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Novel plasmonic solar thermal materials developed to reserve sun heat

Written by: Leonard Parker | Solar News | 07th November


Recently, researchers developed high-performance solar thermal copper sulfide photothermal ink and photothermal film, which marked a big progress in the field of Plasmonic Solar photothermal Materials.

The team was led by Prof. WANG Zhenyang from the Institute of Solid State Physics, Hefei Institutes of physical science, Chinese Academy of Sciences.

Scientists have been seeking strategies to achieve high efficient solar energy utilization for various applications, such as: solar water heaters, energy-saving buildings, drying systems and other fields.

In this study, researchers used the Kirkendall reaction to synthesize hollow copper sulfide (Cu27S24) nanocages. Compared to traditional noble metal plasmonic nanomaterials (gold or silver), which shows plasmon photothermal phenomena given the condition of illumination with visible light, Cu27S24 nanocages as semiconducting material that have lower interband transition and scattering loss. Besides, the hollow nanocage structure can further expand the available light harvesting range and further improve the light-to-heat conversion efficiency.

The researchers combined first-principles calculations and finite element method (FEM) simulations to fit the optical properties of the nanocage, and predicted its excellent solar photothermal performance. Based on the evaluation results, solar photothermal nanoink and nanofilm were further developed. This work preliminarily proves that the hollow copper sulfide nanocage has broad prospects in plasmonic photothermal applications.

The relevant results were published on Nano Research.

Research Report: Plasmonic Cu27S24 nanocages for novel solar photothermal nanoink and nanofilm


Related Links
Hefei Institutes of Physical Science, Chinese Academy of Sciences
All About Solar Energy at SolarDaily.com


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Source: https://www.solardaily.com/reports/Novel_plasmonic_solar_thermal_materials_developed_to_reserve_sun_heat_999.html