Article
Chemistry, Applied
Yuanwei Wu, Zurong Du, Xiao Kang, Jianxiao Wang, Xin Liang, Pengchao Wang, Xiaofei Qu, Yonghai Li, Xichang Bao
Summary: A new acceptor polymer PNDIOD-30Se was synthesized by partially replacing thiophene with selenophene, showing improved performance in all-polymer solar cells with high power conversion efficiency and open circuit voltage.
Article
Energy & Fuels
Qiuchen Lu, Qungui Wang, Peng Song, Fengcai Ma, Yanhui Yang, Yuanzuo Li
Summary: The study investigates the effect of doping a medium bandgap polymer into traditional binary heterojunction solar cells for ternary solar cells. Simulation and global modeling reveal the competition mechanism of electron transfer and evaluate crucial parameters, showing that doping different bandgap polymers can enhance electron transfer and improve key performance indicators of ternary solar cells.
Article
Energy & Fuels
Hang Yang, Yingying Dong, Hongyu Fan, Yue Wu, Chaohua Cui, Yongfang Li
Summary: The study involves the rational design and synthesis of a large-bandgap material IBR-F for ternary PSCs, which leads to an improved PCE and reduced energy loss. Experimental results demonstrate that the incorporation of IBR-F results in higher Voc, lower energy loss, and significantly improved PCE in the ternary PSCs.
Article
Chemistry, Multidisciplinary
Guilong Cai, Zeng Chen, Xinxin Xia, Yuhao Li, Jiayu Wang, Heng Liu, PingPing Sun, Chao Li, Ruijie Ma, Yaoqiang Zhou, Weijie Chi, Jianqi Zhang, Haiming Zhu, Jianbin Xu, He Yan, Xiaowei Zhan, Xinhui Lu
Summary: The study achieved a high open-circuit voltage binary D18-Cl/L8-BO system with the use of a volatile solid additive, 1,4-diiodobenzene (DIB), increasing crystalline packing and decreasing vertical domain sizes of phase separation. This led to improved exciton dissociation, charge transport, and collection, resulting in the best-performing device with an efficiency of 18.7%, making it the highest V-OC reported among OSCs with efficiencies over 17%. This work demonstrates the potential of solid additives with two iodine atoms to tune morphology in the vertical direction for future optimization of OSCs.
Article
Chemistry, Physical
Jian Yang, Liang Chu, Ruiyuan Hu, Wei Liu, Nanjing Liu, Yuhui Ma, Waqar Ahmad, Xing'ao Li
Summary: This study utilized two-dimensional g-C3N4 nanosheets to modify the TiO2 layers in planar PSCs, effectively improving the efficiency of the solar cells by enhancing Voc and reducing hysteresis phenomenon.
Article
Chemistry, Physical
Tao Zhang, Cunbin An, Pengqing Bi, Qianglong Lv, Jinzhao Qin, Ling Hong, Yong Cui, Shaoqing Zhang, Jianhui Hou
Summary: This study introduces a new thiadiazole-based conjugated polymer PB2F with a deep HOMO level, achieving high PCE in OSCs when blended with IT-4F. Furthermore, adding PB2F as a third component to PBDB-TF:BTP-eC9 blend leads to outstanding PCE, one of the highest in OSCs.
ADVANCED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Linglong Ye, Yinuo Yang, Chunhui Liu, Xiaopeng Duan, Shijie Wang, Wei Li, Xiaobo Sun, Tao Wang, Wei Ma, Weiwei Li, Yanming Sun
Summary: A cross-linking strategy is employed to create a three-dimensional network structure, enhancing the mechanical properties of copolymers. The synthesized cross-linked conjugated copolymers, PC2, PC5, and PC8, with different monomer ratios, exhibit higher power conversion efficiencies (PCE) when blended with Y6 acceptor compared to the random linear copolymer, PR2. Additionally, the flexible PSC based on PC2:Y6 retains approximately 88% of the initial efficiency value after 2000 bending cycles, outperforming the PR2:Y6-based device with only 12.8% remaining initial PCE.
Article
Chemistry, Multidisciplinary
Mei Liu, Yujie Xu, Zhicheng Gao, Chao Zhang, Jing Yu, Jian Wang, Xiaoling Ma, Haixia Hu, Hang Yin, Fujun Zhang, Baoyuan Man, Qianqian Sun
Summary: Sarcosine as an ETL successfully improved the performance of inverted organic solar cells by reducing the work function and increasing surface energy of ITO or ITO/ZnO, optimizing the morphology and molecular arrangement of the active layers, promoting charge transport and collection, and ultimately enhancing the power conversion efficiency.
Review
Chemistry, Multidisciplinary
Lei Zhu, Ming Zhang, Wenkai Zhong, Shifeng Leng, Guanqing Zhou, Yecheng Zou, Xuan Su, Han Ding, Peiyang Gu, Feng Liu, Yongming Zhang
Summary: The article reviews the importance of non-fullerene acceptors (NFAs) in organic solar cells (OSCs) and the key steps and influencing factors for morphology optimization. It examines the morphological characteristics and recent research progress of pi-conjugated molecular systems based on IDT and Y6, as well as n-type pi-conjugated polymers, with special attention to high-performance Y6-based NFAs. The article aims to provide useful information and guidance for morphology optimization and achieving higher efficiency devices.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Physical
Quan Liu, Sander Smeets, Sigurd Mertens, Yuxin Xia, Andrea Valencia, Jan D'Haen, Wouter Maes, Koen Vandewal
Summary: This study focused on polymer-small molecule blends and successfully reduced the nonradiative voltage losses of organic solar cells from typical values around 250 mV to an unprecedented value of 155 mV, while achieving high external quantum efficiency. The findings demonstrate the potential of organic material blends that combine excellent photovoltaic and electroluminescent properties.
Article
Chemistry, Physical
David Garcia Romero, Lorenzo Di Mario, Giuseppe Portale, Maria Antonietta Loi
Summary: The study found that post-processing with SVA on TPD-3F polymer and IT-4F non-fullerene acceptor can improve the power conversion efficiency, fill factor, short-circuit current, and stability of the devices. GIWAXS measurements showed that the increased crystallinity of the acceptor molecules led to an increase in photogenerated currents, promoting effective exciton dissociation and charge collection.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Shuping Zhang, Miao Zhang, Xuelin Wang, Chunyu Xu, Wenjing Xu, Jinhua Gao, Jian Wang, Wai-Yeung Wong, Jae Hoon Son, Sang Young Jeong, Han Young Woo, Fujun Zhang
Summary: The combination of iridium-based polymer and two nonfullerene acceptors, with ITIC-Th as a morphology regulator, enhances charge mobility and transport balance in the ternary active layer, resulting in improved PCE values due to optimized phase separation and molecular arrangement. Incorporation of ITIC-Th demonstrates a positive effect on PCE improvement, as shown by high external quantum efficiency values in the spectral range from 300 to 820 nm for the optimal ternary PSCs.
SUSTAINABLE ENERGY & FUELS
(2021)
Article
Chemistry, Multidisciplinary
Bing Zheng, Jianling Ni, Shaman Li, Yuchen Yue, Jingxia Wang, Jianqi Zhang, Yongfang Li, Lijun Huo
Summary: In this study, a new mesopolymer MePBDFClH is designed and synthesized as a donor material for high-performance organic solar cells (OSCs) and achieves a record power conversion efficiency (PCE) of 15.06%. Comparing with traditional polymers, mesopolymers show lower differentiation and great potential in producing high-performance organic photovoltaic materials.
Article
Nanoscience & Nanotechnology
Su Hong Park, Na Yeon Kwon, Sung Hoon Jung, Amit Kumar Harit, Han Young Woo, Min Ju Cho, Dong Hoon Choi
Summary: In this study, a novel approach using a D1-D2 conjugated block copolymer, PM6-b-TT, was investigated to replace the physical blend of two donors in polymer solar cells. The blend films demonstrated excellent crystallinity and a film morphology favorable for PSCs. This strategy shows promising potential to enhance the performance of future PSCs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Su Hong Park, Na Yeon Kwon, Sung Hoon Jung, Amit Kumar Harit, Han Young Woo, Min Ju Cho, Dong Hoon Choi
Summary: The recent breakthrough in PCEs of PSCs using a ternary system has sparked interest for further research, although optimizing composition and controlling the interaction between active materials remain challenging. This study investigated the use of a conjugated block copolymer, PM6-b-TT, to replace the physical blend of two donors in the ternary system. The resulting PSC demonstrated higher PCE and thermal stability, indicating the promising potential of the novel D1-D2 CBP strategy in enhancing future PSC performance.
ACS APPLIED MATERIALS & INTERFACES
(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
Engineering, Civil
Yibing Liu, Lijun Huo, Jun Wu, Ali Kashif Bashir
Summary: As city boundaries expand and vehicles increase, the transportation system faces increasing overload, which has negative effects on people's commutes and overall work and life. However, with the development of 6G-driven Intelligent Transportation Systems (ITS), it becomes possible to alleviate urban congestion. Existing solutions are limited in their ability to optimize traffic efficiently. Therefore, we propose the Direction Decide as a Service (DDaaS) scheme, which incorporates a novel three-layer service architecture, improved modeling and aggregation methods, and a dynamic traffic control algorithm to effectively reduce traffic congestion.
IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION SYSTEMS
(2023)
Article
Nanoscience & Nanotechnology
Yuchen Yue, Jiaxin Yang, Bing Zheng, Lijun Huo, Huanli Dong, Jingxia Wang, Lei Jiang
Summary: An efficient strategy for controlling the liquid flow and alignment of A-pi-D-pi-A BTR was introduced, resulting in precise and high-quality patterning. This research provides not only an effective strategy for the fabrication of aligned micropatterns of liquid crystals, but also a novel insight for the fabrication of high-quality micropatterns of the P-N heterojunction toward integrated optoelectronics.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Bing Zheng, Yuchen Yue, Jianling Ni, Xucong Zhou, Yongrui He, Xiaoman Gui, Han Shen, Yanan Jing, Jince Zhao, Jianqi Zhang, Yuan Zhang, Jingxia Wang, Lei Jiang, Lijun Huo
Summary: In order to address the challenge of high-performance and stable variance in organic solar cell design, a steric effect strategy was used to modify benzodifuran (BDF)-based polymer by introducing chlorine atoms at different positions, resulting in two polymers PBDFCl-1 and PBDFCl-2. The PBDFCl-2-based device demonstrated a higher power conversion efficiency (PCE) of 17.00% compared to the PBDFCl-1-based device, due to the optimized molecular stacking and improved blend miscibility. Additionally, the variation in PCE due to different molecular weights for PBDFCl-2 was minimal, indicating reduced batch-to-batch variation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yuchen Yue, Zhaoqing Su, Bing Zheng, Lijun Huo, Jingxia Wang, Lei Jiang
Summary: The patterning strategy of organic semiconductors is crucial for integrated circuits. However, most research focuses on single-component patterning due to uncontrollable liquid dewetting, while little work has been done on multi-component or heterojunction patterning, which is important for optoelectronic devices. A capillary-bridge strategy was introduced for patterning bulk heterojunction (BHJ) micro-arrays, using liquid crystalline BTR and PC71BM as donor and acceptor, respectively. The BTR:PC71BM arrays exhibited hierarchical morphology with suitable phase separation, leading to efficient charge generation and transport. Additionally, the photodetector showed excellent performance with high light on/off ratio, responsivity, and specific detectivity. This progress demonstrates the promising potential of the capillary-bridge strategy for high-quality BHJ micropattern arrays fabrication.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Environmental Sciences
Peihao Sun, Xinzhe Zhao, Mingxiao Liu, Hanxiao Wu, Ce Lv, Shuo Zhou, Zhiming Ding, Lijun Huo, Liguo Yang, Aixin Liang
Summary: Exposure to DON during lactation adversely affects the development of mammary glands and reduces the production of beta-casein. RNA-seq analysis shows that DEGs are enriched in inflammatory response and HIF-1 signaling pathway, leading to increased inflammation and myeloper-oxidase activity. DON exposure also impairs blood-milk barrier integrity and hormone balance, resulting in mammary gland injury and decreased beta-casein expression.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Zhi-Ming Ding, Shang-Ke Wang, Shou-Xin Zhang, Yang-Wu Chen, Yong-Sheng Wang, Sheng-Ji Yang, Yun-Xia Cao, Yi-Liang Miao, Li-Jun Huo
Summary: Triclocarban (TCC) is a harmful chemical that is used globally as a broad-spectrum antibacterial agent and is present in high concentrations in the environment. The exposure to TCC can occur through skin contact, diet, and inhalation, leading to its accumulation in the human body. The impact of TCC on human health, specifically its reproductive toxicity, needs to be evaluated due to the lack of clear understanding about its safety profile. This study examined the effect of TCC on the early embryonic development of mice and identified the mechanisms involved.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Energy & Fuels
Mohammed S. G. Hamed, Jude N. Ike, Yilin Wang, Ke Zhou, Wei Ma, Genene Tessema Mola
Summary: Ag/CuPO4 nanocomposite was successfully synthesized for use in thin-film organic solar cells (TFOSCs) to suppress charge recombination and enhance light absorption. The morphological and optical properties were studied, showing a significant improvement in device performance and a 95% increase in power conversion efficiency. The concentration of the nanocomposite in the absorber layer was found to affect photocurrent measurements. This article discusses the effects of the metal nanocomposite in TFOSCs in terms of local surface plasmon resonance and far-field scattering.
Article
Environmental Sciences
Sheng-Ji Yang, Yong-Sheng Wang, Li-Dan Zhang, Zhi-Ming Ding, Xu Zhou, Ze-Qun Duan, Ming Liu, Ai-Xin Liang, Li-Jun Huo
Summary: This study demonstrated that exposure to propyl gallate (PG) compromised oocyte meiotic maturation in mice by inducing mitochondrial stress, activating apoptosis, inducing DNA damage, and increasing oxidative stress, as well as altering histone methylation level.
ENVIRONMENTAL TOXICOLOGY
(2023)
Article
Cell Biology
Chen Wang, Hui Sun, John S. S. Davis, Xiaojie Wang, Lijun Huo, Nan Sun, Qianzhi Huang, Xiangmin Lv, Cheng Wang, Chunbo He, Changjiu He, Yang Zhou, Jiyun Wu, Liguo Yang, Guohua Hua
Summary: Female subfertility is a global reproductive issue associated with abnormal ovarian follicular development. This study demonstrates that FHL2 is highly expressed in human and mouse ovaries, especially in granulosa cells (GCs). Knockout of Fhl2 in mice leads to decreased litter size and impaired follicular development. Mechanistic studies reveal that FHL2 regulates Egf and Egfr expression through interacting with transcriptional factors AP-1 or NF-kappa B, and also affects YAP1 expression and activation in GCs. These findings suggest that FHL2 plays a crucial role in follicular development and fertility, providing a potential therapeutic target for subfertility.
CELL DEATH & DISEASE
(2023)
Article
Chemistry, Physical
Zechen Li, Xiaojun Li, Jingwei Xue, Jinyuan Zhang, Can Zhu, Jing Li, Wei Ma, Lei Meng, Yongfang Li
Summary: A new A-DA ' D-A structured narrow bandgap small molecular acceptor (SMA) Se46, utilizing benzoselenadiazole as the A' unit and branched 2-butyloctyl as upper side chains in its DA' D central fused ring, was successfully designed and synthesized. Se46 exhibits red-shifted absorption and higher energy levels compared to other small molecular acceptors L8-BO and Y6, resulting in higher power conversion efficiency, short circuit current density, and open circuit voltage in organic solar cells. This study demonstrates that selenium substitution and branched alkyl upper side chains are effective strategies for enhancing the photovoltaic performance of narrow bandgap A-DA ' D-A type acceptors.
ACS ENERGY LETTERS
(2023)
Article
Multidisciplinary Sciences
Tengfei Li, Gangjian Hu, Liting Tao, Jizhong Jiang, Jingming Xin, Yawen Li, Wei Ma, Liang Shen, Yanjun Fang, Yuze Lin
Summary: High-sensitivity organic photodetectors (OPDs) with strong near-infrared (NIR) photoresponse have been developed by introducing quinoid-terminals with high Mulliken-electronegativity, extending the absorption range to below silicon bandgap. These OPDs exhibit high detectivity (D*) in the NIR range, surpassing the performance of commercial InGaAs photodetectors. Furthermore, a spectrometer prototype and NIR imaging have been successfully demonstrated using these OPDs.
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)
Article
Multidisciplinary Sciences
Zhong Zheng, Jianqiu Wang, Junzhen Ren, Shijie Wang, Yafei Wang, Wei Ma, Lei Zheng, Hao Li, Yanjie Tang, Shaoqing Zhang, Jianhui Hou
Summary: Meniscus-guided coating is widely used in the printing process of photovoltaic electronics and offers outstanding depositing accuracy, functional diversity, and operating convenience. However, there is still limited understanding about the hydrodynamic behaviors of bulk heterojunction ink and the key dynamic parameter that governs film formation. In this study, we establish a principle to accurately evaluate the Hamaker constant and reveal the critical effect of precursor film length on flow evolution, polymer aggregation, and final morphology. Our prediction method for precursor film length enables accurate tracing of the optimal coating speed. Furthermore, a power conversion efficiency of 18.39% has been achieved in a 3-cm(2) cell using blade coating, with only a slight reduction from 19.40% in a 0.04-cm(2) cell using spin coating.
Article
Materials Science, Multidisciplinary
Weixuan Liang, Jiaxing Huang, Zejun Wang, Ciyuan Huang, Qi Wei, Chenghui Liao, Ruijie Ma, Tao Liu, Weiya Zhu, Yuan Li
Summary: In this work, modified PEDOT: PSS materials (PEDOT: PSS-BA, PEDOT: PSS-HA, and PEDOT: PSS-OA) were prepared by doping alkyl diamines into PEDOT: PSS, resulting in enhanced conductivity due to more ordered molecular packing. Among these modified products, the OSC devices based on PEDOT: PSS-BA demonstrated a superior power conversion efficiency of 18.44%, which is one of the highest values in binary OSCs.
ACS MATERIALS LETTERS
(2023)
