Wide-spectrum modulated electrochromic smart windows based on MnO₂/PB films
Inorganic materials have been extensively studied for visible electrochromism in the past few decades. However, the single inorganic electrochromic (EC) material commonly exhibits a single color change, leading to a narrow spectrum of modulation, which offsets or limits the maximally energy-saving a...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/162311 |
| _version_ | 1824454695760953344 |
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| author | Ma, Dongyun Eh, Alice Lee-Sie Cao, Sheng Lee, Pooi See Wang, Jinmin |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Ma, Dongyun Eh, Alice Lee-Sie Cao, Sheng Lee, Pooi See Wang, Jinmin |
| author_sort | Ma, Dongyun |
| collection | NTU |
| description | Inorganic materials have been extensively studied for visible electrochromism in the past few decades. However, the single inorganic electrochromic (EC) material commonly exhibits a single color change, leading to a narrow spectrum of modulation, which offsets or limits the maximally energy-saving ability. Here, we present a wide-spectrum modulated EC device designed by combining the complementary EC nanocomposite of manganese dioxide (MnO2) and Prussian blue (PB) for enhanced energy savings. Porous MnO2 nanostructures serve as host frameworks for the templated growth of PB, resulting in MnO2/PB nanocomposites. The complementary optical modulation ranges of MnO2 and PB enable a widen-spectrum modulation across the solar region with the development of the MnO2/PB nanocomposite. The colored MnO2/PB device exhibited an optical modulation of 32.1% in the wide solar spectrum range of 320-1100 nm and blocked 72.0% of the solar irradiance. Furthermore, fast switching responses (2.7 s for coloration and 2.1 s for bleaching) and a high coloration efficiency (83.1 cm2·C-1) of the MnO2/PB EC device are also achieved. The high EC performance of the MnO2/PB nanocomposite device provides a new strategy for the design of high-performance energy-saving EC smart windows. |
| first_indexed | 2025-02-19T03:26:24Z |
| format | Journal Article |
| id | ntu-10356/162311 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:26:24Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1623112022-10-12T08:48:24Z Wide-spectrum modulated electrochromic smart windows based on MnO₂/PB films Ma, Dongyun Eh, Alice Lee-Sie Cao, Sheng Lee, Pooi See Wang, Jinmin School of Materials Science and Engineering Singapore-HUJ Alliance for Research and Enterprise (SHARE) Nanomaterials for Energy and Energy Water Nexus (NEW) Engineering::Materials Electrochromic Prussian Blue Inorganic materials have been extensively studied for visible electrochromism in the past few decades. However, the single inorganic electrochromic (EC) material commonly exhibits a single color change, leading to a narrow spectrum of modulation, which offsets or limits the maximally energy-saving ability. Here, we present a wide-spectrum modulated EC device designed by combining the complementary EC nanocomposite of manganese dioxide (MnO2) and Prussian blue (PB) for enhanced energy savings. Porous MnO2 nanostructures serve as host frameworks for the templated growth of PB, resulting in MnO2/PB nanocomposites. The complementary optical modulation ranges of MnO2 and PB enable a widen-spectrum modulation across the solar region with the development of the MnO2/PB nanocomposite. The colored MnO2/PB device exhibited an optical modulation of 32.1% in the wide solar spectrum range of 320-1100 nm and blocked 72.0% of the solar irradiance. Furthermore, fast switching responses (2.7 s for coloration and 2.1 s for bleaching) and a high coloration efficiency (83.1 cm2·C-1) of the MnO2/PB EC device are also achieved. The high EC performance of the MnO2/PB nanocomposite device provides a new strategy for the design of high-performance energy-saving EC smart windows. We gratefully acknowledge the financial support from the Natural National Science Foundation of China (61775131, 61376009), Natural Science Foundation of Shanghai (18ZR1415900), and Open Foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University (2021GXYSOF15). 2022-10-12T08:48:24Z 2022-10-12T08:48:24Z 2022 Journal Article Ma, D., Eh, A. L., Cao, S., Lee, P. S. & Wang, J. (2022). Wide-spectrum modulated electrochromic smart windows based on MnO₂/PB films. ACS Applied Materials and Interfaces, 14(1), 1443-1451. https://dx.doi.org/10.1021/acsami.1c20011 1944-8244 https://hdl.handle.net/10356/162311 10.1021/acsami.1c20011 34957823 2-s2.0-85122585895 1 14 1443 1451 en ACS Applied Materials and Interfaces © 2021 American Chemical Society. All rights reserved. |
| spellingShingle | Engineering::Materials Electrochromic Prussian Blue Ma, Dongyun Eh, Alice Lee-Sie Cao, Sheng Lee, Pooi See Wang, Jinmin Wide-spectrum modulated electrochromic smart windows based on MnO₂/PB films |
| title | Wide-spectrum modulated electrochromic smart windows based on MnO₂/PB films |
| title_full | Wide-spectrum modulated electrochromic smart windows based on MnO₂/PB films |
| title_fullStr | Wide-spectrum modulated electrochromic smart windows based on MnO₂/PB films |
| title_full_unstemmed | Wide-spectrum modulated electrochromic smart windows based on MnO₂/PB films |
| title_short | Wide-spectrum modulated electrochromic smart windows based on MnO₂/PB films |
| title_sort | wide spectrum modulated electrochromic smart windows based on mno₂ pb films |
| topic | Engineering::Materials Electrochromic Prussian Blue |
| url | https://hdl.handle.net/10356/162311 |
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