Harnessing plasmon-exciton energy exchange for flexible organic solar cells with efficiency of 19.5%

Jing- De Chen, Hao Ren, Feng-Ming Xie, Jia-Liang Zhang, Hao-Ze Li, Abdul Sameeu Ibupoto, Ye-Fang Zhang, Yan-Qing Li () and Jian-Xin Tang ()
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Jing- De Chen: Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa
Hao Ren: Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa
Feng-Ming Xie: Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University
Jia-Liang Zhang: Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University
Hao-Ze Li: School of Physics and Electronic Science, East China Normal University
Abdul Sameeu Ibupoto: Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University
Ye-Fang Zhang: Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University
Yan-Qing Li: School of Physics and Electronic Science, East China Normal University
Jian-Xin Tang: Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa

Nature Communications, 2025, vol. 16, issue 1, 1-10

Abstract: Abstract The plasmonic effects have unlocked remarkable advancements in modern optoelectronics, enabling enhanced light-matter interactions for applications ranging from sensing to photovoltaics. However, the nonradiative damping of plasmonic effects causes parasitic absorption which limits the light-utilization efficiency of optoelectronics, particularly for photovoltaic cells. Herein, we propose a plasmon energy recycling scheme consisting of green fluorophore (BCzBN) and nickel oxide to compensate for the plasmon energy loss. The plasmons trapped in silver nanowire (AgNW) electrodes are coupled to green emission through plasmon-exciton energy exchange. Backward electron and energy transfer are inhibited due to the spectral mismatch and energy level offset. The optically enhanced flexible AgNW electrode exhibits an improvement of 10.74% in transmittance, yielding flexible organic solar cells with an efficiency of 19.51% and a certified value of 18.69%. This innovative strategy provides a pathway for overcoming plasmon energy losses in plasmonic optoelectronics, opening horizons for highly efficient flexible photovoltaics and plasmonic devices.

Date: 2025
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DOI: 10.1038/s41467-025-59286-0

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