Simple and rapid preparation of CuO film using SILAR process for application as hole-transporting layer in p-i-n perovskite solar cell


  • Sutthipoj Wongrerkdee Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus
  • Kritsada Hongsith Faculty of Science, Chiang Mai University and Thailand Center of Excellence in Physics (ThEP center)
  • Supab Choopun Faculty of Science, Chiang Mai University, Thailand Center of Excellence in Physics (ThEP center) and Faculty of Science, Chiang Mai University
  • Khathawut Lohawet National Nanotechnology Center, National Science and Technology Development Agency
  • Pisist Kumno National Nanotechnology Center, National Science and Technology Development Agency


Copper oxide, SILAR process, Hole-transporting layer, Perovskite solar cell


Copper oxide (CuO) films are considered to be an alternative metal oxide semiconductor for hole-transporting layer application in p-i-n perovskite solar cells due to their unique properties including intrinsic p-type materials and energy band level matching. The films can be synthesized using several methods such as sputtering, solution process and spin-coating processes. However, using the successive ionic layer adsorption and reaction (SILAR) process to prepare a CuO hole-transporting layer in p-i-n perovskite solar cells is still underreported. Thus, this study prepared the SILAR processed CuO films and applied as a hole-transporting layer in p-i-n perovskite solar cells. The results showed that morphology of CuO films is slightly changed when the SILAR cycles is increased, in correlation to the increasing of detected copper element. High optical transmittance in visible light region is found for all conditions, indicating a good transparent film for optoelectronic device likely to solar cells. For solar cell application, a commercial PEDOT:PSS hole-transporting layer was used in a p-i-n perovskite solar cell and compared with the CuO films. The solar cells fabricated with CuO films produced lower performance than that fabricated with commercial PEDOT:PSS. The low performance resulted from the incomplete formation of perovskite films when they are deposited onto CuO films, causing carrier loss due to the recombination effect. However, power conversion efficiency was observed where the solar cell was fabricated with CuO films, which could be attributed to the potential of CuO films as an alternative hole-transporting layer in p-i-n perovskite solar cells. The study indicated that the SILAR method could be an alternative offering a simple, fast, and low cost process for p-i-n perovskite solar cell application.


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How to Cite

S. Wongrerkdee, K. Hongsith, S. Choopun, K. Lohawet, and P. . Kumno, “Simple and rapid preparation of CuO film using SILAR process for application as hole-transporting layer in p-i-n perovskite solar cell”, J Met Mater Miner, vol. 28, no. 1, Jun. 2018.



Original Research Articles