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https://hdl.handle.net/11499/51236
Title: | Influence of an Amide-Functionalized Monomeric Unit on the Morphology and Electronic Properties of Non-Fullerene Polymer Solar Cells | Authors: | Shome, Sanchari Li Yifan Shin, Hee Jeong Chen, Shuao Lim, Dae-Hee Kwon, Soon-Ki Choi, Hyosung |
Keywords: | N N-Dimethylthiophene-3-Carboxamide Dipolar Interaction Non-Fullerene Acceptor Polymer Solar Cells |
Publisher: | Korean Soc Precision Eng | Abstract: | A straightforward competent strategy to attune the solid-state morphology, opto-electronic and photovoltaic properties of conjugated co-polymers has been studied by inserting different percentages of N,N-dimethylthiophene-3-carboxamide (TDM) monomeric units. The TDM percentage was varied from 20 to 100%, resulting in widening of the energy band gap. Fabrication of solar cells was performed with ITIC-4F as an electron acceptor to accomplish power conversion efficiencies (PCEs) of 7.8% for P4 (minimum TDM) and 0.85% for P1 (maximum TDM) under a thermal tempering process. A drastic drop in the PCE was noted with increasing percentage of TDM which agrees well with the optical, electronic, and morphological studies. Morphological analysis revealed high crystallinity for P4:ITIC-4F blend having minimum percentage of TDM units compared to its counterparts of higher TDM percentages. A sharp increase in pi-pi stacking is seen with reduced percentage of TDM units, leading to d spacing of 3.6 angstrom. Detailed investigations regarding the charge carrier transport in relation to the pi-pi stacking of the polymeric film are well implemented in this work. | Description: | Kang, Dong-Won/0000-0002-4818-8108; Ak, Metin/0000-0002-0000-4613 | URI: | https://doi.org/10.1007/s40684-021-00374-z | ISSN: | 2288-6206 2198-0810 |
Appears in Collections: | Fen-Edebiyat Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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