Article
Polymer Science
Ziyi Xie, Qingyun Wei, Tong Shan, Xiaoyang Zheng, Yi Zhang, Hongliang Zhong
Summary: Polythiophene derivatives, P3SHT and PTST, synthesized by KCTP show stronger absorption and downshifted energy levels compared to P3HT, due to the role of sulfur as a pi-acceptor. PTST exhibits the strongest crystallinity among the polymers and hierarchically pre-aggregates in solution, leading to a superior PCE in OSCs.
Article
Chemistry, Physical
Honglin Tang, Junhua Ning, Ke Wang, Heng Liu, Xinhui Lu, Songting Tan, Meihua Huang, Bin Zhao
Summary: Two polymer donors, PSe-BO and PSe-HD, were designed and synthesized with DTBSe as electron-deficient units, and the effects of alkylthiophene side chains on their photophysical properties and photovoltaic performance were studied. The results showed that PSe-HD exhibited better absorption spectrum and molecular orientation compared to PSe-BO, resulting in higher charge mobility and improved photovoltaic parameters. Consequently, the polymer organic solar cell based on PSe-HD achieved a higher power conversion efficiency of 14.85%. This study provides an efficient strategy for designing polymer donors through the introduction of DTBSe and side-chain engineering.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Engineering, Chemical
Faizal Soyekwo, Changkun Liu, Yunxia Hu
Summary: This study focuses on the design and construction of crosslinked block copolystyrene membranes with flexible side chains for high-performance molecular separation in organic media. These membranes exhibit outstanding stability and permeance, achieving efficient molecular separation and molecular-level selectivity, which is attractive for applications in the chemical and pharmaceutical industry.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Xiang Gao, Kuibao Yu, Yanjiao Zhao, Tao Zhang, Jing Wen, Zifeng Liu, Zhihao Liu, Guofeng Ye, Jianhong Gao, Ziyi Ge, Zhitian Liu
Summary: The rational design and synthesis of well-matched donor and acceptor materials are crucial for achieving high-performance small-molecule organic solar cells (SMOSCs). In this study, the photovoltaic performance of SMOSCs was significantly improved by subtle structural modification of the donor materials.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Qilin Wang, Yuehui Zhai, Danming Chao, Zheng Chen, Zhenhua Jiang
Summary: Functional polymers with highly hydrophilic, highly polar, highly flexible, and biocompatible oligoethylene glycol side chains were designed and prepared to improve processability. The polymer PBDT-IID4, with longer oligoethylene glycol side chains, showed good solubility in both the halogen solvent chlorobenzene and the green halogen-free solvent methyltetrahydrofuran (Me-THF). The green solvent Me-THF can also be used for the preparation of electrochromic active layers.
Article
Chemistry, Applied
Xionghui Wu, Xin Wang, Chenze Qi, Yong Gao
Summary: In this study, nonaqueous macroemulsions stabilized by amphiphilic random copolymers were synthesized. The critical micelle concentrations of the copolymers decreased with the increase of MPDMA monomer unit. Emulsions were prepared using these copolymers as macromolecular emulsifiers, and the emulsifying performances of PPOEGMA-ran-PMPDMA copolymers were better compared to the diblock copolymer counterparts.
REACTIVE & FUNCTIONAL POLYMERS
(2023)
Article
Polymer Science
Hao-Chi Yen, Yan-Cheng Lin, Wen-Chang Chen
Summary: This study explores a new approach to control the carrier mobility and stretchability properties of polymers by tuning the hydrophilicity and asymmetric side-chain combination. Different side chains, including carbosilane, oligoether, and semifluorinated side chains, provide different molecular stacking patterns and orientations, affecting the performance and stretchability of the resulting polymers. The experimental results demonstrate that the combination and hydrophilicity of side chains play a crucial role in developing semiconducting polymers with high performance and intrinsic stretchability.
Article
Chemistry, Physical
Linyong Xu, Wuxi Tao, Ming Guan, Xin Yang, Meihua Huang, Huajie Chen, Jianqi Zhang, Bin Zhao, Songting Tan
Summary: Two terpolymers with different side chains were designed and synthesized, with the addition of s-tetrazine units for improved efficiency in polymer solar cells. Side-chain engineering was found to have a significant impact on charge transport and exciton dissociation.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Teng Wang, Jiawen Zhang, Ying Cai, Lang Xu, Lingmin Yi
Summary: This study demonstrates that molecular-scale compositional heterogeneities can reduce the nonspecific interaction between proteins and surfaces, leading to improved resistance against surface contamination. The balance between hydrophilic and hydrophobic segments on the surface of the copolymer coatings provides better synergistic effects, resulting in excellent resistance to various proteins.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Bojun Zhou, Liang Wang, Yang Liu, Chuanhang Guo, Donghui Li, Jinlong Cai, Yiwei Fu, Chen Chen, Dan Liu, Yinhua Zhou, Wei Li, Tao Wang
Summary: This study investigates the degradation of a series of Y-family NFAs with varying side-chains under multiple stresses. The results show that NFAs with shorter side chains exhibit higher stability and hinder the formation of large phase-separated NFA domains, leading to improved operational stability of organic solar cells.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yun Li, Jiali Song, Yicai Dong, Hui Jin, Jingming Xin, Shijie Wang, Yunhao Ca, Lang Jiang, Wei Ma, Zheng Tang, Yanming Sun
Summary: This study successfully achieved efficient all-polymer solar cells by designing and synthesizing a series of polymer acceptors. Through the investigation of the structure-property relationship of polymer acceptors, new insights into polymer acceptors were provided, and a feasible approach to develop efficient conjugated polymer acceptors was paved.
ADVANCED MATERIALS
(2022)
Review
Polymer Science
Naisheng Jiang, Donghui Zhang
Summary: Polypeptoids, a class of synthetic peptidomimetic polymers, have the potential for biotechnological applications and can self-assemble into various nanostructures with tailorable morphologies and functionalities.
Article
Chemistry, Physical
Hanyang Sun, Zirun Wang, Haoran Wang, Zepeng Zhao, Fang Guo
Summary: The copolymerization of ethylene with styrene derivatives or isoprene and subsequent hydrosilylation reaction resulted in the synthesis of ethylene-styrene or ethylene-isoprene multiblock copolymers bearing piperidinium groups. Compared to the ethylene-isoprene membrane, the ethylene-styrene membranes displayed improved mechanical properties, conductivity, and stability due to the attachment of piperidinium groups to bulky and rigid phenyl structures. Furthermore, the introduction of an alkoxy cross-linked structure further enhanced the desired properties of the ethylene-styrene membranes.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yingjian Yu, Ning Wang, Bin Meng, Jun Liu, Lixiang Wang
Summary: This study investigates the impact of alkyl side chains of polymer donors on the photovoltaic performance of all-polymer solar cells, with CD-C16 showing the strongest aggregation behavior and crystallinity, leading to the highest power conversion efficiency.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Physical
Tian Zhang, Haopeng Chen, Chuanfu Li, Kun Lu, Liting Zhang, Ahmad Shokrieh, Jianqi Zhang, Guanghao Lu, Shengbin Lei, Zhixiang Wei
Summary: The introduction of trifluoro alkyl side chains to the pyrrole unit of the BTP core can optimize the morphology of NFA-based OSCs and improve their performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Review
Chemistry, Multidisciplinary
Zhenhua Wang, Xiu Wang, Yasushi Nishihara
CHEMISTRY-AN ASIAN JOURNAL
(2020)
Article
Chemistry, Organic
Liyan Fu, Qiang Chen, Zhenhua Wang, Yasushi Nishihara
Article
Biochemistry & Molecular Biology
Takumi Ishida, Yuta Sawanaka, Ryota Toyama, Zhenfei Ji, Hiroki Mori, Yasushi Nishihara
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2020)
Article
Chemistry, Organic
Xiu Wang, Zhenhua Wang, Takumi Ishida, Yasushi Nishihara
JOURNAL OF ORGANIC CHEMISTRY
(2020)
Article
Chemistry, Organic
Liyan Fu, Qiang Chen, Yasushi Nishihara
Article
Biochemistry & Molecular Biology
Zhenfei Ji, Zeliang Cheng, Hiroki Mori, Yasushi Nishihara
Review
Polymer Science
Hiroki Mori
Summary: Choosing appropriate building blocks and developing new donor and acceptor units are crucial for high-performance D-A semiconducting polymers. Introducing pi-extended aromatic frameworks helps facilitate dense pi-pi stacking structures. Novel pi-extended heteropolycyclic aromatic frameworks have great potential as building units for high-performance organic electronic devices.
Article
Chemistry, Physical
Masayuki Wakioka, Natsumi Yamashita, Hiroki Mori, Richard Murdey, Takafumi Shimoaka, Nobutaka Shioya, Atsushi Wakamiya, Yasushi Nishihara, Takeshi Hasegawa, Fumiyuki Ozawa
Summary: The cis-to-trans isomerization of poly(thienylenevinylene) has been found to be a feasible method for the fabrication of semiconducting trans-P1 thin films. By thermally annealing the cis-P1 isomer, films with comparable hole mobility to those prepared from the trans-isomer can be obtained. The use of the more soluble cis-isomer allows for the replacement of toxic halogenated solvents with environmentally friendly 2-MeTHF, making solid-state cis-to-trans isomerization an attractive option for sustainable and printable electronics development.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Hiroki Mori, Yuki Yamada, Yukiya Minagawa, Natsuki Hasegawa, Yasushi Nishihara
Summary: In this study, donor-acceptor (D-A) polymers with anthra[1,2-c:5,6-c']-bis([1,2,5]thiadiazole) (ATz)-based acceptor units bearing acyloxy groups were synthesized. The presence of the acyloxy groups in the synthesized polymers resulted in higher HOMO energy levels compared to previously reported alkoxy-substituted polymers. However, the unsuitable edge-on orientation and large phase separation in blended films led to lower power conversion efficiency in solar cells using the polymers with acyloxy groups.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2022)
Article
Nanoscience & Nanotechnology
Masato Mitani, Shohei Kumagai, Craig P. Yu, Ayako Oi, Masakazu Yamagishi, Shuhei Nishinaga, Hiroki Mori, Yasushi Nishihara, Daisuke Hashizume, Tadanori Kurosawa, Hiroyuki Ishii, Nobuhiko Kobayashi, Jun Takeya, Toshihiro Okamoto
Summary: This study reported a new zigzag-shaped sulfur-bridged pi-electron core and its derivative, investigated their molecular design strategy and their impact on organic semiconductor performance through single-crystal structural analysis and band calculation.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Polymer Science
Hiroki Mori, Yuya Asanuma, Ryuchi Hosogi, Yasushi Nishihara
Summary: A novel electron acceptor unit, FOBTzE, was designed and synthesized to improve the aggregation behavior and molecular orientation of polymer PFE4T. The introduction of alkoxy side chains and FOBTzE resulted in higher HOMO energy level and changed molecular orientation, allowing for the formation of a uniform blended film with PC61BM and enhanced carrier transport. However, the limited solubility of PFOE4T led to phase separation and restricted the short-circuit current density and power conversion efficiency.
Article
Chemistry, Organic
Yuichi Ikemoto, Sho Chiba, Zhenyao Li, Qiang Chen, Hiroki Mori, Yasushi Nishihara
Summary: Copper-catalyzed carboazidation of alkenes with trimethylsilyl azide and cyclic ethers has been achieved, allowing cyclic ethers to be used as alkylating reagents under oxidative conditions. Styrene derivatives and 1,1-diaryl alkenes can be used as starting materials to obtain carboazidation products. The reaction proceeds via a radical pathway, as shown by radical trapping and clock experiments.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Qiang Chen, Liyan Fu, Yasushi Nishihara
CHEMICAL COMMUNICATIONS
(2020)