Impact of Fluorine-Induced Effects on Co-Sensitization Systems in Dye-Sensitized Solar Cells

IF 2.9 3区化学 Q3 CHEMISTRY, PHYSICAL

Physical Chemistry Chemical Physics Pub Date : 2025-01-30 DOI:10.1039/d4cp04789c

Miao Jiang, Rui Wang, Gongchen Xu, Shangguan Qing, Haoxin Wang, Ming Cheng, Shiguo Sun, Li Zhang, Xichuan Yang

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引用次数: 0

Abstract

Effective molecular engineering strategies are crucial for developing photosensitizers. In this study, we designed three triazatruxene (TAT)-based donor−π-bridge−acceptor (D−π−A) photosensitizers, denoted JM202, JM203, and JM204. JM203 and JM204, which have fluorine atoms at different positions, were assembled into single-dye-adsorbed and cosensitized dye-sensitized solar cells with JM202. Then, the effect of fluorine substitution on the photophysical properties and cosensitization was investigated. When the fluorine atom was near the electron acceptor (JM204), the molar extinction coefficient of the dye was enhanced, and charge transport was improved. JM204 also facilitated the adsorptionof JM202, leading to higher dye loading and significantly enhanced short-circuit photocurrent density. Further, the co-adsorption of JM202 reduced electronic recombination, resulting in a higher open-circuit voltage. Consequently, the JM202-JM204 cosensitized device achieved an optimal photoelectric conversion efficiency of 11.7%. The results of this study offers a new perspective for developing cosensitized dye-sensitized solar cells.

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来源期刊

Physical Chemistry Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

5.50

自引率

9.10%

发文量

2675

审稿时长

2.0 months

期刊介绍： Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.