Red Sicilian orange and purple eggplant fruits as natural sensitizers for dye-sensitized solar cells
Red Sicilian orange and purple eggplant fruits as natural sensitizers for dye-sensitized solar cells
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DOI：
10.1016/j.solmat.2008.05.007
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发表时间：
2008-11-01
影响因子：
6.9
通讯作者：
Di Marco, Gaetano
中科院分区：
文献类型：
--
作者：
Calogero, Giuseppe;Di Marco, Gaetano
采用红色西西里橙汁（Citrus Sinensis）和紫色茄子皮提取物（Solanum melongena， L）作为TiO2薄膜的天然敏化剂，组装了染料敏化太阳能电池（DSSCs）。两种基于水果的太阳能电池都成功地将太阳能转化为电能。红橙汁染料在AM 1.5照度下的最佳太阳能转换效率（eta = 0.66%）可达J(sc) = 3.84 mA/cm(2), V-oc = 0.340 V，填充系数= 0.50。以茄子皮提取物为例，测定的J(sc) = 3.40 mA/cm(2), V-oc = 0.350 V，填充系数= 0.40。红橙和茄子鸡尾酒染料的主要色素分别是花青素-3-葡萄糖苷（cyanine）和飞燕苷3-14-（对香豆醇）- l -鼠李糖(1-6)-葡萄糖苷]-5-葡萄糖苷（nasunin）。实际上，它们的应用远远低于工业要求。然而，他们的研究是一项有趣的多学科练习，有助于传播知识和教育人们了解可再生能源。本文报道并讨论了上述化合物的结构、吸收光谱和敏化活性的作用。(C) 2008 Elsevier B.V.版权所有
Dye-sensitized solar cells (DSSCs) were assembled by using red Sicilian orange juice (Citrus Sinensis) and the purple extract of eggplant peels (Solanum melongena, L) as natural sensitizers of TiO2 films. Conversion of solar light into electricity was successfully accomplished with both fruit-based solar cells. The best solar energy conversion efficiency (eta = 0.66%) was obtained by red orange juice dye that, under AM 1.5 illumination, achieved up to J(sc) = 3.84 mA/cm(2), V-oc = 0.340 V and fill factor = 0.50. In the case the extract of eggplant peels, the values determined were up to J(sc) = 3.40 mA/cm(2), V-oc = 0.350 V and fill factor= 0.40. Cyanidine-3-glucoside (cyanine) and delphinidin 3-14-(p-coumaroyl)-L-rhamnosyl(1-6)-glucopyranoside]-5-glucopyranoside (nasunin) are the main pigments of cocktail dyes for red orange and eggplant, respectively. Actually, their application is far below the industrial requirements. Nevertheless, their study is an interesting multidisciplinary exercise useful for dissemination of knowledge and to educate people on renewable energy sources. Here, we report and discuss the role of the structure, the absorption spectra and the sensitization activity of the mentioned compounds. (C) 2008 Elsevier B.V. All rights reserved.