Sustainable Liquid Luminescent Solar Concentrators
Sustainable Liquid Luminescent Solar Concentrators
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DOI：
10.1002/adsu.201800134
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发表时间：
2019-03-01
影响因子：
7.1
通讯作者：
Carlos, Luis D.
中科院分区：
文献类型：
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作者：
Frias, Ana R.;Correia, Sandra F. H.;Carlos, Luis D.
发光太阳能聚光器（LSCs）是光伏（PV）互补装置，克服了硅基光伏电池、响应和太阳光谱之间的不匹配，使光伏城市一体化。发光层面临的挑战包括使用丰富和可持续的天然有机分子。本文提出了一种由玻璃容器组成的LSCs，该LSCs基于圆柱形中空塑料光纤束，光纤束中填充从紫菜藻类中提取的r -藻红蛋白（R-PE）水溶液。R-PE溶液吸收紫外线/可见光光谱范围（300-550 nm），并将其转化为红光（550-700 nm），最大绝对量子产率约为0.39。在这项工作中，报告了具有不同几何形状的LSCs，其中R-PE发射对平面器件和一束圆柱形LSCs分别产生高达约6.88%和约4.74%的光转换效率值，这是使用可持续发射中心的液体lcs所知的最大值。此外，LSCs与商用硅基光伏器件的耦合产生的功率转换效率值约为0.27%（平面），约为23.03 × 10(-3)%（束）。这些价值说明了这种方法在开发满足可靠、可持续和有竞争力的能源系统要求的天然LSCs方面的潜力。
Luminescent solar concentrators (LSCs) are photovoltaic (PV) complementary devices to overcome the mismatch between the Si-based PV cells, response and the solar spectrum, allowing PV urban integration. Challenges for the luminescent layer include the use of abundant and sustainable natural organic molecules. Here, LSCs composed of a glass container and based on bundles of cylindrical hollow-core plastic optical fibers filled with aqueous solutions of R-phycoerythrin (R-PE), extracted from Gracilaria sp. algae are presented. The R-PE solutions absorb in the UV/visible spectral range (300-550 nm) and convert this radiation into red-emission (550-700 nm) with a maximum absolute quantum yield of approximate to 0.39. In this work, LSCs with distinct geometries are reported, in which the R-PE emission yields optical conversion efficiency values up to approximate to 6.88% and approximate to 4.74% for a planar device and for a bundle of cylindrical LSCs, respectively, which are the largest values known for liquid-based LCSs using sustainable emitting centres. Moreover, the coupling of the LSCs to commercial Si-based PV devices yields power conversion efficiency values of approximate to 0.27% (planar) and approximate to 23.03 x 10(-3)%, (bundle). These values illustrate the potential of this approach for the development of natural-based LSCs meeting the requirements of reliable, sustainable, and competitive energy systems.