用于高对比度大面积电致变色电容薄膜的室温自旋涂层聚氧化金属复合材料

IF 10.7 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Journal of Materials Chemistry A Pub Date : 2024-11-20 DOI:10.1039/d4ta06915c

Shi-Ming Wang, Kai-Hua Wang, Lu Zhou, Tianyang Lu, Eunkyoung Kim, Zhengbo Han, Jun Liang Lin, Lin Liu, Guodong Li

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引用次数: 0

摘要

研究人员探索了室温旋涂型聚氧化金属盐基复合材料，用于制造低成本的电致变色电容薄膜。开发出透明稳定的 K6P2W18O64 - 聚乙烯醇（P2W18-PVA）溶液，适用于刚性和柔性基底。电沉积的 HKUST-1 颗粒用于在薄膜中形成孔隙结构，从而实现离子的便捷传输。P2W18 优异的导电性能在厚度为 500 nm 的薄膜中得到了充分体现。该薄膜达到了 95% 的光学对比度和 1600 个稳定的电致发光循环的最新记录。以 MnO2 为对电极，实现了容量为 7.89 mF cm-2 的电致变色储能装置。这种在室温下制备高度稳定和透明的 POMs 涂层的策略是一种通用而简单的解决方案，并不局限于电致变色薄膜的制备。

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Room-Temperature Spin-Coatable Polyoxometalate Composites for High-Contrast, Large-Area Electrochromic Capacitive Films

Room-temperature spin-coatable polyoxometalate based composite is explored for low cost electrochromic capacitive film. Transparent stable K6P2W18O64 -polyvinyl alcohol (P2W18-PVA) solution was developed which suit for rigid and flexible substrates. The electrodeposited HKUST-1 particles were employed to create the pore structure in the film leading facile ion transportation. The excellent EC performance of P2W18 was fully expressed in this thin film with the thickness of 500 nm. The state-of-the-art record of 95% optical contrast and 1600 stable EC cycles are achieved. Electrochromic energy storage device with the capacity of 7.89 mF cm-2 was realized with MnO2 as counter electrode. This strategy for the preparation of highly stable and transparent POMs coating at room temperature is a general and simple solution that is not limited to the preparation of electrochromic films.

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来源期刊

Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS

CiteScore

19.50

自引率

5.00%

发文量

1892

审稿时长

1.5 months

期刊介绍： The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.