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首页> 外文期刊>Optik: Zeitschrift fur Licht- und Elektronenoptik: = Journal for Light-and Electronoptic >Low cost dye-sensitized solar cells based on zinc oxide and natural anthocyanin dye from Ardisia elliptica fruits
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Low cost dye-sensitized solar cells based on zinc oxide and natural anthocyanin dye from Ardisia elliptica fruits

机译：基于氧化锌和天然花青素染料的低成本染料敏化太阳能电池来自Ardisia Elliptica果实

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摘要

Natural dye is attractive to be used in dye sensitized solar cell (DSSC) as an alternative sensitizer. The main advantage of natural dye is its low cost production. Only simple procedure is needed to produce natural dyes where the pigments of plant parts like flowers, leaves, fruits and tubers were extracted using common solvents in the laboratory. In addition, the resources of natural dye are not only abundant, but also completely biodegradable. In this work, the natural dye was produced by extracting anthocyanin pigment from Ardisia elliptica fruits and called as Ardisia elliptica dye (AED). The highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) level of AED was -6.06 eV and -3.88 eV respectively. AED is absorbed light in the green region with maximum absorption at a wavelength of 536.49 nm and the band gap was 2.31 eV which is acceptable as sensitizer for DSSC. Our photoelectrode of DSSC was fabricated by sensitizing zinc oxide (ZnO) nanoparticles layer with AED in different sensitizing duration (dye-loading time) and the best obtained photo conversion efficiency (PCE) was 0.04% which has been sensitized for 20 min.
机译：天然染料是有吸引力在染料中使用敏化太阳能电池（DSSC）作为替代敏化剂。天然染料的主要优点是它的低生产成本。只需要简单的步骤，以在实验室中使用常用的溶剂，其中提取的植物部分像花，叶，果实和块茎色素天然染料。此外，天然染料的资源不仅丰富，而且完全生物降解。在这项工作中，天然染料通过提取从兰屿树杞果花色苷色素产生并称为兰屿树杞染料（AED）。最高占据分子轨道（HOMO）和最低未占分子轨道（LUMO）的AED水平为-6.06 eV和-3.88 eV的分别。 AED是与最大吸收绿色区域在536.49波长吸收的光与带隙为2.31电子伏特，其是作为敏化剂用于DSSC可以接受的。我们的DSSC的光电极通过敏化氧化锌制造（ZnO）的纳米粒子与AED层在不同的持续时间增敏（染料加载时间）和得到最好的光转换效率（PCE）为已被致敏20分钟0.04％。

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