Sb2S3纳米粒子修饰ZnO纳米片微纳分级结构的光电化学性能

Photoelectrochemical Properties of Hierarchical ZnO Nanosheets Micro-Nanostructure Modified with Sb2S3 Nanoparticles

We fabricated highly ordered ZnO nanosheet arrays on ITO substrates by adding KCl and ethylenediamine(EDA) through potentiostatic deposition, then produced a hierarchical structure of ZnO nanorods on the nanosheets by using secondary electrodeposition. Shell-core Sb₂S₃/ZnO nanostructures were prepared from ZnO nanosheets and ZnO nanorods on nanosheets by chemical bath deposition. The nanostructures were characterized using scanning electron microscopy (SEM) and X-ray diffraction (XRD), and their photoelectrochemical properties were investigated using ultraviolet-visible spectroscopy (UV-Vis) and photocurrent measurements. The shell-core Sb₂S₃/ZnO based on the hierarchical micronanostructure had higher photocurrent than did the shell-core Sb₂S₃/ZnO nanosheets. A hybrid solar cell was fabricated with a P3HT/Sb₂S₃/ZnO film as the photoactive layer. The P3HT/Sb₂S₃/ZnO hierarchical electrode exhibited an energy conversion efficiency as high as 0.81%.