Copper Iodide Inorganic Hole Transport Layer in Perovskite Solar Cells
Paper ID : 1229-ICNS
Azam Khorasani *1, Maziar Marandi2, Azam Iraji Zad3, Nima Taghavinia4
1Physics Department, Faculty of Science, Arak University,
2Physics Department, Faculty of Science, Arak University
3Institute for Nanoscience and Nanotechnology, Sharif University of Technology Department of Physics, Sharif University of Technology
4Department of Physics, Sharif university of technology, Tehran, Iran
In this research, the effects of inorganic Copper Iodide (CuI) hole transport layer (HTL) is investigated on the perovskite solar cells (PSCs). In addition, mixed halides perovskite (Cs0.05(MA0.17FA0.83)0.95Pb(I0.83Br0.17)3) was applied as a light-absorbing layer in the conventional structure of PSCs. Copper Iodide with high mobility 0.5–2 cm2/Vs and large bandgap energy 3.1eV is one of the best alternative of organic hole transport materials in the solar cells. The p-type thin layer of CuI was deposited on the perovskite layer by spin coating technique with 0.1 M CuI solution in chlorobenzene. CuI-based PSCs with nearly simple deposition process exhibited excellent current density and proper efficiency in compared with HTL free PSCs. The maximum power conversion efficiency (PCE) of 8.12% was obtained for the PSC with CuI hole transport layer, which is the highest efficiency reported so far for CuI-based dopant-free PSCs. In addition to PCE, current density (Jsc) was increased more than 119% compared to the PSCs with HTL free.
CuI, Perovskite, Hole transport layer, Solar cells
Status : Abstract Accepted (Poster Presentation)