Journal of Materials Science

, Volume 54, Issue 6, pp 4884–4892 | Cite as

The effect of CuS counter electrodes for the CdS/CdSe quantum dot co-sensitized solar cells based on zinc titanium mixed metal oxides

  • Dong Liu
  • Jianqiang LiuEmail author
  • Jie Liu
  • Sha Liu
  • Chenglei Wang
  • Zhongwei Ge
  • Xiaotao Hao
  • Na Du
  • Hongdi Xiao
Energy materials


The highly catalytic copper sulfide (CuS) thin films were designed and combined with the FTO substrates by the chemical bath deposition method and were used as counter electrodes (CEs) for the CdS/CdSe quantum dot-sensitized solar cells (QDSSCs) based on zinc titanium mixed metal oxides (MMOs) deriving from the layered double hydroxide precursor for the first time. Formation of CuS films was confirmed by X-ray diffraction and X-ray photon spectroscopy. The surface morphology of CuS films was observed by scanning electron microscopy (SEM). Systemic electrochemical test was used to investigate the catalytic performance of CuS films and the photovoltaic performance of QDSSCs. When the number of deposition cycles (30 min per cycle) was two, the CuS CEs of excellent performance were obtained. The CuS CEs exhibited higher performance for QDSSCs based on ZnTi MMOs than the conventional platinum (Pt) CEs. The best power conversion efficiency of CdS/CdSe QDSSCs using optimal CuS CEs reached 3.95%, which is more than twice higher than that of Pt CEs.



This work was supported by the National Natural Science Foundation of China (Nos. 51372141, 11574181 and 61874067), the Key Research and Development Plan of Shandong Province, China (2018GGX102014, 2018GGX102024) and the China Postdoctoral Science Foundation (2017M610418).


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© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of PhysicsShandong UniversityJinanPeople’s Republic of China
  2. 2.School of Physics and Electrical EngineeringKashgar UniversityKashgarPeople’s Republic of China
  3. 3.Key Laboratory of Colloid and Interface Chemistry (Ministry of Education)Shandong UniversityJinanPeople’s Republic of China
  4. 4.School of MicroelectronicsShandong UniversityJinanPeople’s Republic of China

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