2026-05-08T05:12:11Z https://www.eurjchem.com/index.php/eurjchem/oai

oai:ojs.www.eurjchem.com:article/2627 2025-06-30T07:22:17Z eurjchem:ART driver

Enhanced photoconversion efficiency in organic polymer solar cells: Synthesis, structural analysis and computational modelling of 4,8-dichlorobenzo[1,2-b]difuran-2,6-dicarboxylic acid-based composite Ananthavalli, Raman Karpagam, Jagadeesan Ramalingam, Singaravelu Aarthi, Ramadoss LWFE SWFE Fill factor Perovskite 4,8-Dichlorobenzo[1,2-b]difuran-2,6-dicarboxylic acid Improving the photoconversion efficiency (PCE) of organic polymer-based solar cells (SCs) is crucial to their competitiveness with conventional SCs. This study presents a novel approach to improve PCE of an organic composite solar cell incorporating 4,8-dichlorobenzo[1,2-b]difuran-2,6-dicarboxylic acid. The molecular composite was designed based on the photoactive donor-π-acceptor (D-π-A) architecture and computationally modeled to optimize its efficiency. The synthesized material was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and spectral analysis, confirming the formation of a perovskite lattice. Photovoltaic performance was evaluated using simulated device measurements, which produced a fill factor (FF) of 0.708, a short-circuit current density (JSC) of 12.8 mA/cm2, an open-circuit voltage (VOC) of 1.22 V, and an overall PCE of 12.78%. The active exciton diffusion path length was measured at < 9 Å, with a direct band gap of 2.05 eV. The stabilized Urbach energy of the material ranged from 110 to 220 meV. Furthermore, the active single-layer film was interfaced with both a small work function electrode (SWFE) and a long work function electrode (LWFE). The material exhibited high polarizability (αtot = 483.34×10-33 esu, Δα = 332.68×10-33 esu), indicating a strong potential for efficient photoconversion. This study demonstrates the feasibility of using 4,8-dichlorobenzo [1,2-b] difuran-2,6-dicarboxylic acid-based composite for high-performance organic solar cells, offering a promising alternative to conventional SCs. Atlanta Publishing House LLC 2025-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.eurjchem.com/index.php/eurjchem/article/view/2627 10.5155/eurjchem.16.2.178-200.2627 European Journal of Chemistry; Vol. 16 No. 2 (2025): June 2025; 178-200 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/2627/2929 Copyright (c) 2025 Raman Ananthavalli, Jagadeesan Karpagam, Singaravelu Ramalingam, Ramadoss Aarthi https://creativecommons.org/licenses/by-nc/4.0