Acta Phys. -Chim. Sin. ›› 2015, Vol. 31 ›› Issue (11): 2109-2116.doi: 10.3866/PKU.WHXB201509151

• ELECTROCHEMISTRY AND NEW ENERGY • Previous Articles     Next Articles

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

Yan-Zhong. HAO1,2(),Zhi-Min. GUO1,Bao. SUN2,Juan. PEI2,Shang-Xin. WANG2,Ying-Pin. LI2   

  1. 1 College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, P. R. China
    2 College of Science, Hebei University of Science and Technology, Shijiazhuang 050018, P. R. China
  • Received:2015-04-08 Published:2015-11-13
  • Supported by:
    the National Natural Science Foundation of China(21173065);Natural Science Foundation of Hebei Province,China(B2014208062, B2014208066, B2010000856)

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Abstract:

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%.

Key words: Sb2S3 nanoparticle, ZnO nanosheet, Hierarchical ZnO micro-nanostructure of nanorods on nanosheets, Shell-core structure, Hybrid solar cell