Transparent porphyrin-based hybrid films for spectral selective solar harvesting and energy generation
Transparent porphyrin-based hybrid films for spectral selective solar harvesting and energy generation
复制标题
用于光谱选择性太阳能收集和能源产生的透明卟啉基混合薄膜
DOI：
10.1016/j.solmat.2022.111788
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发表时间：
2022
影响因子：
6.9
通讯作者：
Shi, Donglu
中科院分区：
文献类型：
--
作者：
Lin, Jou;Wang, Yuxin;Lyu, Mengyao;Deng, Zicheng;Shi, Donglu
光谱选择性太阳能收获是实现在指定的频率区域光热能源的产生。在这项研究中，我们设计并合成了基于卟啉的杂化物，它们通常在400 nm（蓝紫色）和700 nm（近红外）附近分别表现出两个吸收峰。为了能够调整光学吸收以获得更有效的太阳能收获，特别是在红外区域，通过结合另一种卟啉化合物（如酞菁）和具有不同吸收特性的无机Fe3O4@Cu2-xS纳米颗粒，开发了独特的卟啉杂交体。通过控制各组分的比例，杂化产物的光谱变化逐渐一致，具有较高的光谱可调性。混合材料的透明薄膜沉积在玻璃基板上，并在长方体光热发生器中平行组装，用于3D太阳能收集。太阳光能够穿过多层薄膜，在每层薄膜上产生显著的热能，以增强能量密度。杂化体的结构特征与基于拉曼研究的光学行为有很好的相关性。还讨论了与杂化结构相关的光热行为的操作机制。
Spectral-selectively solar harvest is achieved in designated frequency regions for photothermal energy generation. In this study, we have designed and synthesized porphyrin-based hybrids that typically exhibit two absorption peaks respectively near 400 nm (blue-violet) and 700 nm (NIR). To be able to tune the optical absorptions for more efficient solar harvest especially in the IR region, unique porphyrin hybrids are developed by incorporating another porphyrin compound such as phthalocyanine, and inorganic Fe3O4@Cu2-xS nanoparticles with different absorption characteristics. By controlling the ratio of the components, the hybrids exhibit gradual and consistent changes in the optical spectra, showing high spectral tunability. Transparent thin films of the hybrids are deposited on glass substrates and assembled in parallel for 3D solar harvesting in a cuboid photothermal generator. Solar light is able to pass through the multilayers of thin films, generating significant thermal heat on each one for enhanced energy density. The structural features of the hybrids are well correlated to the optical behaviors based on Raman studies. Also discussed is the operating mechanisms underlying the photothermal behaviors associated with the hybrid structures.