سنتز و مشخصه يابي نيمه هاديهاي انتقال الكترون براي سيستم نوري پروسكايتي

Synthesis an‎d Characterization of Electron Transfer Semiconductors for Perovskite Optical System

شيمي آلي و پليمر

Inverted perovskite solar cells, due to their simple architecture, low-temperature processability, an‎d compatibility with flexible substrates, represent a cost-effective an‎d sustainable option for renewable energy generation. The design of electron-transporting layers an‎d the synthesis of novel compounds play a pivotal role in enhancing their efficiency an‎d performance. In this study, a new organic compound, namely2,2ʹ,7,7ʹ-tetrakis(4-(1-phenyl-1H-benzo[d]imidazol-2-yl) phenyl)-9,9ʹ spiro bi[thioxanthene], was synthesized an‎d characterized, an‎d subsequently investigated as an electron-transporting layer in inverted perovskite solar cells. The synthetic route of this compound involved the introduction of a functionalized substituent, prepared via a four-step procedure, based on 1,2-diphenyl-1H-benzo[d]imidazole, onto the central core of 9,9ʹ-spirobi[thioxanthene]. Preliminary experimental results demonstrated a power conversion efficiency of 16.48%, an open-circuit voltage of 1.23 V, a short-circuit current density of 18.16 mA cm⁻², an‎d a fill factor of 73.78%.

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