Study on synthesis and photophysical properties of a small molecule donor material containing alkyl selenophenyl side chains

Qi Li; Jinliang Wang

doi:10.1117/12.3015206

6 February 2024 Study on synthesis and photophysical properties of a small molecule donor material containing alkyl selenophenyl side chains

Qi Li, Jinliang Wang

Author Affiliations +

Proceedings Volume 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023); 129790L (2024) https://doi.org/10.1117/12.3015206
Event: 9th International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 2023, Guilin, China

Abstract

The efficiency of Organic Solar Cells (OSCs) based on polymer donors and Non-Fullerene Acceptors (NFAs) is close to 20%. However, compared with polymer donors, Small Molecule Donors (SMDs) have the advantages of molecular structure determination and easy purification. Through replacing the sulfur atom on the solubilized side chain of small molecule donor of B1 with the selenium atom, the molecule BSeEH has been designed and synthesized. Compared with B1, the crystallinity of BSeEH was significantly enhanced, and the intermolecular interaction force was improved. And the absorption spectrum of the BSeEH undergoes a blue shift, indicating that the molecular band gap has been widened. The variation in absorption spectra indicates that BSeEH has the potential to become an efficient small molecule donor material.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Qi Li and Jinliang Wang "Study on synthesis and photophysical properties of a small molecule donor material containing alkyl selenophenyl side chains", Proc. SPIE 12979, Ninth International Conference on Energy Materials and Electrical Engineering (ICEMEE 2023), 129790L (6 February 2024); https://doi.org/10.1117/12.3015206

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