Continuous In-Situ Polymerization of Complex-Based Films for High-Performance Electrochromic Devices
Synthesis of uniform and stable electrochromic films on a conductive layer is one of the effective ways to construct high-performance electrochromic devices. The development of more convenient and feasible polymer film preparation technology is important and necessary. Herein, we demonstrated the de...
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MDPI AG
2025-02-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/30/5/1099 |
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| author | Yang-Bo Liu Hao-Tian Deng Li-Yi Zhang Jing-Hao Wei Feng-Rong Dai Zhong-Ning Chen |
| author_facet | Yang-Bo Liu Hao-Tian Deng Li-Yi Zhang Jing-Hao Wei Feng-Rong Dai Zhong-Ning Chen |
| author_sort | Yang-Bo Liu |
| collection | DOAJ |
| description | Synthesis of uniform and stable electrochromic films on a conductive layer is one of the effective ways to construct high-performance electrochromic devices. The development of more convenient and feasible polymer film preparation technology is important and necessary. Herein, we demonstrated the development of a continuous in situ polymerization method to prepare electrochromic film on ITO glass through Schiff base condensation of a tetraamine Fe-based complex and organic di-/tri-aldehyde precursors. The electrochromic film was successfully coated on the surface of the ITO conductive layer and exhibited uniform morphology and excellent stability. Film <b>P1</b> exhibited two reversible redox processes allowing two steps of electrochromic processes, including the oxidation of Fe(II) to Fe(III) at 1.05 V and oxidation of triphenylamine moieties to cation radicals at 1.4 V, which induced three stable color states from initial yellow to orange red and blue. The utilization of the so-formed polymer film for the fabrication of electrochromic devices gave rise to excellent electrochromic performance of fast response time of 0.4−1.2 s and high coloration efficiencies of 241.5−352.9 cm<sup>2</sup>/C at 1.9 V (at 535 nm) and 2.5 V (at 755 nm). The present work provides a new feasible strategy for constructing polymer films for high-performance electrochromic devices. |
| format | Article |
| id | doaj-art-403f6ae6386f459b99a58a0faacf1cdf |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj-art-403f6ae6386f459b99a58a0faacf1cdf2025-08-20T02:59:15ZengMDPI AGMolecules1420-30492025-02-01305109910.3390/molecules30051099Continuous In-Situ Polymerization of Complex-Based Films for High-Performance Electrochromic DevicesYang-Bo Liu0Hao-Tian Deng1Li-Yi Zhang2Jing-Hao Wei3Feng-Rong Dai4Zhong-Ning Chen5College of Chemistry, Fuzhou University, Fuzhou 350108, ChinaCollege of Chemistry, Fuzhou University, Fuzhou 350108, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350108, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350108, ChinaState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350108, ChinaCollege of Chemistry, Fuzhou University, Fuzhou 350108, ChinaSynthesis of uniform and stable electrochromic films on a conductive layer is one of the effective ways to construct high-performance electrochromic devices. The development of more convenient and feasible polymer film preparation technology is important and necessary. Herein, we demonstrated the development of a continuous in situ polymerization method to prepare electrochromic film on ITO glass through Schiff base condensation of a tetraamine Fe-based complex and organic di-/tri-aldehyde precursors. The electrochromic film was successfully coated on the surface of the ITO conductive layer and exhibited uniform morphology and excellent stability. Film <b>P1</b> exhibited two reversible redox processes allowing two steps of electrochromic processes, including the oxidation of Fe(II) to Fe(III) at 1.05 V and oxidation of triphenylamine moieties to cation radicals at 1.4 V, which induced three stable color states from initial yellow to orange red and blue. The utilization of the so-formed polymer film for the fabrication of electrochromic devices gave rise to excellent electrochromic performance of fast response time of 0.4−1.2 s and high coloration efficiencies of 241.5−352.9 cm<sup>2</sup>/C at 1.9 V (at 535 nm) and 2.5 V (at 755 nm). The present work provides a new feasible strategy for constructing polymer films for high-performance electrochromic devices.https://www.mdpi.com/1420-3049/30/5/1099electrochromismin situ polymerizationelectrochromic filmSchiff base condensationelectrochromic devices |
| spellingShingle | Yang-Bo Liu Hao-Tian Deng Li-Yi Zhang Jing-Hao Wei Feng-Rong Dai Zhong-Ning Chen Continuous In-Situ Polymerization of Complex-Based Films for High-Performance Electrochromic Devices Molecules electrochromism in situ polymerization electrochromic film Schiff base condensation electrochromic devices |
| title | Continuous In-Situ Polymerization of Complex-Based Films for High-Performance Electrochromic Devices |
| title_full | Continuous In-Situ Polymerization of Complex-Based Films for High-Performance Electrochromic Devices |
| title_fullStr | Continuous In-Situ Polymerization of Complex-Based Films for High-Performance Electrochromic Devices |
| title_full_unstemmed | Continuous In-Situ Polymerization of Complex-Based Films for High-Performance Electrochromic Devices |
| title_short | Continuous In-Situ Polymerization of Complex-Based Films for High-Performance Electrochromic Devices |
| title_sort | continuous in situ polymerization of complex based films for high performance electrochromic devices |
| topic | electrochromism in situ polymerization electrochromic film Schiff base condensation electrochromic devices |
| url | https://www.mdpi.com/1420-3049/30/5/1099 |
| work_keys_str_mv | AT yangboliu continuousinsitupolymerizationofcomplexbasedfilmsforhighperformanceelectrochromicdevices AT haotiandeng continuousinsitupolymerizationofcomplexbasedfilmsforhighperformanceelectrochromicdevices AT liyizhang continuousinsitupolymerizationofcomplexbasedfilmsforhighperformanceelectrochromicdevices AT jinghaowei continuousinsitupolymerizationofcomplexbasedfilmsforhighperformanceelectrochromicdevices AT fengrongdai continuousinsitupolymerizationofcomplexbasedfilmsforhighperformanceelectrochromicdevices AT zhongningchen continuousinsitupolymerizationofcomplexbasedfilmsforhighperformanceelectrochromicdevices |