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The performance of a lead-free Cs2TiBr6 based solar cell with diverse charge transport material and back metal contacts
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机译：The performance of a lead-free Cs2TiBr6 based solar cell with diverse charge transport material and back metal contacts
Abstract Perovskite solar cells (PSCs) have gained massive attention due to their ease of fabrication, excellent efficiency, outstanding ambipolar free carrier movement, and the broad range of solar spectrum absorption. Due to toxicity and stability issues, PSCs based on lead-free absorber layers have been the subject of numerous studies, especially for industrial production. Simulation experiments were conducted to investigate a nontoxic and inorganic material, using Cs2TiBr6 as the perovskite layer for this purpose. Later on, the significance of various organic and inorganic materials for the electron transporting layer (ETL) and hole transport layer (HTL) was examined and investigated to enhance the devices’ performance. Compared to other alternatives, the simulation results show that PSCs based on PCBM as ETL and Cu2O as HTL offer a power conversion efficiency of 12.04%. This demonstrates that it is conceivable to experimentally obtain high-performance lead-free perovskite solar cells by improving the device characteristics.
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