@inproceedings{762fbb861aa449be997bf5e254b17358,
title = "Synthesis and optical properties of benzoselenadiazole based non-fullerene acceptors",
abstract = "A novel non-fullerene small molecule acceptor, designated as SeCBO, was devised and synthesized. It is founded on benzoselenadiazole and features an absorption edge that extends into the near - infrared (NIR) region, presenting a narrow band - gap characteristic. The incorporation of multi-fused benzoselenadiazole moieties combined with IC-Br endows SeCBO with a narrow optical bandgap of 1.42 eV. This phenomenon originates from strengthened π−π stacking facilitated by the covalent effect between thiophene and benzoselenadiazole. Consequently, SeCBO shows an extensive absorption spectrum from 400 to1000 nm. Additionally, more robust intermolecular charge transfer (ICT) characteristics are observed between the SeCBO central unit and the IC-Br terminal. The purity and molecular structure of the acceptor material, SeCBO, characterized by 1H NMR. Although SeCBO exhibits poor solubility in certain organic solvents, it maintains strong and broad absorption characteristics along with a narrow bandgap. This property allows SeCBO to be paired with a wider variety of polymer donors for the development of high - efficiency organic solar cells.",
keywords = "Non-fullerene acceptors, Organic solar cell, Selenium substitution",
author = "Tianchang Zhao and Wang, \{Jin Liang\}",
note = "Publisher Copyright: {\textcopyright} 2025 SPIE.; International Conference on Optoelectronic Information and Functional Materials, OIFM 2025 ; Conference date: 18-04-2025 Through 20-04-2025",
year = "2025",
month = aug,
day = "19",
doi = "10.1117/12.3072728",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Shahid Hussain and Jupeng Ding",
booktitle = "International Conference on Optoelectronic Information and Functional Materials, OIFM 2025",
address = "United States",
}