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Park S, Kim Y, Choi C, Ahn H, Park T, Lee SH, Jang YH, Lee BH. Effect of Bulky Atom Substitution on Backbone Coplanarity and Electrical Properties of Cyclopentadithiophene-Based Semiconducting Polymers. Macromol Rapid Commun 2021; 43:e2100709. [PMID: 34792255 DOI: 10.1002/marc.202100709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 10/28/2021] [Indexed: 11/10/2022]
Abstract
The effect of atomic substitution on the optoelectronic properties of a coplanar donor-acceptor (D-A) semiconducting polymer (SPs), prepared using cyclopentadithiophene (CDT) and 2,1,3-benzothiadiazole (BT) moieties, is investigated. By substituting a carbon atom in the BT unit with CF or C-Cl, two random D-A SPs are prepared, and their optoelectronic properties are thoroughly investigated. Density functional theory calculations demonstrate that the fluorinated polymer has a slightly smaller dihedral angle (ϴ = 0.6°) than the pristine polymer (ϴ = 1.9°) in its lowest-energy conformation, implying efficient charge transport through the coplanar backbone of the fluorinated polymer. However, the chlorinated polymer shows the lowest energy at a relatively larger dihedral angle (ϴ = 139°) due to the steric hindrance induced by bulky chlorine atoms in the backbone, thereby leading to thin-film morphology, which is unfavorable for charge transport. Consequently, the fluorinated polymer yields the highest field-effect mobility (μ) of 0.57 cm2 V-1 s-1 , slightly higher than that of the pristine polymer (μ = 0.33 cm2 V-1 s-1 ), and the extended device lifetime of organic field-effect transistors over 12 d without any encapsulation layers. The results of this study provide design guidelines for air-stable D-A SPs.
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Affiliation(s)
- Sohee Park
- Department of Chemical Engineering and Materials Science, Ewha Womans University, Seoul, 03760, Republic of Korea.,Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Yejin Kim
- Department of Chemical Engineering and Materials Science, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Changwon Choi
- Department of Energy Science and Engineering, DGIST, Daegu, 42988, Republic of Korea
| | - Hyungju Ahn
- Pohang Accelerator Laboratory, POESTECH, Pohang, 37673, Republic of Korea
| | - Taemin Park
- Department of Chemistry, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - Seoung Ho Lee
- Department of Chemistry, Daegu University, Gyeongsan, 38453, Republic of Korea
| | - Yun Hee Jang
- Department of Energy Science and Engineering, DGIST, Daegu, 42988, Republic of Korea
| | - Byoung Hoon Lee
- Department of Chemical Engineering and Materials Science, Ewha Womans University, Seoul, 03760, Republic of Korea.,Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
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2
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Taouali W, Casida ME, Znaidia S, Alimi K. Rational design of (D-A) copolymers towards high efficiency organic solar cells: DFT and TD-DFT study. J Mol Graph Model 2019; 89:139-146. [DOI: 10.1016/j.jmgm.2019.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 02/12/2019] [Accepted: 03/11/2019] [Indexed: 11/26/2022]
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3
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de Izarra A, Park S, Lee J, Lansac Y, Jang YH. Ionic Liquid Designed for PEDOT:PSS Conductivity Enhancement. J Am Chem Soc 2018; 140:5375-5384. [DOI: 10.1021/jacs.7b10306] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ambroise de Izarra
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
- GREMAN, UMR 7347, CNRS, Université de Tours, 37200 Tours, France
| | - Seongjin Park
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
| | - Jinhee Lee
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
| | - Yves Lansac
- GREMAN, UMR 7347, CNRS, Université de Tours, 37200 Tours, France
- Laboratoire de Physique des Solides, CNRS, Université Paris-Sud, 91405 Orsay, France
| | - Yun Hee Jang
- Department of Energy Science and Engineering, DGIST, Daegu 42988, Korea
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Choi YK, Lee D, Lee SY, Shin TJ, Park J, Ahn DJ. Conjugated Polymer Nanoparticles in Aqueous Media by Assembly with Phospholipids via Dense Alkyl Chain Packing. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01367] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | - Dabin Lee
- School
of Chemical Engineering and Materials Science, Institute of Energy
Converting Soft Materials, Chung-Ang University, Seoul 06974, Republic of Korea
| | | | - Tae Joo Shin
- UNIST Central Research Facilities & School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Juhyun Park
- School
of Chemical Engineering and Materials Science, Institute of Energy
Converting Soft Materials, Chung-Ang University, Seoul 06974, Republic of Korea
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Gim Y, Kim D, Kyeong M, Byun S, Park Y, Kwon S, Kim H, Hong S, Lansac Y, Jang YH. D–A–D-type narrow-bandgap small-molecule photovoltaic donors: pre-synthesis virtual screening using density functional theory. Phys Chem Chem Phys 2016; 18:15054-9. [DOI: 10.1039/c5cp07536j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new series of D–A–D-type small-molecule photovoltaic donors are designed and screened before synthesis using time-dependent density functional theory calculations.
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Affiliation(s)
- Yeongrok Gim
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology
- Gwangju 61005
- Korea
| | - Daekyeom Kim
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology
- Gwangju 61005
- Korea
| | - Minkyu Kyeong
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology
- Gwangju 61005
- Korea
| | - Seunghwan Byun
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology
- Gwangju 61005
- Korea
| | - Yuri Park
- Research Institute for Solar and Sustainable Energies
- Gwangju Institute of Science and Technology
- Gwangju 61005
- Korea
| | - Sooncheol Kwon
- Research Institute for Solar and Sustainable Energies
- Gwangju Institute of Science and Technology
- Gwangju 61005
- Korea
| | - Heejoo Kim
- Research Institute for Solar and Sustainable Energies
- Gwangju Institute of Science and Technology
- Gwangju 61005
- Korea
| | - Sukwon Hong
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology
- Gwangju 61005
- Korea
- Research Institute for Solar and Sustainable Energies
| | - Yves Lansac
- GREMAN
- UMR 7347
- Université François Rabelais
- 37200 Tours
- France
| | - Yun Hee Jang
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology
- Gwangju 61005
- Korea
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