Transparent Power-Generating Windows Based on Solar-Thermal-Electric Conversion
Transparent Power-Generating Windows Based on Solar-Thermal-Electric Conversion
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基于光热电转换的透明发电窗
DOI：
10.1002/aenm.202101213
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发表时间：
2021
影响因子：
27.8
通讯作者：
Chen Lidong
中科院分区：
文献类型：
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作者：
Zhang Qihao;Huang Aibin;Ai Xin;Liao Jincheng;Song Qingfeng;Reith Heiko;Cao Xun;Fang Yueping;Schierning Gabi;Nielsch Kornelius;Bai Shengqiang;Chen Lidong
将透明的太阳能收集系统集成到窗户中可以在不改变建筑美学或施加进一步设计限制的情况下提供可再生的现场能源供应。透明光伏已经显示出巨大的潜力，但是增加的透明度是以降低功率转换效率为代价的。本文提出了一种新技术，通过将太阳能-热电转换与材料的波长选择性吸收相结合，克服了这一限制。由cs0.33 wo3和树脂组成的波长选择性薄膜具有高可见光透过率（高达88%）和出色的紫外和红外吸收性，从而将吸收的光转化为热而不牺牲透明度。将薄膜与热电发电耦合的原型在暴露于阳光下的0.01 m2面积内产生≈4 V的非凡输出电压。进一步的优化设计和实验验证证明了与最先进的透明光伏相当的高转换效率，丰富了现场节能和透明发电的库。
Integrating transparent solar‐harvesting systems into windows can provide renewable on‐site energy supply without altering building aesthetics or imposing further design constraints. Transparent photovoltaics have shown great potential, but the increased transparency comes at the expense of reduced power‐conversion efficiency. Here, a new technology that overcomes this limitation by combining solar‐thermal‐electric conversion with a material's wavelength‐selective absorption is presented. A wavelength‐selective film consisting of Cs0.33WO3and resin facilitates high visible‐light transmittance (up to 88%) and outstanding ultraviolet and infrared absorbance, thereby converting absorbed light into heat without sacrificing transparency. A prototype that couples the film with thermoelectric power generation produces an extraordinary output voltage of ≈4 V within an area of 0.01 m2exposed to sunshine. Further optimization design and experimental verification demonstrate high conversion efficiency comparable to state‐of‐the‐art transparent photovoltaics, enriching the library of on‐site energy‐saving and transparent power generation.