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Chen JZ, Ko WY, Yen YC, Chen PH, Lin KJ.
ACS Nano. 2012 Aug 28;6(8):6633-9.
Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
Abstract
Dual functionalities of antireflective and electrochromic properties-based anatase TiO(2) nanowire devices with a high-porosity cross-linked geometry directly grown onto transparent conductive glass was achieved for the first time through a simple one-step hydrothermal process under mild alkali conditions. Devices fashioned from these TiO(2) nanowires were found to display enhanced optical transparency in the visible range, better color contrast, and faster color-switching time in comparison to devices made from nanoparticles. These improvements can be attributed to the low refractive index and high porosity of the TiO(2) nanowires and their larger accessible surface area for Li(+) intercalation and deintercalation, leading to enhanced capabilities for transparent electrochromic smart windows.
Caption: The scheme illustrated the FTO glass with different TiO2 NW coating types : no TiO2 NW coated, single-side coated and double-side coated; and their corresponded transmittance variance spectra.
