Nanoporous thermochromic VO2 (M) thin films : controlled porosity, largely enhanced luminous transmittance and solar modulating ability

Vanadium dioxide is the most widely researched thermochromic material with a phase transition temperature (τc) of around 68 °C, and its thermochromic performance can be enhanced by adding nanoporosity. Freeze-drying has been employed to fabricate nanostructures with different porosities from 16 to 4...

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Main Authors: Cao, Xun, Wang, Ning, Law, Jia Yan, Loo, Say Chye Joachim, Magdassi, Shlomo, Long, Yi
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2014
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Online Access:https://hdl.handle.net/10356/104159
http://hdl.handle.net/10220/19426
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1041592020-06-01T10:21:09Z Nanoporous thermochromic VO2 (M) thin films : controlled porosity, largely enhanced luminous transmittance and solar modulating ability Cao, Xun Wang, Ning Law, Jia Yan Loo, Say Chye Joachim Magdassi, Shlomo Long, Yi School of Materials Science & Engineering DRNTU::Engineering::Materials Vanadium dioxide is the most widely researched thermochromic material with a phase transition temperature (τc) of around 68 °C, and its thermochromic performance can be enhanced by adding nanoporosity. Freeze-drying has been employed to fabricate nanostructures with different porosities from 16 to 45% by varying the prefreezing temperature and precursor concentration. The luminous transmittance (Tlum) and solar modulating ability (ΔTsol) are greatly enhanced as a result of increasing pore size and pore density. The freeze-dried sample with 7.5 mL of H2O2 precursor dip-coated at 300 mm/min gives the best combination of thermochromic properties (Tlum ≈ 50%, ΔTsol = 14.7%), which surpasses the best combined thermochromic performance reported to date that we are aware of (Tlum ≈ 41%, ΔTsol = 14.1%). 2014-05-22T08:11:45Z 2019-12-06T21:27:36Z 2014-05-22T08:11:45Z 2019-12-06T21:27:36Z 2014 2014 Journal Article Cao, X., Wang, N., Law, J. Y., Loo, S. C. J., Magdassi, S., & Long, Y. (2014). Nanoporous Thermochromic VO2 (M) Thin Films: Controlled Porosity, Largely Enhanced Luminous Transmittance and Solar Modulating Ability. Langmuir, 30(6), 1710–1715. https://hdl.handle.net/10356/104159 http://hdl.handle.net/10220/19426 10.1021/la404666n 179315 en Langmuir © 2014 American Chemical Society.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Materials
spellingShingle DRNTU::Engineering::Materials
Cao, Xun
Wang, Ning
Law, Jia Yan
Loo, Say Chye Joachim
Magdassi, Shlomo
Long, Yi
Nanoporous thermochromic VO2 (M) thin films : controlled porosity, largely enhanced luminous transmittance and solar modulating ability
description Vanadium dioxide is the most widely researched thermochromic material with a phase transition temperature (τc) of around 68 °C, and its thermochromic performance can be enhanced by adding nanoporosity. Freeze-drying has been employed to fabricate nanostructures with different porosities from 16 to 45% by varying the prefreezing temperature and precursor concentration. The luminous transmittance (Tlum) and solar modulating ability (ΔTsol) are greatly enhanced as a result of increasing pore size and pore density. The freeze-dried sample with 7.5 mL of H2O2 precursor dip-coated at 300 mm/min gives the best combination of thermochromic properties (Tlum ≈ 50%, ΔTsol = 14.7%), which surpasses the best combined thermochromic performance reported to date that we are aware of (Tlum ≈ 41%, ΔTsol = 14.1%).
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Cao, Xun
Wang, Ning
Law, Jia Yan
Loo, Say Chye Joachim
Magdassi, Shlomo
Long, Yi
format Article
author Cao, Xun
Wang, Ning
Law, Jia Yan
Loo, Say Chye Joachim
Magdassi, Shlomo
Long, Yi
author_sort Cao, Xun
title Nanoporous thermochromic VO2 (M) thin films : controlled porosity, largely enhanced luminous transmittance and solar modulating ability
title_short Nanoporous thermochromic VO2 (M) thin films : controlled porosity, largely enhanced luminous transmittance and solar modulating ability
title_full Nanoporous thermochromic VO2 (M) thin films : controlled porosity, largely enhanced luminous transmittance and solar modulating ability
title_fullStr Nanoporous thermochromic VO2 (M) thin films : controlled porosity, largely enhanced luminous transmittance and solar modulating ability
title_full_unstemmed Nanoporous thermochromic VO2 (M) thin films : controlled porosity, largely enhanced luminous transmittance and solar modulating ability
title_sort nanoporous thermochromic vo2 (m) thin films : controlled porosity, largely enhanced luminous transmittance and solar modulating ability
publishDate 2014
url https://hdl.handle.net/10356/104159
http://hdl.handle.net/10220/19426
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