Toxicity as well as chemical instability issues of halide perovskites based on organic–inorganic lead-containing materials still remains the main drawbacks for perovskite solar cells (PSCs). Herein, we discuss the preparation of copper (Cu)-based hybrid materials, where we replace lead (Pb) with non-toxic Cu metal for lead free perovskite solar cells; investigate of its potential towards solar cells applications based on experimental and theoretical studies.
The formation of (CH3NH3)2CuX4 [(CH3NH3)2CuCl4, (CH3NH3)2CuCl2I2, and (CH3NH3)2CuCl2Br2] were discussed in details. Furthermore, founding chlorine (Cl-) in the structure is critical for the stabilization of the formed compounds. Cu-based perovskite-like materials illustrated attractive absorbance features extended to the near-infrared, with appropriate band gaps. Green photoluminescence of these materials obtained due to Cu+ ions. The power conversion efficiency (PCE) measured experimentally and estimated theoretically for different architectures of solar cell devices.
Elseman, A.M., Shalan, A.E., Sajid, S., Rashad, M.M., Hassan, A.M. and Li, M., 2018. Copper Substituted Lead Perovskites Materials Constructed with Different Halides for Working (CH3NH3) 2CuX4 Based Perovskite Solar Cells from Experimental and Theoretical View. ACS applied materials & interfaces.
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