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A Non‐Fullerene Small Molecule as Efficient Electron Acceptor in Organic Bulk Heterojunction Solar Cells

Yan Zhou, Lin Ding, Ke Shi, Ya‐Zhong Dai, Na Ai, Jian Wang, Jian Pei

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Abstract

A novel n-type small molecule FFI-1 was synthesized as the electron acceptor to replace PCBM in solution-processed organic BHJ solar cells. Its LUMO level (around -3.5 eV) both matches the work function of the cathode and increases V(OC) of the devices, making it a promising acceptor candidate. With P3HT: FFI-1 (1:2 w/w) as active layer and LiF/Al as the cathode, the best power conversion efficiency (PCE) reaches 1.86%.

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What this paper is about

A novel n-type small molecule FFI-1 was synthesized as the electron acceptor to replace PCBM in solution-processed organic BHJ solar cells. Its LUMO level (around -3.5 eV) both matches the work function of the cathode and increases V(OC) of the devices, making it a promising acceptor candidate. With P3HT: FFI-1 (1:2 w/w) as active layer and LiF/Al as the cathode, the best power conversion efficiency (PCE) reaches 1.86%.

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OpenAlex reports 167 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A novel n-type small molecule FFI-1 was synthesized as the electron acceptor to replace PCBM in solution-processed organic BHJ solar cells. Its LUMO level (around -3.5 eV) both matches the work function of the cathode and increases V(OC) of the devices, making it a promising acceptor candidate. With P3HT: FFI-1 (1:2 w/w) as active layer and LiF/Al as the cathode, the best power conversion efficiency (PCE) reaches 1.86%.

Key concepts: Materials science, Organic solar cell, Fullerene, Acceptor, Cathode, Electron acceptor, Work function, HOMO/LUMO

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