Micro-Nano Composite Structures: General Resolution for Transparent-to-Multicolored Electrochromic Supercapacitors Assembly
Year: 2025
Type: article
Abstract: High Resolution Image Download MS PowerPoint Slide With the objective to fully exploit the energy-saving advantages of the electrochromic (EC) phenomenon for potential applications in related fields such as smart windows and displays, while conferring integrated functionality to a single device, it is urgent to explore a commonly applicable device construction strategy. Herein, the typical high performance polymer (HPP) materials of poly(arylsulfones) and poly(aryl ketones), each capable of achieving transparent-to-multicolored variations, are taken as the breakthrough point, and ingeniously coupled with the conductive substrate modification layer (SnO 2 ) and the ion storage layer (V 2 O 5 ), to construct electrochromic supercapacitors (ECSs) capable of fully unlocking the extraordinary intrinsic performances from the active substances. SnO 2 nanosheets were utilized to construct the microstructure of the active layers with uniform porosity with a view to improving the response speed of the system in response to the input electrical signals. Alternatively, modified V 2 O 5 nanowires, which were highly compatible with the EC materials and did not interfere with their color-changing effect, were specially identified as the counter electrode materials to facilitate the specific function. Benefiting from the porous composite structure, the delicately matched poly(bis(4-(diphenylamino)phenyl)sulfone) (P-TST) device with P-TST@SnO 2 /V 2 O 5 structure boasted an optical contrast ratio of 68.07%, a reduction in coloring time by more than 2/3, and a near-doubling coloration efficiency. Additionally, the construction strategy is beneficial to the capacitive properties as well. There is a perfectly adequate compatibility between material variety and multi-functionality. Such an alternative and versatile construction strategy is justified to inject vitality into the development of electrochromism in multifunctional smart windows or displays.
Source: Polymer science & technology.
Authors: Qilin Wang, Chenchen Bian, Zhibo Zheng, Huilin Shen, Keying Feng, Guofa Cai, Zheng Chen, Zhenhua Jiang
Language: English
Subfield: Polymers and Plastics
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4410425781