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Fabrication of Silver Vanadium Oxide and V 2 O 5 Nanowires for Electrochromics

2008; American Chemical Society; Volume: 2; Issue: 2 Linguagem: Inglês

10.1021/nn700261c

1936-086X

Chunrong Xiong, Ali E. Aliev, Bruce E. Gnade, Kenneth J. Balkus,

ZnO doping and properties

Silver vanadium oxide (SVO) and V2O5 nanowires have been hydrothermally synthesized. The as-made nanowires are over 30 µm long and 10–20 nm in diameter. The nanowires have a layered structure with a d-spacing of 1.07 nm. The nanowires can be fabricated into free-standing and flexible sheets by suction filtration. The electrical conductivity of the SVO nanowires is 0.5 S/cm, compared to 0.08 S/cm for the V2O5 nanowires. The Li ion diffusion coefficient in the SVO nanowires was 7 times higher than that in the V2O5 nanowires. An electrochromic device was fabricated from the SVO nanowires that displayed a color-switching time of 0.2 s from the bleached state (green) to the colored state (red-brown) and 60% transmittance contrast.