Acta Optica Sinica, Volume. 41, Issue 15, 1523001(2021)
Self-Adaptive Temperature Modulation Based on Thermal Induced Phase Changing of Vanadium Dioxide
The existing radiation cooling device is not self-adaptive, that is, it can only lower the temperature but not increase the temperature. In order to achieve the dual functions of heating and cooling, and can automatically switch with the change of ambient temperature, this article focuses on an adaptive temperature regulator based on vanadium dioxide, and systematically discusses its photothermal control principles, technical bottlenecks, and implementation methods. The combination method of transmission matrix and genetic algorithm is used to design and optimize the multilayer structure integrated by the resonant cavity and the filter, and obtain the excellent photothermal control performance of solar absorption ratio of 0.1, high temperature emissivity of 0.76 and emissivity difference of 0.7. On this basis, the real-time temperature response of the optimized structure is predicted according to the actual environment, and its adaptive temperature control function is verified theoretically. This research provides an alternative solution for adaptive temperature control based on vanadium dioxide, and provides a corresponding technical reserve for the development of intelligent thermal control technology.
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Haipeng Zhao, Xinyuan Zhang, Yunbin He, Shuliang Dou, Yao Li, Xiaofeng Li, Yaohui Zhan. Self-Adaptive Temperature Modulation Based on Thermal Induced Phase Changing of Vanadium Dioxide[J]. Acta Optica Sinica, 2021, 41(15): 1523001
Category: Optical Devices
Received: Jan. 14, 2021
Accepted: Mar. 8, 2021
Published Online: Aug. 30, 2021
The Author Email: Zhan Yaohui (yhzhan@suda.edu.cn)