Design and Response of High-Efficiency, Planar, Doped Luminescent Solar Concentrators Using Organic-Inorganic Di-Ureasil Waveguides
Design and Response of High-Efficiency, Planar, Doped Luminescent Solar Concentrators Using Organic-Inorganic Di-Ureasil Waveguides
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DOI：
10.1002/adom.201500412
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发表时间：
2016-03-01
影响因子：
9
通讯作者：
Evans, Rachel C.
中科院分区：
文献类型：
--
作者：
Kaniyoor, Adarsh;McKenna, Barry;Evans, Rachel C.
发光太阳能聚光器（LSCs）为城市环境中的太阳能捕获提供了巨大的潜力。本文报道了第一个使用Lumogen Red （LR305）作为发光团和双脲基有机-无机杂化物作为波导的平面掺杂LSC的例子。与有机聚合物波导相比，双脲嘧啶波导具有几个优点，包括易于从良性溶剂中处理溶液，以及通过能量转移延长吸收窗口。利用吸收光谱和光致发光光谱进行光谱评估来优化LSC的组成，其光效率高达14.5% （300-800 nm）。使用双脲醛前驱体作为光胶，将冠军LSC耦合到c-Si光伏电池上，可获得0.54%的功率转换效率（PCE），以减少界面损失。最后，我们提出了一个简单的性能指标来评估LSC-太阳能电池复合系统的性能，该指标可以比较由于LSC的附着而导致的太阳能电池效率的实际提高，而不考虑LSC的设计、结构或材料。在LSC的发射区，太阳能电池的PCE为17.4%，比其AM 1.5G值提高了约40%。
Luminescent solar concentrators (LSCs) offer significant potential for solar energy capture in the urban environment. Here, the first example of a planar, doped LSC using Lumogen Red (LR305) as the luminophore and a di-ureasil organic-inorganic hybrid as the waveguide is reported. The di-ureasil waveguide offers several advantages over organic polymer waveguides including facile solution-processing from benign solvents and extension of the absorption window through energy transfer. Spectral evaluation using absorption and photoluminescence spectroscopies is used to optimize the LSC composition, yielding optical efficiencies as high as 14.5% (300-800 nm). A power conversion efficiency (PCE) of 0.54% is obtained for the champion LSC coupled to a c-Si PV cell using the di-ureasil precursor as an optical glue to minimize interfacial losses. Finally, a simple figure of merit to evaluate the performance of LSC-solar cell composite systems is proposed that enables comparison of the actual improvement in the efficiency of solar cells due to the attachment of the LSC, irrespective of the LSC design, architecture or materials. A PCE of 17.4% for the solar cell in the emission region of the LSC is obtained, which is a remarkable improvement of approximate to 40% over its AM 1.5G value.