利用从美丽花和碧沙籽中提取的天然染料提高转换效率，揭示共敏化 DSSC 的应用前景

IF 3.1 3区物理与天体物理 Q2 Engineering

Optik Pub Date : 2024-10-10 DOI:10.1016/j.ijleo.2024.172072

Ishwar Chandra Maurya, Shalini Singh, Shubham Sharma, Shiva Prakash Singh Kushwaha, Pankaj Srivastava, Lal Bahadur

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引用次数: 0

摘要

在本报告中，我们介绍了从美丽花和碧沙籽中提取的两种天然染料对基于二氧化钛的染料敏化太阳能电池（DSSC）的共敏化效应研究。目的是提高所选染料的光谱灵敏度和光-电能转换效率。在 480-580 纳米和 400-500 纳米范围内的紫外可见光吸收分别表示 Mirabilis 花中的花青素和 Bixa 种子中的类胡萝卜素。碧沙籽和海芋花提取的混合天然染料在 400-600 纳米范围内有吸收。该研究通过计算研究和电化学阻抗光谱（EIS）研究进一步确定了共敏化作用。使用碧沙籽和海芋花提取的染料后，光伏参数短路电流密度（Jsc）和amp；转换效率（η）分别为 0.20 mA/cm2、0.44 mA/cm2 和 0.09 % 0.38 %。Bixa 种子和 Mirabilis 花提取物共同敏化的 DSSC 显示出更高的 Jsc 0.65 mA/cm2 和 η 0.40 %。

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Enhanced conversion efficiency enabled with natural dyes extracted from Mirabilis flower and Bixa seed revealing prospects of application of co-sensitized DSSC

In this report, we present the studies on co-sensitization effects of two natural dyes extracted from Mirabilis flower and Bixa seeds on TiO₂-based dye-sensitized solar cells (DSSC). The objective is to extend the spectral sensitivity and light-to-electrical energy conversion efficiency of the selected dyes. UV–visible absorption within the 480–580 nm and 400–500 nm range signify anthocyanin in Mirabilis flower and carotenoid in Bixa seed respectively. Bixa seed and Mirabilis flower extracted mixed natural dye exhibited absorption in 400–600 nm range. The study further established the co-sensitization through computational studies and electrochemical impedance spectroscopy (EIS) studies. With the use of Bixa seed and Mirabilis flower extracted dye, photovoltaic parameter short-circuit current density (J_sc) & conversion efficiency (η) were observed 0.20 mA/cm², 0.44 mA/cm² and 0.09 % 0.38 % respectively. The Bixa seed and Mirabilis flower extracts co-sensitized DSSC revealed enhanced J_sc 0.65 mA/cm² and η 0.40 %.

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来源期刊

Optik 物理-光学

CiteScore

6.90

自引率

12.90%

发文量

1471

审稿时长

46 days

期刊介绍： Optik publishes articles on all subjects related to light and electron optics and offers a survey on the state of research and technical development within the following fields: Optics: -Optics design, geometrical and beam optics, wave optics- Optical and micro-optical components, diffractive optics, devices and systems- Photoelectric and optoelectronic devices- Optical properties of materials, nonlinear optics, wave propagation and transmission in homogeneous and inhomogeneous materials- Information optics, image formation and processing, holographic techniques, microscopes and spectrometer techniques, and image analysis- Optical testing and measuring techniques- Optical communication and computing- Physiological optics- As well as other related topics.