries, and a surprisingly high, reversible capacity has been observed.

Original languageAmerican English
Pages (from-to)794-797
Number of pages4
JournalThin Solid Films
Issue number5
StatePublished - 2008

NREL Publication Number

  • NREL/JA-590-42933


  • Electrochromic
  • Hot-wire chemical vapor deposition
  • Lithium-ion battery
  • Metal oxide nano-particles


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