Article
Chemistry, Multidisciplinary
Shijie Liang, Chengyi Xiao, Chengcheng Xie, Baiqiao Liu, Haisheng Fang, Weiwei Li
Summary: In this study, double-cable conjugated polymers with pendent electron acceptors, including fullerene, rylene diimides, and nonfused acceptors, were developed for application in single-component organic solar cells (SCOSCs) with efficiencies approaching 10%. Y-series electron acceptors were incorporated into double-cable polymers to improve the efficiencies of SCOSCs. A highly crystalline Y-series acceptor based on quinoxaline core and the random copolymerized strategy were used to optimize the ambipolar charge transport and the nanophase separation of the double-cable polymers. As a result, an efficiency of 13.02% was obtained in the random double-cable polymer, representing the highest performance in SCOSCs, while the regular double-cable polymer only provided a low efficiency of 2.75%. The significantly enhanced efficiencies are attributed to higher charge carrier mobilities, better ordering conjugated backbones, and Y-series acceptors in random double-cable polymers.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Zhijie Hu, Chengyi Xiao, Wen Liang Tan, Baiqiao Liu, Shijie Liang, Xudong Jiang, Christopher R. McNeil, Weiwei Li
Summary: This study investigates the effect of alkyl chain length on crystallinity, packing motif, and photovoltaic performance in double-cable conjugated polymers. It is found that the alkyl chain length shows a parabolic distribution in crystallinity, resulting in variations in optical bandgap, packing motif, charge transport, and photovoltaic performance.
Article
Polymer Science
Bai-Qiao Liu, Yun-Hua Xu, Feng Liu, Cheng-Cheng Xie, Shi-Jie Liang, Qiao-Mei Chen, Wei-Wei Li
Summary: In this study, fullerene-contained double-cable conjugated polymers were successfully constructed using the functionalization-polymerization method. The power conversion efficiencies were increased by enhancing the fullerene contents. These conjugated polymers with molecular heterojunction show potential application in organic electronic devices.
CHINESE JOURNAL OF POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shijie Liang, Baiqiao Liu, Safakath Karuthedath, Jing Wang, Yakun He, Wen Liang Tan, Hao Li, Yunhua Xu, Ning Li, Jianhui Hou, Zheng Tang, Frederic Laquai, Christopher R. McNeill, Christoph J. Brabec, Weiwei Li
Summary: Double-cable conjugated polymers with near-infrared electron acceptors were synthesized and applied in single-component organic solar cells. The packing of donor and acceptor segments was optimized to enhance charge separation efficiency, leading to high efficiency, broad photo response, and excellent thermal/light stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Nanoscience & Nanotechnology
Zhijie Hu, Chao Wang, Yikun Wang, Baiqiao Liu, Shijie Liang, Chengyi Xiao, Christopher R. Mcneill, Weiwei Li
Summary: The invention of near-infrared pedant-based double-cable conjugated polymers has shown significant efficacy in single-component organic solar cells. These polymers exhibit broad absorption spectra and suitable energy levels. Fluorination of the polymers further enhances their performance, leading to decreased voltage losses and increased power conversion efficiencies in SCOSCs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Xiaoqing Liu, Guitao Feng, Wen Liang Tan, Zhijie Hu, Shijie Liang, Christopher R. McNeill, Xudong Jiang, Weiwei Li
Summary: Double-cable conjugated polymers have potential application in single-component organic solar cells. Tuning the acceptor content allows for the observation of morphology evolution and impact on photovoltaic performance.
Article
Materials Science, Multidisciplinary
Chao Wang, Dongdong Xia, Fan Yang, Junyu Li, Yonggang Wu, Weiwei Li
Summary: Double-cable conjugated polymers have been successfully applied in single-component organic solar cells, with the chemical structures and nanophase separation being key factors for enhancing photovoltaic performance. Introducing a benzothiadiazole unit improved efficiency, with thiophene-based polymers showing higher electron mobilities compared to thienothiophene-containing polymers. The study suggests promising applications for high-performance double-cable conjugated polymers in SCOSCs.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jeroen Royakkers, Kunping Guo, Daniel T. W. Toolan, Liang-Wen Feng, Alessandro Minotto, Daniel G. Congrave, Magda Danowska, Weixuan Zeng, Andrew D. Bond, Mohammed Al-Hashimi, Tobin J. Marks, Antonio Facchetti, Franco Cacialli, Hugo Bronstein
Summary: Conjugated polymers are important for optoelectronic devices, but controlling their excited state properties is challenging. Molecular encapsulation can suppress aggregation enhanced emission, leading to enhanced radiative properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Environmental
Chengcheng Xie, Baiqiao Liu, Chengyi Xiao, Xin Liu, Ying Liu, Ziqi Cai, Yaowen Li, Guanghao Lu, Weiwei Li
Summary: Flexibility and large-area feasibility are important for the development of organic solar cells (OSCs) for industrialization. However, the efficiency and reproducibility of small-area and large-area OSC devices are hindered by the different viscosities of the donor and acceptor. Double-cable polymers can effectively address these issues by acting as a single photoactive layer in OSCs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Zhaofan Yang, Chong Guan, Xudong Jiang, Guangcong Zhang, Chengcheng Xie, Chunhui Liu, Chengyi Xiao, Weiwei Li
Summary: A wide-bandgap double-cable conjugated polymer is chosen as the photoactive layer material for indoor photovoltaic applications, showing well-matched absorption spectra with indoor light and providing high power conversion efficiency and storage stability.
Article
Polymer Science
Min-Kyoung Kim, Gyung-Tak Kim, Taemin Kim, Moon-Gyu Kim, Felix Sunjoo Kim, Taeshik Earmme, Ye-Jin Hwang
Summary: Two poly(naphthalene diimide)s (PNDIs) were developed using different conjugated side chains, with P(NDI-BBT) having higher absorption coefficient and narrower optical energy band gap compared to P(NDI-BT), and also lower lowest unoccupied molecular orbital energy levels. Interestingly, lower crystallinity was observed in P(NDI-BBT) compared to P(NDI-BT).
EUROPEAN POLYMER JOURNAL
(2021)
Article
Chemistry, Applied
Guobing Zhang, Hao Yu, Mingxiang Sun, Longxiang Tang, Longzhen Qiu
Summary: Two conjugated polymers based on naphthalene diimide as acceptor and different co-units were designed and synthesized, with the meta-substituted polymer exhibiting the highest field-effect transistor performances with a mobility of about 0.07 cm(2) V(-1)s(-1).
Article
Chemistry, Multidisciplinary
Austin M. Evans, Kelsey A. Collins, Sangni Xun, Taylor G. Allen, Samik Jhulki, Ioannina Castano, Hannah L. Smith, Michael J. Strauss, Alexander K. Oanta, Lujia Liu, Lei Sun, Obadiah G. Reid, Gjergji Sini, Danilo Puggioni, James M. Rondinelli, Tijana Rajh, Nathan C. Gianneschi, Antoine Kahn, Danna E. Freedman, Hong Li, Stephen Barlow, Garry Rumbles, Jean-Luc Bredas, Seth R. Marder, William R. Dichtel
Summary: The bulk conductivity of 2D polymers (2DPs) can be enhanced by controlled n-doping. Optical and transient microwave spectroscopy measurements show that the n-doped 2DPs exhibit desired electronic properties. Density functional theory calculations reveal the main contribution to electronic conductivity in 2DPs. This study provides a new approach for synthesizing 2DPs with specific conductive properties.
ADVANCED MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Doan Vu, Martyn Jevric, Jonas M. Bjuggren, Chao Wang, Xun Pan, Lars Thomsen, Eliot Gann, Mats R. Andersson, Christopher R. McNeill
Summary: Controlling the aggregation and crystallinity of semiconducting polymers can improve the photovoltaic performance of all-polymer solar cells. However, reducing aggregation and crystallinity does not always result in favorable blend morphology or guarantee improvement in the photovoltaic performance.
ACS APPLIED POLYMER MATERIALS
(2022)
Review
Chemistry, Physical
Mohammed A. Jameel, Terry Chien-Jen Yang, Gregory J. Wilson, Richard A. Evans, Akhil Gupta, Steven J. Langford
Summary: The development of perovskite solar cells has made significant progress, with a focus on electron transport layer and n-type materials. The latest review article provides a detailed overview of organic n-type ETL materials, highlighting key parameters for efficiency and stability of PSCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Kaihu Xian, Kangkang Zhou, Mingfei Li, Junwei Liu, Yaowen Zhang, Tao Zhang, Yong Cui, Wenchao Zhao, Chunming Yang, Jianhui Hou, Yanhou Geng, Long Ye
Summary: By suppressing the aggregation and crystallization behaviors of polymerized Y-series acceptors, the performance, stability, and mechanical robustness of all-polymer solar cells were simultaneously improved. The optimized ternary all-polymer blend exhibited high photovoltaic efficiency and improved mechanical flexibility.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Murali Gedda, Despoina Gkeka, Mohamad Insan Nugraha, Alberto D. Scaccabarozzi, Emre Yengel, Jafar Khan, Lain Hamilton, Yuanbao Lin, Marielle Deconinck, Yana Vaynzof, Frederic Laquai, Donal D. C. Bradley, Thomas D. Anthopoulos
Summary: This study reports highly efficient green PeLEDs based on blends of low-dimensional hybrid perovskite and organic semiconductor, which achieve greatly enhanced performance characteristics through the use of self-assembled monolayers as hole-injecting layers.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Heng Zhao, Jingwei Xue, Hongbo Wu, Baojun Lin, Yuhang Cai, Ke Zhou, Daqin Yun, Zheng Tang, Wei Ma
Summary: The power conversion efficiency of organic solar cells has reached high values, but current fabrication methods using toxic solvents and limited photoactive layer thickness restrict their practical development. This study successfully fabricated high-efficiency, thick-film organic solar cells using non-halogenated solvents and hot slot-die coating technique, leading to the industrial development of organic solar cells.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunhao Cai, Cong Xie, Qian Li, Chunhui Liu, Jiaxin Gao, Min Hun Jee, Jiawei Qiao, Yun Li, Jiali Song, Xiaotao Hao, Han Young Woo, Zheng Tang, Yinhua Zhou, Chunfeng Zhang, Hui Huang, Yanming Sun
Summary: Although all-polymer solar cells (all-PSCs) have great commercial potential, their power conversion efficiencies (PCEs) lag behind small molecule acceptor-based counterparts. Achieving optimized morphology and high molecular ordering in all-polymer blends is challenging due to competition between the crystallinity of the polymer donor and acceptor during film formation. In this study, a ternary strategy is employed to modulate the morphology and molecular crystallinity of an all-polymer blend, resulting in improved PCEs and performance.
ADVANCED MATERIALS
(2023)
Editorial Material
Multidisciplinary Sciences
Junwei Liu, Jingjing Wang, Wenchao Zhao, Zhihua Zhou, Long Ye
Article
Nanoscience & Nanotechnology
Chao Wang, Chong Guan, Ting Wu, Xiaoqing Liu, Jie Fang, Feng Liu, Chengyi Xiao, Weiwei Li
Summary: Two non-fused polymerized small-molecule acceptors (PSMAs) with a benzothiadiazole (BT) core have been developed for application in all-polymer solar cells (all-PSCs). The S-O non-covalent interaction and the regioregularity were introduced to improve the crystallinity and charge transport properties. As a result, a high-power conversion efficiency (PCE) of 11.42% with enhanced photocurrent was obtained, representing the highest PCE based on non-fused PSMAs. The encouraging results will inspire more design of non-fused PSMAs towards high-performance all-PSCs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Noufal Kandoth, Sonu Pratap Chaudhary, Subhadeep Gupta, Kumari Raksha, Atin Chatterjee, Shresth Gupta, Safakath Karuthedath, Catherine S. P. De Castro, Freïdeïric Laquai, Sumit Kumar Pramanik, Sayan Bhattacharyya, Amirul Islam Mallick, Amitava Das
Summary: A ternary heterojunction material composed of a Bi-based perovskite-TiO2 hybrid and a [Ru-(2,2'-bpy)(2)(4,4'-dicarboxy-2,2'-bpy)](2+) (RuPS) photosensitizer is developed for the treatment of bacterial biofilms. This material can generate reactive oxygen species and reactive nitrogen species upon solar light irradiation, leading to effective biofilm inactivation with high biocompatibility.
Article
Chemistry, Multidisciplinary
Lisi Yang, Shuaishuai Shen, Xiang Chen, Huan Wei, Dongdong Xia, Chaowei Zhao, Ningfang Zhang, Yuanyuan Hu, Weiwei Li, Hao Xin, Jinsheng Song
Summary: This study investigates two conjugated polyelectrolytes containing electron-withdrawing units, which exhibit good charge transport and conductivity as electron transport layers. These polyelectrolytes demonstrate excellent performance as electron transport layers, both with or without doping, and show good compatibility with PM6:Y6 and PM6:L8-BO blends, achieving high efficiency in photovoltaic devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shijie Liang, Chengyi Xiao, Chengcheng Xie, Baiqiao Liu, Haisheng Fang, Weiwei Li
Summary: In this study, double-cable conjugated polymers with pendent electron acceptors, including fullerene, rylene diimides, and nonfused acceptors, were developed for application in single-component organic solar cells (SCOSCs) with efficiencies approaching 10%. Y-series electron acceptors were incorporated into double-cable polymers to improve the efficiencies of SCOSCs. A highly crystalline Y-series acceptor based on quinoxaline core and the random copolymerized strategy were used to optimize the ambipolar charge transport and the nanophase separation of the double-cable polymers. As a result, an efficiency of 13.02% was obtained in the random double-cable polymer, representing the highest performance in SCOSCs, while the regular double-cable polymer only provided a low efficiency of 2.75%. The significantly enhanced efficiencies are attributed to higher charge carrier mobilities, better ordering conjugated backbones, and Y-series acceptors in random double-cable polymers.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaobo Yu, Liangliang Chen, Cheng Li, Chenying Gao, Xiang Xue, Xisha Zhang, Guanxin Zhang, Deqing Zhang
Summary: This paper reports terpolymers as intrinsically stretchable polymeric semiconductors with good ductility and high charge mobility by incorporating non-centrosymmetric spiro-fluorene units into the backbone of DPP-based conjugated polymers. These terpolymers exhibit high crack onset strains, reduced tensile moduli, and high charge mobilities (>1.0 cm2 V-1 s-1) at 100% strain, even after repeated stretching and releasing cycles. Among them, terpolymer P2, with cyclopropane linked to the spiro-fluorene unit, has the highest reported mobility of 3.1 cm2 V-1 s-1 at 150% strain and 1.4 cm2 V-1 s-1 after 1000 cycles of stretching and releasing.
ADVANCED MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Chicheng Ma, Weiwei Li, Dan Xu, Qiang Wu, Cong Li, Jinchun Tu, Kexi Zhang
Summary: A highly exposed MoS2 hybrid electrocatalyst with active edge sites is successfully prepared by employing a confined strategy of the pores of a 2D metal-organic framework (MOF). The hybrid electrocatalyst shows better hydrogen evolution reaction (HER) efficiency, with a low overpotential of 76 mV at 10 mA cm(-2) and a Tafel slope of 73 mV dec(-1), compared to pristine MoS2. The denotative growth of MoS2 from the internal pore of 2D MOF prevents stacking and exposes more active edge sites, while the incorporation of Co into MoS2 enhances the HER activity through strong electronic interaction.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Chemistry, Multidisciplinary
Jiayou Zhang, Houdong Mao, Kangkang Zhou, Lifu Zhang, Dou Luo, Pei Wang, Long Ye, Yiwang Chen
Summary: This research proposes an entangled strategy combining green sequential printing and polymer-induced spontaneous gradient heterojunction phase separation morphology to optimize the power conversion efficiency and mechanical properties of flexible organic solar cells (FOSCs). The toughened-pseudo planar heterojunction (Toughened-PPHJ) film demonstrates excellent tensile properties and achieves a high power conversion efficiency of 18.16%, significantly better than the conventional bulk heterojunction (BHJ) film (16.99%). This work provides important guidance for future flexible portable power supplies.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chong Guan, Chengyi Xiao, Xin Liu, Zhijie Hu, Ruoyao Wang, Chao Wang, Chengcheng Xie, Ziqi Cai, Weiwei Li
Summary: This study reports the discovery of non-covalent interactions that enhance the miscibility between insulating and conjugated polymers, leading to improved mechanical properties. The incorporation of polyvinyl chloride (PVC) into the conjugated polymer PM6 resulted in a cyclohexyl-like structure and improved mechanical properties in thin films. The PM6/PVC blend films also exhibited excellent thermal and bending stability in organic solar cells.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Baiqiao Liu, Shijie Liang, Safakath Karuthedath, Chengyi Xiao, Jing Wang, Wen Liang Tan, Ruonan Li, Hao Li, Jianhui Hou, Zheng Tang, Frederic Laquai, Christopher R. McNeill, Yunhua Xu, Weiwei Li
Summary: Three random double-cable conjugated polymers were designed with enhanced acceptor contents to achieve high-performance single-component organic solar cells (SCOSCs) by tailoring the nanophase separation of electron-donating and electron-accepting segments. The aggregation degree and charge-transporting pathways were influenced by the acceptor contents, and an optimal nanophase separation resulted in a high efficiency of 9.4% in SCOSCs. Random double-cable conjugated polymers serve as an excellent model for studying the impact of aggregation/crystallinity on high-performance SCOSCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Liwen Wang, Cai'e Zhang, Zhiyi Su, Yikai Wang, Wenli Su, Xuyan Man, Zaifei Ma, Wenkai Zhang, Cuihong Li, Chuluo Yang, Zhishan Bo
Summary: By modifying the end groups and side chains, four nonfullerene acceptors (NFAs) based on 10,11-dihydrodiindeno[1,2-b:2',1'-d]thiophene (DIDT) were synthesized, with tunable HOMO offsets of 0, 0.03, 0.04, and 0.06 eV when blended with PBDB-T. It was found that a near zero HOMO offset can achieve efficient charge separation and low voltage loss in organic solar cells (OSCs).
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
