What question did this study set out to answer?

This research aims to improve the efficiency and stability of carbon-based perovskite solar cells using multifunctional dicarboxylic acids.

May 10, 2026

Multifunctional Dicarboxylic Acid Molecules Enable 19.61% Efficiency in Carbon-Based Printable Mesoscopic Perovskite Solar Cells

Key Points

This research aims to improve the efficiency and stability of carbon-based perovskite solar cells using multifunctional dicarboxylic acids.
Utilized FDCA to interact with perovskite for better crystallization and film quality.
Assessed power conversion efficiency changes in modified solar cells.
Evaluated long-term stability of devices under ambient conditions.
Power conversion efficiency increased from 18.17% to 19.61% with FDCA modification.
Unencapsulated devices retained over 90% of initial PCE after 100 days in ambient conditions.

Abstract

and thereby effectively suppressing nonradiative recombination. Meanwhile, FDCA formed strong interactions with the perovskite, effectively moderating its rapid crystallization and thereby promoting the dense filling and high-quality growth of the perovskite film in the triple-layer mesoscopic structure. Benefiting from the above synergistic effects of FDCA, the power conversion efficiency (PCE) of FDCA-modified p-MPSCs increased significantly from 18.17% to 19.61%. Furthermore, unencapsulated FDCA-modified devices retained over 90% of their initial PCE after being stored for 100 days in ambient air (25 ± 5 °C, 40 ± 5% RH), demonstrating excellent long-term stability.

Multifunctional Dicarboxylic Acid Molecules Enable 19.61% Efficiency in Carbon-Based Printable Mesoscopic Perovskite Solar Cells

Key Points

Abstract

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