Article
Chemistry, Multidisciplinary
Xianyong Zhou, Luozheng Zhang, Jianwei Yu, Dong Wang, Chang Liu, Shi Chen, Yaru Li, Yan Li, Meiqing Zhang, Yuanjun Peng, Yanqing Tian, Jinsong Huang, Xingzhu Wang, Xugang Guo, Baomin Xu
Summary: A highly efficient integrated ideal-bandgap perovskite/bulk-heterojunction solar cell (IPBSC) with an inverted architecture is reported. The IPBSC features a near infrared (NIR) polymer DTBTI-based bulk-heterojunction (BHJ) layer atop a modified perovskite film. The IPBSC exhibits cascade-like energy level alignment and efficient passivation effect, resulting in efficient charge transfer and improved near infrared light response. The IPBSC also achieves a record-breaking power conversion efficiency and improved stability compared to control solar cells.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Baitian He, Luting Tang, Jinming Zhang, Manjun Xiao, Guiting Chen, Chuanbo Dai
Summary: We developed two copolymers, PDNB and PDNB-2F, based on difluoro-quinoxaline with a naphthalimide substituent unit, and PDNB-2F:Y6-based non-fullerene polymer solar cells achieved a power conversion efficiency of 12.18%.
Article
Nanoscience & Nanotechnology
Li-Hui Chou, Tsubasa Mikie, Masahiko Saito, Cheng-Liang Liu, Itaru Osaka
Summary: In this study, new NTz-based polymers were synthesized with improved solubility by introducing alkylthienyl substituents in the polymer backbone. These polymers exhibited higher photovoltaic performances in nonfullerene-based organic photovoltaic cells, attributed to enhanced miscibility with the nonfullerene acceptor and improved charge generation and reduced charge recombination.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Zuojia Li, Kui Feng, Jingwei Wang, Min Li, Qianqian Xu, Xiaochang Li, Xugang Guo
Summary: In this study, eco-friendly solvent-processed all-polymer solar cells were developed using wide-bandgap polymer PSTZ and narrow-bandgap polymer DCNBT-IDT as materials. The solar cells processed with o-xylene and THF showed remarkable power conversion efficiencies and high short-circuit currents, indicating that utilizing a blend of narrow polymer acceptor and compatible polymer donor is an effective strategy for advancing eco-friendly solvent-processed all-PSCs.
Article
Chemistry, Physical
Weiping Wang, Baofeng Zhao, Heng Zhao, Zhiyuan Cong, Liuchang Wang, Haimei Wu, Wei Ma, Zhi Yang, Zihui Meng, Chao Gao
Summary: A series of asymmetric acceptor-pi-donor-pi '-acceptor-type (A-pi-D-pi '-A) non-fullerene acceptors (NFAs) were synthesized by linking halogenated ending groups at the 4-position of 3-ethylhexoxythiophene (pi-segment) on one side and at the 5 position of 3-ethylhexoxythiophene (pi'-segment) on the other side. The asymmetrical molecular structure and distinct pi-bridged segments resulted in a half-planar-half twisted backbone configuration. The fluorine and chlorine atoms on h-IEICO-4F and h-IEICO-4Cl exhibited excellent electron-attracting properties, leading to red-shifted absorption and down-shifted molecular energy levels. The J52:h-IEICO-4F device showed superior performance with enhanced exciton dissociation and collection efficiency, suppressed charge recombination, high and balanced charge transport ability, improved morphological properties, and better crystallinity.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Weiping Wang, Baofeng Zhao, Heng Zhao, Zhiyuan Cong, Liuchang Wang, Haimei Wu, Wei Ma, Zhi Yang, Zihui Meng, Chao Gao
Summary: A series of asymmetric A-pi-D-pi'-A non-fullerene acceptors were designed and synthesized, and h-IEICO-4F and h-IEICO-4Cl showed excellent photovoltaic performances due to their special molecular structures and electron-attracting properties, with an efficiency of 11.65% achieved for the J52:h-IEICO-4F device.
ACS APPLIED ENERGY MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Dan Zhou, Yanyan Wang, Shu Yang, Jianwei Quan, Jiawei Deng, Jianru Wang, Yubing Li, Yongfen Tong, Qian Wang, Lie Chen
Summary: Recently, the power conversion efficiency (PCE) of organic solar cells (OSCs) has dramatically increased, with benzodithiophene (BDT)-based OSCs showing great potential and achieving a PCE of over 19%. This paper systematically reviews the recent progress and development of BDT-based OSCs, as well as the relationship between the structure of polymer donor materials (PDMs) and the performance of OSCs. The paper also discusses the development and future prospects of single junction OSCs.
Article
Polymer Science
Sultan Taskaya Aslan, Eda Alemdar Yilmaz, Tugba Haciefendiog, Yasemin Arslan Udum, Levent Toppare, Erol Yildirim, Ali Cirpan
Summary: A series of donor-acceptor alternative polymers with 2D-BDT and 1D-BDT as donors and quinoxaline as acceptor were successfully synthesized by Stille coupling reactions. The different structures showed varying effects on the optical properties of the polymers, with selenophene-containing polymers exhibiting lower oxidation and reduction potentials and more pronounced red-shifts in absorption onset wavelength. Kinetic studies revealed significant optical contrast in the bipolaron region for all polymers, with the P3-based solar cell achieving the highest efficiency.
EUROPEAN POLYMER JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Jianghao Jin, Qiao Wang, Kaige Ma, Wenfei Shen, Laurence Alphonse Belfiore, Xichang Bao, Jianguo Tang
Summary: With the emergence of ADA'DA-type non-fullerene acceptors, the power conversion efficiencies of organic photovoltaic devices have reached 20% in recent years. These acceptors bring new vitality to the field by enriching NFA types and having excellent compatibility with donor materials. They also promote the research of various device architectures and processing techniques. This review summarizes the recent progress in polymer solar cells with efficiency over 17% and discusses the future opportunities and challenges of organic photovoltaic commercialization.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Deyu Liu, Yusheng Lei, Xiaozhou Ji, Yilei Wu, Yangju Lin, Yunfei Wang, Song Zhang, Yu Zheng, Yuelang Chen, Jian-Cheng Lai, Donglai Zhong, Hao-Wen Cheng, Jerika A. Chiong, Xiaodan Gu, Sangah Gam, Youngjun Yun, Jeffrey B-H Tok, Zhenan Bao
Summary: This study improves the understanding of the design concept by investigating the effect of bulky side groups asymmetrically substituted on conjugated polymer semiconductor backbones. The results show that the introduction of conjugated rigid fused-rings with bulky side groups can improve the mechanical stretchability and electrical properties of the material.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Zhe Zhang, Zhixiang Li, Peiran Wang, Hongbin Chen, Kangqiao Ma, Yunxin Zhang, Tainan Duan, Chenxi Li, Zhaoyang Yao, Bin Kan, Xiangjian Wan, Yongsheng Chen
Summary: Developing new polymerized small molecular acceptor (PSMA) is crucial for improving the performance of all-polymer solar cells. Two PSMAs (namely PZC16 and PZC17) are reported based on the newly developed CH-series small molecule acceptors. Non-aromatic conjugated units are adopted as the linkers to reduce molecular torsion. The PM6:PZC17-based devices exhibit significantly higher power conversion efficiency (PCE) compared to PM6:PZC16-based devices, and the large area device achieves an excellent PCE of 15.14%, among the top performance for reported all-polymer solar cells (all-PSCs).
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Seunggyun Hong, Chang Eun Song, Du Hyeon Ryu, Sang Kyu Lee, Won Suk Shin, Eunhee Lim
Summary: This study introduces two cyclohexyl-substituted non-fullerene small molecules with the same molecular backbone and different properties. One molecule exhibits higher thermal stability and crystallinity, while the other can form a uniform film through solution-processing due to enhanced solubility. By pairing with a polymer donor, the organic solar cell device based on one of the small molecules shows improved performance with a high power conversion efficiency.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Ha Kyung Kim, Han Yu, Mingao Pan, Xiaoyu Shi, Heng Zhao, Zhenyu Qi, Wei Liu, Wei Ma, He Yan, Shangshang Chen
Summary: A group of regioregular polymer acceptors with different linker units were synthesized and their optoelectrical properties and photovoltaic performances were systematically studied. The results showed that the linker units have significant impacts on the structure and properties of the polymer acceptors. The vinylene-based polymer acceptor exhibited better absorption and electron-transporting capacity. This study provides guidance for the development of polymer acceptors for all-polymer solar cells.
Article
Chemistry, Multidisciplinary
Xiaochen Wang, Rui Zhao, Zicheng Ding, Shengzhong Frank Liu, Yongfang Li
Summary: The design and development of low-cost and efficient photovoltaic materials is a major challenge for polymer solar cells (PSCs). In this study, a highly promising electron-donating polymer X1 with a simple chemical structure was synthesized. The carboxylate substituents on the polymer gave it good solubility, low-lying highest occupied molecular orbital (HOMO) energy level, and superior absorption. PSCs based on X1 as the donor achieved a high power conversion efficiency of 16.6% and a remarkable short-circuit current density of 27.07 mA cm(-2). This research shows the potential of carboxylated BDT as an effective building block for high-performance photovoltaic materials.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Wenyan Su, Qunping Fan, Ishita Jalan, Yufei Wang, Wenhong Peng, Tao Guo, Weiguo Zhu, Donghong Yu, Lintao Hou, Ellen Moons, Ergang Wang
Summary: The study developed a series of low band gap nonconjugated terpolymer acceptors using a ternary polymerization strategy, incorporating ITIC building blocks to optimize the photoelectric properties and enhance the performance of all-polymer solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Chenyu Shang, Shuai Zhang, Dong Han, Xiqiang Ding, Yaowen Zhang, Chunming Yang, Jianxu Ding, Xichang Bao
Summary: A ternary quasi-all-polymer solar cell (Q-allPSC) was developed using a combination of the ternary strategy and solid additive engineering. The introduction of PC71BM improved the VOC and photon capture efficiency, thereby enhancing the short circuit current density. Effective charge transfer between PC71BM and PYIT was observed, forming an electron transport channel for efficient charge transport. The addition of PC71BM also improved the crystallinity of the ternary blend and reduced phase separation. By introducing a high dielectric-constant PFBEK solid additive, the efficiency of Q-allPSC reached 16.42%. This method provides a new research direction for all-polymer solar cells.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Multidisciplinary
Jianghao Jin, Qiao Wang, Kaige Ma, Wenfei Shen, Laurence Alphonse Belfiore, Xichang Bao, Jianguo Tang
Summary: With the emergence of ADA'DA-type non-fullerene acceptors, the power conversion efficiencies of organic photovoltaic devices have reached 20% in recent years. These acceptors bring new vitality to the field by enriching NFA types and having excellent compatibility with donor materials. They also promote the research of various device architectures and processing techniques. This review summarizes the recent progress in polymer solar cells with efficiency over 17% and discusses the future opportunities and challenges of organic photovoltaic commercialization.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chenyu Han, Jianxiao Wang, Shuai Zhang, Liangliang Chen, Fuzhen Bi, Junjie Wang, Chunming Yang, Pengchao Wang, Yonghai Li, Xichang Bao
Summary: Research on organic solar cells (OSCs) has focused on material innovation and device engineering. This study investigates the complicated relationship between photovoltaic conversion and multidimensional intermolecular interactions in OSCs. The results emphasize the importance of these interactions in improving the efficiency of OSCs.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Analytical
Qiannan Li, Yufei Wang, Qianqian Zhu, Haifang Liu, Jianbo Liu, Hong-Min Meng, Zhaohui Li
Summary: A novel dual-mode sensing system based on molybdophosphoric heteropoly acid (PMA) and fluorescent microspheres (FMs) was developed for monitoring alkaline phosphatase (ALP) activity. The system utilized the catalytic hydrolysis of l-ascorbic acid-2-phosphate (AAP) by ALP to generate a colorimetric signal and reduce PMA to phosphorus molybdenum blue (PMB). Additionally, the fluorescence of FMs was quenched through the inner-filter effect, enabling simultaneous fluorescence detection. The system showed high sensitivity with a limit of detection of 0.27 U L-1 and 0.11 U L-1, and demonstrated good analytical performance in biological samples. A portable test kit for visual detection of ALP in serum samples was also developed using a smartphone as a visual detection platform.
Article
Chemistry, Multidisciplinary
Junjie Wang, Qingrui Luan, Pengchao Wang, Chenyu Han, Fuzhen Bi, Chunming Yang, Yonghai Li, Xichang Bao
Summary: Although NFREAs have lower synthetic costs, achieving high efficiencies in organic solar cells (OSCs) requires complex and expensive pre- or/and post-treatments. This study introduces phenylalkyl side groups (CnPh) to construct new NFREAs called BOR-CnPh without the need for additional treatments. The modified alkyl spacers of CnPh side groups control the acceptor's aggregation and regulate the interactions between donor (D) and acceptor (A). The optimization of the blend delivers efficient networks with a face-on orientation, resulting in the highest efficiency among as-cast OSCs based on NFREAs.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Biochemical Research Methods
Dan Liu, Qianqian Zhu, Lian Zhang, Shiqin Wang, Xuan Yin, Shiyu Wu, Bo Wang, Xiaochuan Ye, Jing Nie
Summary: By using chemometrics methods and bioactivity re-evaluation, 10 anti-inflammatory markers of Chrysanthemi Flos were identified, which improves the quality control of Chrysanthemi Flos.
BIOMEDICAL CHROMATOGRAPHY
(2023)
Article
Materials Science, Paper & Wood
Qianqian Wang, Simeng Liu, Honglei Chen, Jun Liu, Huan Liu, Qianqian Zhu
Summary: In this study, highly efficient and environmentally friendly carboxylated cellulose silica hybrid adsorbents were developed by combining the advantages of cellulose and silica. The surface property and chemical composition of the hybrid adsorbents were extensively characterized, and the results showed that silica particles were densely deposited on their surface. These hybrid adsorbents demonstrated a high adsorption capacity that was more than 45% higher than that of carboxylated cellulose adsorbent, thanks to their porous structure and large specific surface area. They also maintained a high MB adsorption efficiency of up to 70% even after undergoing five cycles. This research has important implications for wastewater treatments as the cellulose silica hybrid adsorbents offer sustainable and cost-effective alternatives to traditional adsorbents.
Article
Biochemistry & Molecular Biology
Lu Li, Yuanyuan Jiang, Qianqian Zhu, Dawei Liu, Mingkai Chang, Yongzhe Wang, Ruitong Xi, Wenfei Wang
Summary: This study explored the potential of using Hyaluronan (HA) with different molecular weights as potential drugs for treating post-intensive care syndrome (PICS) in mice. The results showed that both molecular weights of HA could increase the survival rate of PICS mice, with 1600 kDa-HA showing promise as a protective agent. However, caution should be taken when using 3 kDa-HA due to its negative effects on PICS model survivability at the early stages of the experiment. Additionally, HA can reverse the changes in gut microbiota in PICS mice, improving intestinal structure and reducing inflammation.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Chemistry, Multidisciplinary
Qianqian Wang, Wen Niu, Shixuan Feng, Jun Liu, Huan Liu, Qianqian Zhu
Summary: Cellulosenanocrystal (CNC) suspensions can self-assemble into chiral nematic liquid crystals, leading to the development of versatile optical materials. However, the scale-up production and commercial success of chiral nematic CNC superstructures face significant challenges due to the trade-off between uniform structure and rapid self-assembly. This review focuses on accelerating chiral nematic CNC assembly and promoting long-range oriented superstructures.
Article
Chemistry, Multidisciplinary
Xiaoning Wang, Jianxiao Wang, Pengchao Wang, Chenyu Han, Fuzhen Bi, Junjie Wang, Nan Zheng, Cheng Sun, Yonghai Li, Xichang Bao
Summary: The importance of guest distribution in ternary organic solar cells is highlighted in this study, and the primary driving forces to regulate guest distributions are outlined. Optimized internal molecular distributions can maximize the performance of the cells.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Qiang Bai, Kesi Xiong, Chaohui Zhang, Lina Wang, Wenhao Han, Qianqian Zhu, Fanglin Du, William W. Yu, Ning Sui
Summary: A metal-free boron-doped graphdiyne quantum dot (BGDs) modified hollow tubular g-C3N4 photocatalyst (BGD/TCN) was synthesized to activate per-oxymonosulfate (PMS) and achieve effective carrier separation for degradation of bisphenol A. The degradation rate of bisphenol A (20 ppm) with 0.5 mM PMS was 0.0634 min-1, 3.7 times higher than TCN alone. The roles of BGDs in electron distribution and photocatalytic properties were identified through experiments and density functional theory (DFT) calculations. The possible degradation intermediates of bisphenol A were monitored and confirmed to be non-toxic. This newly-designed material was successfully applied in actual water bodies, showing promising prospects for water remediation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Jin-Tao Song, Yu-Duo Fu, Ke-Xing Song, Qian-Qian Zhu, Xiao-Wen Peng, Yun-Xiao Hua, Yan-Jun Zhou, Xiu-Hua Guo, Shi-Zhong An, Ying-Xuan Ma
Summary: The effect of interaction between Ce and P on the microstructure and properties of copper was investigated using various techniques and tests. The results showed that the interaction significantly influenced the grain size and conductivity of as-cast copper. Importantly, the plasticity of as-cast copper was not severely affected, with the elongation of Cu-0.016P-0.075Ce reaching 39.3%, attributed to a strong binding force of the coherent interface between CeP and copper.
MATERIALS SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Xiqiang Ding, Xiao Kang, Fuzhen Bi, Chenyu Shang, Shuai Zhang, Dong Han, Mingliang Sun, Xichang Bao
Summary: In organic solar cells, it is important to investigate the relationship between structure and performance of materials through rational design of small molecule donors. This study replaces a thiophene unit with a thiazole unit in the bridge structure, enhancing the connection between the bridges and end groups. Non-covalent N-S interaction between the end groups and thiazole unit expands the negative charge region of the molecule, enhances the electron-withdrawing ability of the end groups, and results in a twisted linear molecular structure. This work enriches the design strategy to strengthen the interaction between bridges and end groups, and provides a reference for studying the relationship between molecular structure and crystallinity.
ORGANIC ELECTRONICS
(2023)
Article
Polymer Science
Meifang Li, Shuai Zhang, Chenghao Zhang, Caiyun Guo, Xichang Bao, Liangliang Han
Summary: Alternating weak electron donating and electron withdrawing units can be used to achieve wide bandgap (WBG) pi-conjugated polymers for non-fullerene polymer solar cells (PSCs). The wide sunlight absorption of the WBG polymer:LBG-NFA blending film and a deep-lying highest occupied molecular orbital (HOMO) energy level are important for high current density and voltage. This work compares the effects of different side chain substituents on the properties of polymers and provides design ideas for WBG polymeric donors for BHJ-PSCs.
Article
Chemistry, Multidisciplinary
Jianxiao Wang, Chenyu Han, Shuguang Wen, Fuzhen Bi, Zunyuan Hu, Yonghai Li, Chunming Yang, Xichang Bao, Junhao Chu
Summary: All-polymer solar cells (APSCs) with excellent mechanical and thermal stability have the most potential for flexible power supply systems. However, the strong interchain entanglement between conjugated polymers limits the advancement of photovoltaic performance. By using a miscible polymer donor PBB2-H, the molecular arrangement and phase-separation scale of the all-polymer active layer can be optimized for efficient exciton and carrier utilization. The ternary APSC with the PPHJ structure achieved a champion efficiency of 17.94% and showed great shelf stability and photostability.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
