Synergistic light-to-heat conversion effect of MXene-based transparent film with insulating PDMS/Fe3O4 coating

Effective utilization of abundant solar energy can help alleviate the global energy shortage. In this work, a flexible sandwich structured transparent photothermal film was prepared by sequentially spray coating MXene conductive layer as core, and spin coating polydimethylsiloxane (PDMS)-Fe₃O₄ prote...

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Published in:Composites. Part A, Applied science and manufacturing Applied science and manufacturing, 2023-11, Vol.174, p.107745, Article 107745
Main Authors: Fang, Mei, Li, Qi, Yang, Daozheng, Zhou, Bing, Feng, Yuezhan, Liu, Chuntai
Format: Article
Language:English
Subjects:
air
energy
heat
hydrophobicity
insulating materials
nanoparticles
polydimethylsiloxane
solar energy
transmittance
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Summary:Effective utilization of abundant solar energy can help alleviate the global energy shortage. In this work, a flexible sandwich structured transparent photothermal film was prepared by sequentially spray coating MXene conductive layer as core, and spin coating polydimethylsiloxane (PDMS)-Fe₃O₄ protective layer as skin onto polycarbonate (PC) substrate. Due to the synergistic light-to-heat conversion effects of MXene and Fe₃O₄ nanoparticles, as well as the thermal insulation effect of PDMS layer that prevent heat from diffusing into air, the obtained PC/MXene/PDMS-Fe₃O₄ films (PMPF₀.₅) exhibited a satisfying photothermal conversion performance (72.6 °C at 100 mW/cm²) with high visible transmittance exceeding 54%. Moreover, the PDMS-Fe₃O₄ coating endowed the film with high hydrophobicity (120°), expanding its application in humid environment. Combing with these excellent photothermal performance, transparency, flexibility and hydrophobicity, PMPF film exhibits a highly potential using in space thermal management, such as greenhouses.
ISSN:1359-835X
DOI:10.1016/j.compositesa.2023.107745