Passive radiative temperature regulator: Principles and absorption-emission manipulation
Passive radiative temperature regulator: Principles and absorption-emission manipulation
复制标题
无源辐射温度调节器:原理和吸收发射操纵
DOI:
10.1016/j.solmat.2021.111143
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发表时间:
2021-02
影响因子:
6.9
通讯作者:
Xiaofeng Li
中科院分区:
文献类型:
--
作者:
Haipeng Zhao;Yaohui Zhan;Shuliang Dou;Liang Wang;Yao Li;Xiaofeng Li
As a representative device exploiting both the solar energy and the radiative cooling of deep-sky, the radiative temperature regulator (RTR) could switch between heating and cooling modes self-adaptively at different temperatures. However, the concept of RTR is challenging to be implemented due to the intense parasitic absorption in phase-changing layers. Here, based on the theoretical framework of energy conservation, we quantitatively reveal the intrinsic relationships between solar heating and radiative cooling, especially addressing the fundamental limiting factors, including the parasitic absorption and the spectral emission selectivity, as well as the dynamic responses of the phase-changing device under various operating conditions. The investigation presents more insight into the underlying physics of RTRs and provides feasible architectures for realizing such a kind of new functional device.
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