The role of nanostructure morphology of nickel-infused alumina on solar-thermal energy conversion
The role of nanostructure morphology of nickel-infused alumina on solar-thermal energy conversion
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DOI：
10.1088/2040-8986/abcc53
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发表时间：
2020-12
影响因子：
2.1
通讯作者：
Xuanjie Wang;M. Hsieh;J. Bur;Shawn-Yu Lin;S. Narayanan
中科院分区：
文献类型：
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作者：
Xuanjie Wang;M. Hsieh;J. Bur;Shawn-Yu Lin;S. Narayanan
太阳能-热能转换可用于许多应用，包括水脱盐和热能储存。在这方面，使用光谱选择性太阳能吸收器是至关重要的，因为它们具有高的太阳能吸收率和低热发射率。虽然可以使用各种纳米材料来创建选择性吸收器，但潜在的几何形状可能会控制太阳能-热能转换的整体性能。利用不同的几何形状，可以获得从宽带到光的选择性吸收的宽范围的光学响应。在这项研究中，我们专注于镍注入氧化铝（Ni/NPA）的光谱选择性太阳能吸收器的纳米结构形态的作用。本研究演示了使用实验设计来分析在太阳能-热能转换背景下各种几何因素对Ni/NPA所得光学响应的影响。我们展示了这种方法如何能够提供一个独特的洞察各种几何因素对太阳能吸收率和热发射率的Ni/NPA基吸收剂的作用，并演示了它如何能够指导光谱选择性材料的发展。我们相信类似的方法可以用于开发其他光学材料用于不同的应用。
Solar-thermal energy conversion can be useful in many applications, including water desalination, and thermal energy storage. In this regard, using spectrally-selective solar absorbers is vital due to their high solar absorptance and low thermal emittance. While selective absorbers can be created using a wide range of nanomaterials, the underlying geometry may control the overall performance of solar-thermal energy conversion. With different geometries, it is possible to obtain a wide range of optical responses ranging from broadband to selective absorption of light. In this study, we focus on the role of nanostructure morphology of nickel-infused alumina (Ni/NPA) based spectrally-selective solar absorbers. This study demonstrates the use of the design of experiments to analyze the effect of various geometric factors on the resulting optical response of Ni/NPA in the context of solar-thermal energy conversion. We show how this approach can provide a unique insight into the role of various geometric factors on the solar absorptance and thermal emittance of Ni/NPA-based absorbers, and demonstrate how it can guide the development of spectrally-selective materials. We believe a similar approach can be useful in the development of other optical materials for different applications.