High-efficiency AgInS2-Modified ZnO nanotube array photoelectrodes for all-solid-state hybrid solar cells

Jianhua Han, Zhifeng Liu*, Keying Guo, Jing Ya, Yufeng Zhao, Xueqi Zhang, Tiantian Hong, Junqi Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


Highly ordered AgInS2-modified ZnO nanoarrays were fabricated via a low-cost hydrothermal chemical method, and their application as all-solid-state solar cells was also tested. A sensitizer and a buffer layer were developed around the surface of ZnO nanotubes in the preparation process, and this method is easily be manipulated to produce uniform structure. In this structure, the ZnO served as direct electron transport path, the ZnS as the buffer layer, and the ternary sensitizer AgInS2 as absorber and outer shell. The novel all-solid-state hybrid solar cells (ITO/ZnO/ZnS/AgInS2/P3HT/Pt) showed improved short-circuit current density (Jsc) of 7.5 mA/cm2, open-circuit voltage (Voc) of 512 mV, giving rise to a power conversion efficiency of 2.11%, which is the relatively highest value ever reported for ZnO-based all-solid-state hybrid solar cells. This better result is attributed to the improved absorption spectrum, high speed of photoinduced charge transmission velocity, and appropriate gradient energy gap structure, which implies a promising application in all-solid-state solar cells.

Original languageEnglish
Pages (from-to)17119-17125
Number of pages7
JournalACS applied materials & interfaces
Issue number19
StatePublished - 8 Oct 2014
Externally publishedYes


  • AgInS
  • all-solid-state
  • buffer layer
  • highly ordered
  • solar cell


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