Frontiers of Optoelectronics

, Volume 10, Issue 2, pp 103–110 | Cite as

Hole-transporting layer-free inverted planar mixed lead-tin perovskite-based solar cells

  • Yuqin Liao
  • Xianyuan Jiang
  • Wenjia Zhou
  • Zhifang Shi
  • Binghan Li
  • Qixi Mi
  • Zhijun Ning
Research Article


Mixed lead-tin (Pb-Sn) perovskites present a promising strategy to extend the light-harvesting range of perovskite-based solar cells (PSCs). The use of electrontransporting layer or hole-transporting layer (HTL) is critical to achieve high device efficiency. This strategy, however, requires tedious layer-by-layer fabrication as well as high-temperature annealing for certain oxides. In this work, we fabricated HTL-free planar FAPb0.5Sn0.5I3 PSCs with the highest efficiency of 7.94%. High shortcircuit current density of 23.13 mA/cm2 was attained, indicating effective charge extraction at the ITO/FAPb0.5Sn0.5I3 interface. This finding provides an alternative strategy to simplify the manufacture of single-junction or tandem PSCs.


solar cell perovskite hole-transporting layer (HTL) interface engineering 


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This work was supported by start-up funding from ShanghaiTech University, The Young 1000 Talents Program, the National Natural Science Foundation of China (Grant Nos. U1632118, and 21571129), the National Key Research Program (No. 2016YFA0204000), the Shanghai Key Research Program (No. 16JC1402100), and the Shanghai International Cooperation Project (No. 16520720700). The authors are grateful to the test centers of both ShanghaiTech University and CAS Key Laboratory of Low- Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences.


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Copyright information

© Higher Education Press and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Yuqin Liao
    • 1
    • 2
    • 3
  • Xianyuan Jiang
    • 2
    • 3
  • Wenjia Zhou
    • 2
  • Zhifang Shi
    • 2
    • 3
  • Binghan Li
    • 2
    • 3
  • Qixi Mi
    • 2
  • Zhijun Ning
    • 2
  1. 1.Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghaiChina
  2. 2.School of Physical Science and TechnologyShanghaiTech UniversityShanghaiChina
  3. 3.University of Chinese Academy of SciencesBeijingChina

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