Photoelectrochemical and spectrophotometric studies on dye-sensitized solar cells (DSCs) and stable modules (DSCMs) based on natural apocarotenoids pigments
Photoelectrochemical and spectrophotometric studies on dye-sensitized solar cells (DSCs) and stable modules (DSCMs) based on natural apocarotenoids pigments
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DOI：
10.1016/j.dyepig.2018.03.021
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发表时间：
2018-08-01
影响因子：
4.5
通讯作者：
Di Marco, Gaetano
中科院分区：
文献类型：
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作者：
Calogero, Giuseppe;Barichello, Jessica;Di Marco, Gaetano
我们提出了一个染料敏化太阳能电池（DSC）的研究，我们制作染料敏化太阳能电池组件（DSCMs）的基础上，天然的阿朴胡萝卜素提取自胭脂树的种子（胭脂树）。使用较低极性的溶剂如乙醚提高胭脂树提取物中的胭脂树红浓度，胭脂树红提取物在装置中用作敏化剂。我们测量了胭脂树的IPCE max（类似于33%），并估计phi（inj）>= 0.438。通过准确和渐进的优化二氧化钛多层光阳极和电解质组合物的效率（η）约1.6%，实现了约742%的改善相比，胭脂树提取物的最佳性能，到目前为止报道。DSCM显示出在1个太阳下超过1000小时（保质期测试）的稳定性，并且在类似的时间段内产生类似于46.8Ah的电池容量，相当于类似于15型AAA标准电池。虽然胭脂树红的DSCM仍然低于大规模工业实际应用的效率要求，但我们令人鼓舞的结果证明了这种颜料在生产无毒，廉价，长期稳定和环保的植物太阳能设备方面的潜力，作为小型电子产品市场电池的替代品。
We present a study on dye-sensitized solar cells (DSCs) and we fabricate dye-sensitized solar modules (DSCMs) based on natural apocarotenoids extracted from the achiote's seeds (annatto). Use of less polar solvent such as diethyl ether improves the bixin concentration in the annatto extract which, was employed as sensitizer in the devices. We measure IPCE max (similar to 33%) and estimate phi(inj) >= 0.438 for annatto. By accurate and progressive optimization of both TiO2 multilayer photoanode and of electrolyte composition an efficiency (eta) around 1.6%, is achieved, with an improvement of about similar to 742% compare to the best performance for annatto extract, so far reported. DSCM shows stability which overcomes 1000 h (shelf-life test), under 1 sun, and produces a battery capacity of similar to 46.8 Ah, the equivalent to similar to 15 type AAA standard battery, in a similar time period. Although annatto based DSCMs are still below the efficiency requirements for practical applications for large scale industry, our encouraging results, testify the potentiality of this pigment in the production of non-toxic, cheap, long term stable and environmentally friendly vegetable based solar devices, as alternatives to batteries for small electronic goods market.