Abstract A combination of two synthetic organic dyes, namely eosin Y and bromophenol were utilized as a novel category of dye for dye-sensitized solar cells (DSSCs). XRD study revealed the anatase form of titanium dioxide. SEM showed roughly spherical and non-homogenous nature of particles. Energy dispersive spectroscopy (EDS) spectrum analysis showed no impurity in TiO2 and ZnO, thus revealing purity in photo electrode materials. The absorbance of dyes was observed by using UV–Vis absorbance spectroscopy. The dyes showed absorbance from visible to near infra red region. Electrochemical impedance spectroscopy (EIS) measures dye solar cell internal resistance. The performance of photovoltaic cells was studied under 100 mW/cm2 illumination. An enhancement in the power conversion was achieved by using mixed dye (2.31%) that is much higher than single dyed cell (1.62%; eosin Y). The mixed dye exhibiting good device performance and high electrocatalytic activity can provide a sufficiently low cost dye for ruthenium free DSSCs.

中文翻译：

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混合合成有机染料作为敏化剂基染料敏化太阳能电池的性能评价

摘要 两种合成有机染料，即曙红 Y 和溴苯酚的组合被用作染料敏化太阳能电池 (DSSC) 的一类新型染料。XRD 研究揭示了二氧化钛的锐钛矿形式。SEM显示颗粒的大致球形和非均质性质。能量色散光谱 (EDS) 光谱分析表明 TiO2 和 ZnO 中没有杂质，因此揭示了光电极材料的纯度。染料的吸光度用紫外-可见吸收光谱法观察。染料显示出从可见光到近红外区域的吸光度。电化学阻抗谱 (EIS) 测量染料太阳能电池的内阻。在 100 mW/cm2 光照下研究了光伏电池的性能。通过使用混合染料 (2. 31%）远高于单染色细胞（1.62%；曙红 Y）。混合染料表现出良好的器件性能和高电催化活性，可为不含钌的 DSSC 提供足够低成本的染料。