In this study, ZnO and CdS deposited ZnO nanostructured material was successfully synthesized by using co-precipitation and ultra-sonication methods, respectively. A comparative study of the sensitization of ZnO and nanostructured ZnO/CdS with two different dyes (carminic acid and pyrocatechol violet) and applications of the synthesized material in solid state dye sensitized solar cells (DSSCs) are reported here. The characterization of the materials was performed by using x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-visible spectroscopy, and Fourier transform infrared spectroscopy (FTIR). The SEM and TEM results showed that surface of ZnO nano spheres is well covered with CdS. UV-visible spectrum showed the rise of a new optical band due to CdS deposition which effectively tuned the band gap of ZnO from 3.12 eV to 1.877 eV. XRD analysis revealed the successful formation of hexagonal phases of CdS and ZnO. The materials were applied as photoanodes in DSSCs with and without dye sensitization. P3HT (Poly (3-hexylthiophene) was used as a hole conducting polymer. CdS deposition and sensitization with different dyes showed a significant effect on the overall efficiency of fabricated devices. The ZnO/CdS based DSSC sensitized with carminic acid showed a current density (Jsc) of 8.72 mA/cm² with an open circuit voltage (Voc) of 0.43V and an overall efficiency of 1.42%. While the same photoanode material sensitized with pyrocatechol violet gave Jsc value of 9.13 mA/cm² with a Voc of 0.39V and an overall efficiency of 1.55%.

在这项研究中，分别使用共沉淀法和超声法成功地合成了ZnO和CdS沉积的ZnO纳米结构材料。本文报道了两种不同的染料（氨基甲酸和邻苯二酚紫）对ZnO和纳米结构ZnO / CdS的敏化作用的比较研究，以及合成材料在固态染料敏化太阳能电池（DSSC）中的应用。通过使用X射线衍射（XRD），扫描电子显微镜（SEM），透射电子显微镜（TEM），紫外可见光谱和傅里叶变换红外光谱（FTIR）对材料进行表征。SEM和TEM结果表明，ZnO纳米球表面被CdS很好地覆盖。紫外可见光谱显示由于CdS沉积而产生的新光学带的上升，有效地将ZnO的带隙从3.12 eV调节到1.877 eV。XRD分析表明成功形成了CdS和ZnO六方相。该材料在有和没有染料敏化的情况下都用作DSSC中的光阳极。P3HT（聚（3-己基噻吩）用作空穴传导聚合物。CdS的沉积和不同染料的敏化对所制造器件的整体效率产生显着影响。ZnO/ CdS基的丁香胺敏化的DSSC显示出电流密度（ Jsc）为8.72 mA / cm^图2中的电路的开路电压（Voc）为0.43V，总效率为1.42％。而用邻苯二酚紫敏化的相同光阳极材料的Jsc值为9.13 mA / cm ²，Voc为0.39V，总效率为1.55％。