Fabrication of silver vanadium oxide and V2O5 nanowires for electrochromics.
Silver vanadium oxide (SVO) and V2O5 nanowires have been hydrothermally synthesized. The as-made nanowires are over 30 microm 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.
Xiong
Chunrong
C
Department of Chemistry, University of Texas at Dallas, Richardson, Texas 75083-0688, USA.
Aliev
Ali E
AE
Gnade
Bruce
B
Balkus
Kenneth J
KJ
D003460:Crystallization / Q000379:methods; D004553:Electric Conductivity; D004581:Electronics / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008029:Lighting / Q000295:instrumentation*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000295:instrumentation*; D010316:Particle Size; D018030:Silver Compounds / Q000737:chemistry; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*; D017968:Vanadium Compounds / Q000737:chemistry*
D046911:Macromolecular Substances; D018030:Silver Compounds; D017968:Vanadium Compounds; C009495:titanium dioxide; C066075:vanadium pentoxide; D014025:Titanium