Structural color tunable intelligent mid-infrared thermal control emitter

Liang, Shiri; Cheng, Shubo; Zhang, Huafeng; Yang, Wenxing; Yi, Zao; Zeng, Qingdong; Tang, Bin; Wu, Pinghui; Ahmad, Sohail; Sun, Tangyou

doi:10.1016/j.ceramint.2024.04.085

Cited by 84 publications

(4 citation statements)

References 60 publications

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“…VO 2 is a phase change material. 18 It has been shown that its conductivity changes by four orders of magnitude when the temperature reaches about 68 °C, its conductivity can be increased from 200 S m −1 to 2 × 10 5 S m −1 , VO 2 transition from insulating phase to metallic phase, 19,20 as well as a retrograde abrupt change in the electrical and optical properties of VO 2 . In addition, VO 2 's conductivity can also be tuned by changing the optical and electrical realizations, which in turn enables the dynamic tuning of the metamaterial absorber.…”

Section: Introductionmentioning

confidence: 99%

Tunable bandwidth terahertz perfect absorption device based on vanadium dioxide phase transition control

Shui,

Yi,

et al. 2024

Dalton Trans.

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Section: Introductionmentioning

confidence: 99%

Tunable bandwidth terahertz perfect absorption device based on vanadium dioxide phase transition control

Shui,

Yi,

et al. 2024

Dalton Trans.

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“…However, the dynamic environment and complex climate of the ocean present significant safety hazards, so monitoring of the marine environment is of paramount importance [ 3 , 4 , 5 ]. Real-time monitoring and data collection in the marine environment are facilitated by self-powered marine sensors, which have become indispensable tools [ 6 , 7 , 8 , 9 ]. This provides important information support for our ocean protection and management.…”

Section: Introductionmentioning

confidence: 99%

Elastic Self-Recovering Hybrid Nanogenerator for Water Wave Energy Harvesting and Marine Environmental Monitoring

Wang,

Yu,

Lou

et al. 2024

Sensors

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To achieve large-scale development of triboelectric nanogenerators (TENGs) for water wave energy harvesting and powering the colossal sensors widely distributed in the ocean, facile and scalable TENGs with high output are urgently required. Here, an elastic self-recovering hybrid nanogenerator (ES-HNG) is proposed for water wave energy harvesting and marine environmental monitoring. The elastic skeletal support of the ES-HNG is manufactured using three-dimensional (3D) printing technology, which is more conducive to the large-scale integration of the ES-HNG. Moreover, the combination of a TENG and an electromagnetic generator (EMG) optimizes the utilization of device space, leading to enhanced energy harvesting efficiency. Experimental results demonstrate that the TENG achieves a peak power output of 42.68 mW, and the EMG reaches a peak power output of 4.40 mW. Furthermore, various marine environment monitoring sensors, such as a self-powered wireless meteorological monitoring system, a wireless alarm system, and a water quality monitoring pen, have been successfully powered by the sophisticated ES-HNG. This work introduces an ES-HNG for water wave energy harvesting, which demonstrates potential in marine environment monitoring and offers a new solution for the sustainable development of the marine internet of things.

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“…At the same time, thermal radiation, as a way of transferring energy, is also an indispensable factor in the study of absorbers. Absorbers transfer energy with their surroundings by emitting electromagnetic waves, mainly in the infrared band [43], and when subjected to thermal radiation from the environment, resulting in an increase in temperature on the surface as well as inside the absorber, the elevated temperature is converted into heat energy and lost according to the law of the conservation of energy [44]. At the same time, excessively high temperatures may also damage materials and structures with low melting points, greatly reducing their ability to absorb solar energy.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Analysis of a Near-Perfect Solar Absorber Based on SiO2-Ti Cascade Optical Cavity

Chen,

Yi,

Song

et al. 2024

Photonics

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The main development direction for current solar technology is to improve absorption efficiency and stability. To bridge this gap, we design in this paper a structure consisting of two multilayer disc stacks of different radii, one topped by a TiO2 disc and the other by a cascade disc stack composed of SiO2-Ti, for use in thermal emitters and solar absorbers. The innovation of our work is the exploitation of multiple Fabry–Perot resonances in SiO2-Ti cascade optical cavities to develop absorber bandwidths while investigating it in the field of thermal emission and many aspects affecting the efficiency of the absorber. The finite difference time domain method (FDTD) results show absorption averages as high as 96.68% with an absorption bandwidth of 2445 nm (A > 90%) at 280 nm–3000 nm solar incidence and even higher weighted averages as high as 98.48% at 1.5 solar air mass (AM) illumination. In order to investigate the physical mechanisms of our designed absorber in a high absorption state, we analyzed the electric field distributions of its four absorption peaks and concluded that its high absorption is mainly caused by the coupling of multiple Fabry–Perot resonance modes in the cascaded optical cavity. While considering this high efficiency, we also investigated the effect of complex environments such as extreme high temperatures and changes in the angle of incidence of the absorber, and the results show that the thermal radiation efficiency of the emitter is 96.79% at an operating temperature of 1700 K, which is higher than its thermal radiation efficiency of 96.38% at an operating temperature of 1500 K, which is a perfect result. On the other hand, we conclude that the designed structure is independent of polarization, while the absorber still has 88.22% absorption at incidence angles of up to 60°, both in transverse electric (TE) and transverse magnetic (TM) modes. The results of this study can help improve the performance of future solar absorbers and expand their application areas.

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Structural color tunable intelligent mid-infrared thermal control emitter

Cited by 84 publications

References 60 publications

Tunable bandwidth terahertz perfect absorption device based on vanadium dioxide phase transition control

Tunable bandwidth terahertz perfect absorption device based on vanadium dioxide phase transition control

Elastic Self-Recovering Hybrid Nanogenerator for Water Wave Energy Harvesting and Marine Environmental Monitoring

Simulation and Analysis of a Near-Perfect Solar Absorber Based on SiO2-Ti Cascade Optical Cavity

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