Passivator materials based on the benzothiazole-sulfonamide hybrid: Synthesis, optical, electrochemical properties, and molecular modeling for perovskite solar cells
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引用次数: 0
Abstract
This study presents the synthesis of N-(4-(N-carbamimidoylsulfamoyl)phenyl)benzo[d]thiazole-2-carbohydrazonoyl cyanide (NCSBC), a novel passivator material for perovskite solar cells (PSCs). The structure was confirmed by FTIR, ¹H NMR, and ¹³C NMR, while Hall-effect measurements revealed a hole mobility of 1.15 × 10³ cm²/Vs. UV–Vis analysis showed absorption peaks at 295 and 422 nm, corresponding to transitions related to azo groups and aromatic rings in NCSBC. The compound exhibited an optical energy gap of 2.47 eV, consistent with DFT-based molecular modeling. Thermal stability and electrochemical properties further validated its suitability for photovoltaic applications. Incorporating NCSBC into PSCs with an FTO/c-TiO2/MAPbI3/NCSBC/spiroMeOTAD/Ag device configuration resulted in a power conversion efficiency (PCE) of 16.21 %, compared to 14.47 % for the control. This work highlights NCSBC's potential for cost-effective, high-efficiency defect passivation in PSCs.
期刊介绍:
Materials Research Bulletin is an international journal reporting high-impact research on processing-structure-property relationships in functional materials and nanomaterials with interesting electronic, magnetic, optical, thermal, mechanical or catalytic properties. Papers purely on thermodynamics or theoretical calculations (e.g., density functional theory) do not fall within the scope of the journal unless they also demonstrate a clear link to physical properties. Topics covered include functional materials (e.g., dielectrics, pyroelectrics, piezoelectrics, ferroelectrics, relaxors, thermoelectrics, etc.); electrochemistry and solid-state ionics (e.g., photovoltaics, batteries, sensors, and fuel cells); nanomaterials, graphene, and nanocomposites; luminescence and photocatalysis; crystal-structure and defect-structure analysis; novel electronics; non-crystalline solids; flexible electronics; protein-material interactions; and polymeric ion-exchange membranes.