Abstract In the present study, we report on the synthesis of ZnO nanoparticles using Tilia Tomentosa (Ihlamur) leaves extract followed by calcination at 400 °C for 15 min. The prepared ZnO nanoparticles were characterized by XRD and SEM to study the phase and microstructure, respectively. The XRD analysis showed the absence of impurity peaks and the SEM image confirmed the spherical nature of the prepared ZnO nanoparticles with an average particle size of 80 nm. UV-Visible spectroscopy was used to study the optical properties, and the bandgap was calculated to be 3.55 eV. This large bandgap is attributed to the property of the semiconductor, which can be explored for solar cell applications. Therefore, we used green synthesized ZnO nanoparticles to fabricate dye-sensitized solar cells (DSSC). From the J-V curves, we calculated the DSSC parameters such as open-circuit voltage (Voc), short circuit current density (Jsc), fill factor (FF) and efficiency (η), and their values were 0.65 V, 6.26 mA, 48.5%, and 1.97%, respectively, at 100 mW/cm2.

中文翻译：

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绿色合成氧化锌纳米颗粒染料敏化太阳能电池的制备与表征

摘要 在本研究中，我们报告了使用毛椴 (Ihlamur) 叶提取物合成 ZnO 纳米颗粒，然后在 400 °C 下煅烧 15 分钟。通过XRD和SEM对制备的ZnO纳米颗粒进行表征，分别研究其物相和微观结构。XRD 分析表明不存在杂质峰，SEM 图像证实了所制备的平均粒径为 80 nm 的 ZnO 纳米颗粒的球形性质。紫外-可见光谱用于研究光学性质，计算带隙为3.55 eV。这种大的带隙归因于半导体的特性，可用于太阳能电池应用。因此，我们使用绿色合成的 ZnO 纳米粒子来制造染料敏化太阳能电池 (DSSC)。从 JV 曲线来看，