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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