TY - JOUR
T1 - Color Tuning of Electrochromic TiO2 Nanofibrous Layers Loaded with Metal and Metal Oxide Nanoparticles for Smart Colored Windows
AU - Eyovge, Cavit
AU - Deenen, Cristian S.
AU - Ruiz-Zepeda, Francisco
AU - Bartling, Stephan
AU - Smirnov, Yury
AU - Morales-Masis, Monica
AU - Susarrey-Arce, Arturo
AU - Gardeniers, Han
N1 - Funding Information:
C.E., C.S.D., A.S.-A., and H.G. received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement no. 742004). F.R.-Z. received funding from the Slovenian Research Agency (programs P2-0393 and P2-0132).
Publisher Copyright:
© 2021 The Authors. Published by American Chemical Society.
PY - 2021/8/27
Y1 - 2021/8/27
N2 - Co-axial electrospinning was applied for the structuring of non-woven webs of TiO2 nanofibers loaded with Ag, Au, and CuO nanoparticles. The composite layers were tested in an electrochromic half-cell assembly. A clear correlation between the nanoparticle composition and electrochromic effect in the nanofibrous composite is observed: TiO2 loaded with Ag reveals a black-brown color, Au shows a dark-blue color, and CuO shows a dark-green color. For electrochromic applications, the Au/TiO2 layer is the most promising choice, with a color modulation time of 6 s, transmittance modulation of 40%, coloration efficiency of 20 cm2/C, areal capacitance of 300 F/cm2, and cyclic stability of over 1000 cycles in an 18 h period. In this study, an unexplored path for the rational design of TiO2-based electrochromic device is offered with unique color-switching and optical efficiency gained by the fibrous layer. It is also foreseen that co-axial electrospinning can be an alternative nanofabrication technique for smart colored windows.
AB - Co-axial electrospinning was applied for the structuring of non-woven webs of TiO2 nanofibers loaded with Ag, Au, and CuO nanoparticles. The composite layers were tested in an electrochromic half-cell assembly. A clear correlation between the nanoparticle composition and electrochromic effect in the nanofibrous composite is observed: TiO2 loaded with Ag reveals a black-brown color, Au shows a dark-blue color, and CuO shows a dark-green color. For electrochromic applications, the Au/TiO2 layer is the most promising choice, with a color modulation time of 6 s, transmittance modulation of 40%, coloration efficiency of 20 cm2/C, areal capacitance of 300 F/cm2, and cyclic stability of over 1000 cycles in an 18 h period. In this study, an unexplored path for the rational design of TiO2-based electrochromic device is offered with unique color-switching and optical efficiency gained by the fibrous layer. It is also foreseen that co-axial electrospinning can be an alternative nanofabrication technique for smart colored windows.
KW - Co-axial fibers
KW - Color tuning
KW - Electrochromism
KW - Electrospinning
KW - Nanoparticles
KW - UT-Hybrid-D
UR - http://www.scopus.com/inward/record.url?scp=85114378240&partnerID=8YFLogxK
U2 - 10.1021/acsanm.1c02231
DO - 10.1021/acsanm.1c02231
M3 - Article
AN - SCOPUS:85114378240
SN - 2574-0970
VL - 4
SP - 8600
EP - 8610
JO - ACS Applied Nano Materials
JF - ACS Applied Nano Materials
IS - 8
ER -
