A Universal Route to Realize Radiative Cooling and Light Management in Photovoltaic Modules
A Universal Route to Realize Radiative Cooling and Light Management in Photovoltaic Modules
复制标题
实现光伏组件辐射冷却和光管理的通用途径
DOI：
10.1002/solr.201700084
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发表时间：
2017-10-01
期刊：
影响因子：
7.9
通讯作者：
Song, Weijie
中科院分区：
文献类型：
--
作者：
Lu, Yuehui;Chen, Zhicheng;Song, Weijie
光伏（PV）模块不仅是一种光电系统，而且还是一种光热系统，其中光、电和热力学域是强耦合的。抑制光伏组件中光和热损失的方法仍未开发出来。在此，提出了一种通过超宽带多功能纹理实现辐射冷却和光管理的通用途径，源于通过几何、衍射和亚波长光学效应与可见光、近红外和中红外电磁波（EMW）的相互作用。溶胶-凝胶压印的超宽带纹理在8至13mm的大气窗口处表现出近乎一致的红外发射率超过0.96，用于辐射冷却，并且在350至750 nm的波长处表现出高于0.94和0.95的太阳透射率和雾度，用于光管理。将超宽带纹理压印玻璃应用于硅光伏组件作为封装材料，短路电流和转换效率分别相对提高了5.12%和3.13%。这种超宽带多功能纹理的制造无需光刻、可扩展且兼容光伏行业，通过超宽带物质-EMW相互作用，不仅在光伏模块中，而且在各种光电热器件中，为光和热管理提供了一种经济有效、长期耐用且节能的方法。
Photovoltaic (PV) modules are not only an opto-electrical system, but also opto-thermal one, where the optical, electrical, and thermodynamic domains are strongly coupled. The means to suppress both light and heat losses in PV modules remains undeveloped. Herein, a universal route to realize both radiative cooling and light management via the ultra-broadband versatile textures is proposed, originating from the interaction with the visible, nearinfrared, and mid-infrared electromagnetic waves (EMWs) via geometric, diffractive, and subwavelength optical effects. The sol-gel imprinted ultrabroadband textures exhibited a near-unity infrared emissivity over 0.96 at the atmospheric window between 8 to 13mm for radiative cooling, and a solar transmittance and haze above 0.94 and 0.95 at the wavelengths from 350 to 750 nm, respectively, for light management. Applying the ultra-broadband textures imprinted glass to silicon PV modules as an encapsulant cover, the short-circuit current and conversion efficiency were increased by 5.12 and 3.13% in relative terms, respectively. The fabrication of such ultra-broadband versatile textures was photolithography-free, scalable, and PV industry compatible, which provided a cost-effective, long-term durable, and energyefficient means to both light and thermal management through ultrabroadband matter-EMW interaction not only in PV modules, but also various opto-electro-thermal devices.