Fabrication of Organolead Iodide Perovskite Solar Cells with Niobium-doped Titanium Dioxide as Compact Layer

Authors

  • Nguyen Tran Thuat Nano and Energy Center, VNU University of Science
  • Bui Bao Thoa Department of Advanced Materials Science and Nanotechnology, University of Science and Technology of Hanoi
  • Nguyen Bao Tran Department of Advanced Materials Science and Nanotechnology, University of Science and Technology of Hanoi
  • Nguyen Minh Tu Nano and Energy Center, VNU University of Science
  • Nguyen Ngoc Minh Nano and Energy Center, VNU University of Science
  • Hoang Ngoc Lam Huong Nano and Energy Center, VNU University of Science
  • Pham Thu Trang Faculty of Engineering Physics and Nanotechnology, VNU University of Engineering and Technology
  • Phan Vu Thi Van Faculty of Engineering Physics and Nanotechnology, VNU University of Engineering and Technology
  • Truong Thanh Tu Faculty of Chemistry, VNU University of Science
  • Dang Tuan Linh Nano and Energy Center, VNU University of Science

DOI:

https://doi.org/10.15625/0868-3166/27/2/9811

Keywords:

perovskite, CH3NH3PbI3, solar cells, NTO, TTO, CuSCN

Abstract

Organometal halide perovskite materials have shown high potential as light absorbers for photovoltaic applications. In this work, perovskite planar solar cells were fabricated on corning substrates with the structure as follows: the first layer made of tantalum-doped tin oxide as transparent contact material, followed by sputtering niobium-doped titanium oxide as the compact electron transport layer; covered with perovskite CH3NH3PbI3 as the light harvester by combination between spin-coating and dipping methods; CuSCN was evaporated as the hole transport layer; the final thin Al/Ag electrodes were deposited. This configuration is shortly described as Al/TTO/NTO/CH3NH3PbI3/CuSCN/Ag. Such heterojunctions are expected to be suitable for the development of efficient hybrid solar cells. The fabricated cells were measured under the air mass 1.5 illumination condition, showed the rectification effect and exhibited a power conversion efficiency of 0.007%, with a open circuit voltage of 53.2 mV, a short circuit current of 0.36 mA/cm2, and a form factor of 37%. The power conversion efficiency will be further optimized in near future.

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Author Biographies

Nguyen Tran Thuat, Nano and Energy Center, VNU University of Science

Physics, Nanotechnology, Material Science

Dang Tuan Linh, Nano and Energy Center, VNU University of Science

VNU University of Science

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Published

24-08-2017

How to Cite

Thuat, N. T., Thoa, B. B., Tran, N. B., Tu, N. M., Minh, N. N., Huong, H. N. L., Trang, P. T., Van, P. V. T., Tu, T. T., & Linh, D. T. (2017). Fabrication of Organolead Iodide Perovskite Solar Cells with Niobium-doped Titanium Dioxide as Compact Layer. Communications in Physics, 27(2), 121. https://doi.org/10.15625/0868-3166/27/2/9811

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