Please use this identifier to cite or link to this item:
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, S. Yifan, L. Shin, H.J. Chen, S. Lim, D.-H. Kwon, S.-K. Ko, S.-J. Kang, Dong-Won Lee, Bo Ram Kim, Yun-Hi Choi, Hyosung Ak, Metin |
Keywords: | Dipolar interaction N,N-dimethylthiophene-3-carboxamide Non-fullerene acceptor Polymer solar cells Amides Carrier mobility Carrier transport Conjugated polymers Crystallinity Electronic properties Energy gap Morphology Polymer solar cells Carboxamides Dipolar interaction Functionalized Monomeric units N,N-dimethylthiophene-3-carboxamide Non-fullerene acceptor Optoelectronics property Power conversion efficiencies Solid-state morphology π-π- stacking Fullerenes |
Publisher: | Korean Society for Precision Engineeing | 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 π-π stacking is seen with reduced percentage of TDM units, leading to d spacing of ̴ 3.6 Å. Detailed investigations regarding the charge carrier transport in relation to the π-π stacking of the polymeric film are well implemented in this work. © 2021, Korean Society for Precision Engineering. | URI: | https://doi.org/10.1007/s40684-021-00374-z https://hdl.handle.net/11499/51236 |
ISSN: | 2288-6206 |
Appears in Collections: | Fen-Edebiyat Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection |
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