Journal
THIN SOLID FILMS
Volume 516, Issue 5, Pages 794-797Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2007.06.177
Keywords
hot-wire chemical vapor deposition; metal oxide nano-particles; electrochromic; lithium-ion battery
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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 similar to 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 similar to 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. (c) 2007 Elsevier B.V. All tights reserved.
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