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Optical engineering of polymer materials and composites for simultaneous color and thermal management
Name
ome-9-5-1990.pdf
Description
Published version
Size
6.88 MB
Format
Adobe PDF
Checksum (MD5)
5a06400b1ed703530d4fcc05a56d9473
Author(s)
Lozano, Luis Marcelo
Hong, Seongdon
Huang, Yi
Zandavi, Hadi
El Aoud, Yassine Ait
Tsurimaki, Yoichiro
Zhou, Jiawei
Xu, Yanfei
Osgood, Richard M
Chen, Gang
Date Issued
2019
Journal
Optical Materials Express
Publisher
The Optical Society
Version
Final published version
Abstract
© 2019 Optical Society of America. Sustainable architecture requires development of new materials with tailored optical, mechanical, and thermal properties to provide both aesthetic appeal and energy-saving functionalities. Polymers and polymer-based composites emerge as promising lightweight and conformable materials whose optical spectra can be engineered to achieve both goals. Here, we report on the development of new types of organic-inorganic films composed of ultrahigh molecular weight polyethylene with a variety of organic and inorganic nano- and micro-scale inclusions. The films simultaneously provide ultra-light weight, conformability, either visual coloring or transparency on demand, and passive thermal management via both conduction and radiation. The lightweight semi-crystalline polymer matrix yields thermal conductivity exceeding that of many metals, allowing for the lateral heat spreading and hot spots mitigation in the cases of partial illumination of films by sunlight. It also yields excellent broadband transparency, allowing for the opportunities to shape the spectral response of composite materials via targeted addition of inclusions with tailored optical spectra. We demonstrate a variety of dark- and bright-colored composite samples that exhibit reduced temperatures under direct illumination by sunlight, and outline strategies for materials design to further improve material performance.
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
10.1364/OME.9.001990
