Fabrication of TiO2 nanorods/nanoparticles mixed phase structure via a simple dip-coating method and its application in perovskite solar cells

  • Shuang Feng
  • A. Runa
  • Li Liu
  • Jun Wang
  • Pengyu Su
  • Tie Liu
  • Shi Su
  • Guijie Zhu
  • Wuyou FuEmail author
  • Haibin YangEmail author


In this work, a TiO2 nanorods/nanoparticles hybrid arrays structure is used as the electron transporting layer in perovskite solar cells (PSCs). Compared with the devices based on bare TiO2 nanorods (NRs), the novel structure with rutile/anatase mixed phase can ensure a better growth of perovskite film and efficient separation of electron–hole. The device based on the nanorods/nanoparticles mixed phase structure shows the open-circuit voltage (Voc) of 0.96 V, short-circuit current density (Jsc) of 17.96 mA cm−2, fill factor of 0.61, yielding a power conversion efficiency (PCE) of 10.55% in ambient air under controlled humidity. The overall PCE enhancement of the device is 1.4 times higher than that of the bare NRs based PSCs. This study indicates that the nanorods/nanoparticles mixed phase structure has a great potential for application in PSCs.



This work is financially supported by the Technology Development Program of Jilin Province (Grant No. 20130206078GX) and National Natural Science Foundation of China (No. 51272086). Open Project of State Key Laboratory of Superhard Materials (No. 201713).

Compliance with ethical standards

Conflict of interest

All the authors declare that they have no conflict of interest.

Supplementary material

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Supplementary material 1 (DOC 2820 KB)


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Copyright information

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

Authors and Affiliations

  • Shuang Feng
    • 1
  • A. Runa
    • 1
  • Li Liu
    • 1
  • Jun Wang
    • 1
  • Pengyu Su
    • 1
  • Tie Liu
    • 1
  • Shi Su
    • 1
  • Guijie Zhu
    • 1
  • Wuyou Fu
    • 1
    Email author
  • Haibin Yang
    • 1
    Email author
  1. 1.State Key Laboratory of Superhard MaterialsJilin UniversityChangchunPeople’s Republic of China

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