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...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2014
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/104159 http://hdl.handle.net/10220/19426 |
| _version_ | 1811694288999809024 |
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| author | Cao, Xun Wang, Ning Law, Jia Yan Loo, Say Chye Joachim Magdassi, Shlomo Long, Yi |
| 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 |
| author_sort | Cao, Xun |
| collection | NTU |
| 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%). |
| first_indexed | 2024-10-01T07:05:12Z |
| format | Journal Article |
| id | ntu-10356/104159 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:05:12Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-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. |
| 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 |
| title | 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_short | 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 |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/104159 http://hdl.handle.net/10220/19426 |
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