期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 7, 期 1, 页码 97-106出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta05333b
关键词
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资金
- National Key R&D Program of China [2016YFA0202302]
- National Natural Science Funds for Distinguished Young Scholars [51425306]
- State Key Program of National Natural Science Foundation of China [51633007]
- National Natural Science Foundation of China [51573125, 51573147]
Use of solar energy as a source of heat is an important method of storing and providing clean energy for thermal management. However, the difficulties associated with combining the high-energy storage and high-rate heat release of solar thermal storage (STS) lower their ability to output heat controllably, and thus, prevent their application in temperature-sensitive or temperature-responsive systems. Herein, we report for the first time the closed-cycle utilization of photo-thermal energy for thermochromic displays by optimizing the solid-state high-rate heat output of STS films. By controlling the molecular interaction, a tri-azobenzene (Azo)-based templated assembly can bemade to combine amaximumenergy density of 150.3 Whkg(-1), a long half-life (1250 h), and a high power density of 3036.9 W kg(-1). The STS film can induce a reversible color change in a complicated thermochromic-patterned display by releasing heat to increase the temperature by 6-7-C. We also realize variable heat release by controlling the heating rate and temperature to utilize photo-thermal energy efficiently. Efficient cycling utilization of photothermal energy using a tri-Azo assembly could be used to harness photo-thermal power for thermal management.
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