Article
Chemistry, Physical
Christina Cheng, Stephen Wong, Garrett LeCroy, Sebastian Schneider, Enrique Gomez, Michael F. Toney, Alberto Salleo
Summary: The performance of nonfullerene-based organic solar cells is influenced by the morphology of the donor:acceptor blend, which is controlled by the composition. However, it is challenging to identify morphological design rules due to the complex relationship between composition-dependent phase behavior and device properties. In this study, the authors establish a direct link between PM6:Y6 film morphology and device properties by combining X-ray scattering and photocurrent spectroscopy. The results reveal that the charge transfer state at the amorphous-PM6:crystalline-Y6 interfaces controls the open-circuit voltage.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Chase L. Radford, Priyadarshani D. Mudiyanselage, Amy L. Stevens, Timothy L. Kelly
Summary: Organic solar cells are attractive for indoor and low-light applications, but face challenges such as low photocurrents and susceptibility to defects. This study introduces heteroatom-based blocking groups to enhance the efficiency of non-fullerene acceptor-based solar cells. The results highlight the importance of designing donor:acceptor systems specifically for indoor applications.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Qing Yang, Xuan Liu, Shuwen Yu, Zhendong Feng, Lixin Liang, Wei Qin, Youyang Wang, Xiaobo Hu, Shaoqiang Chen, Zhaochi Feng, Guangjin Hou, Kaifeng Wu, Xin Guo, Can Li
Summary: The use of IT-DOH as a acceptor material has successfully improved the performance of i-PSCs, achieving a high conversion efficiency of 22.09%.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Polymer Science
Chan Im, Sang-Woong Kang, Jeong-Yoon Choi, Jongdeok An
Summary: The research investigates the application of non-fullerene type acceptors in the field of photovoltaics, revealing their potential as electron donors. Through spectrally resolved photovoltaic characters and transient absorption spectroscopy analysis, the pathways of NFA-originated excitons and origin-dependent decay behaviors were disclosed, deepening the understanding of the application of new material classes in renewable energy strategies.
Article
Chemistry, Physical
Steve Halaby, Michael W. Martynowycz, Ziyue Zhu, Sergei Tretiak, Andriy Zhugayevych, Tamir Gonen, Martin Seifrid
Summary: Understanding the relationship between molecular structure and solid-state arrangement is crucial for designing new organic semiconductor materials. Microcrystal electron diffraction, combined with electronic structure calculations, can elucidate the connections between NFA lattice arrangements, molecular structures, and charge-transport properties, guiding the design of new OSCs and NFAs.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Fumiya Hamada, Akinori Saeki
Summary: The study found that the PBDB-T: ITIC blend has faster electron and hole mobility compared to PBDB-T: PCBM, while the mobility in PBDB-T: Y6 is moderate. Additionally, the relaxation of electrons in PBDB-T: Y6 is slower compared to holes, which aligns with the preferred normal device structure.
Article
Materials Science, Multidisciplinary
Zhixiang Li, Changzun Jiang, Xin Chen, Guangkun Song, Xiangjian Wan, Bin Kan, Tainan Duan, Ekaterina A. Knyazeva, Oleg A. Rakitin, Yongsheng Chen
Summary: Three non-fullerene acceptors BTP-OC4, BTP-OC6, and BTP-OC8 with different 4-alkyloxyphenyl side-chains were synthesized via a new route without organotin reagent. The length of the alkyloxy group did not affect the energy levels and absorption of the acceptors, but it modulated the crystallinity and morphology of the active layer. The PM6:BTP-OC6 system showed the lowest energy loss of 0.513 eV, the highest power conversion efficiency of 17.59%, and excellent stability. Furthermore, when Y6 was introduced, the PCE increased to over 18%. Our study demonstrates a feasible strategy to develop high-performance acceptors by fine-tuning the aromatic side chain.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Physical
Guoping Li, Fei Qin, Robert M. Jacobberger, Subhrangsu Mukherjee, Leighton O. Jones, Ryan M. Young, Robert M. Pankow, Brendan P. Kerwin, Lucas Q. Flagg, Ding Zheng, Liang-Wen Feng, Kevin L. Kohlstedt, Vinod K. Sangwan, Mark C. Hersam, George C. Schatz, Dean M. Delongchamp, Michael R. Wasielewski, Yinhua Zhou, Antonio Facchetti, Tobin J. Marks
Summary: In this study, the influence of the symmetry of non-fullerene acceptors (NFAs) on the performance of bulk-heterojunction (BHJ) polymer solar cells (PSCs) is investigated. The research finds that BHJ PSCs using symmetric NFAs exhibit higher performance compared to those using asymmetric NFAs. Analysis reveals the reasons behind the lower performance of asymmetric NFAs.
Article
Chemistry, Multidisciplinary
Xabier Rodriguez-Martinez, Paula Hartnagel, Sergi Riera-Galindo, Gulzada Beket, Thomas Osterberg, Feng Gao, Thomas Kirchartz, Olle Inganas
Summary: Non-fullerene acceptors have revolutionized indoor organic photovoltaics with high power conversion efficiencies, but transferring this performance to larger-scale prototyping remains challenging. The PM6:IO4Cl blend, a successful indoor OPV photoactive layer, is investigated for its industrial potential, and the thick and semitransparent devices are fabricated in air. Anomalous current-voltage characteristics are observed, with the cathode side generally outperforming the anode side due to a dead layer at the PAL/anode contact interface. Symmetric J-V curves and improved light utilization efficiency are achieved by making the PALs thin enough. Certain all-polymer and polymer:fullerene blends are identified as suitable candidates for thick device up-scaling, and ternary blends show potential in mitigating electrical asymmetry.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Mingpeng Li, Zhixiang Li, Guangkun Song, Changzun Jiang, Xin Chen, Jian Wang, Yang Yang, Xiangjian Wan, Chenxi Li, Yongsheng Chen
Summary: In this study, three non-fullerene acceptors (NFAs) with different end groups (F'-2Cl, F'-NCl, and F'-N2Cl) were designed and synthesized to investigate the impact of molecular structures and morphologies on the photovoltaic properties and energy loss of organic solar cells (OSCs). It was found that the PM6:F'-N2Cl based OSC exhibited a favorable morphology and achieved the highest power conversion efficiency (PCE) of 14.13% with a J(sc) of 20.31 mA cm(-2), a V-oc of 0.927 V, and a FF of 74.68%. Moreover, extending the conjugation of the end group led to a narrower molecular bandgap and lower energy loss in F'-NCl and F'-N2Cl based devices. This work provides an efficient strategy to optimize the molecular structures of non-fullerene acceptors and improve the properties of OSCs.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Kan Ding, Yongxi Li, Stephen R. Forrest
Summary: In this study, the thermal stability of inverted, halogen-rich non-fullerene acceptor (NFA)-based organic photovoltaics with MoOx as the hole transporting layer was investigated. The power conversion efficiency showed a check-mark shaped thermal aging pattern, which was explained by the presence of a high Cl concentration at the BHJ/MoOx interface and the chlorination of MoOx after thermal aging. Inserting a thin C-70 layer between BHJ and MoOx effectively suppressed the thermal degradation mechanisms and significantly increased the device lifetime at 80 degrees C.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Jinhua Gao, Wei Gao, Xiaoling Ma, Jian Wang, Xuelin Wang, Chunyu Xu, Xiaoli Zhang, Jian Zhang, Chuluo Yang, Alex K. -Y. Jen, Fujun Zhang
Summary: High-performance organic photovoltaics with varying active layer thicknesses were fabricated, showing that ternary OPVs exhibit relatively high power conversion efficiency and fill factor under 300 nm thick active layers.
Review
Chemistry, Multidisciplinary
Tianhao Wu, Xing Li, Yabing Qi, Yiqiang Zhang, Liyuan Han
Summary: A review was conducted on the recent progress of defect passivation towards efficient and stable PSCs, focusing on the structure-performance correlation of passivation molecules. Guidelines were provided for researchers to select more suitable passivation agents, and future trends in the development of passivation strategies were discussed.
Review
Chemistry, Physical
Hao-Wen Cheng, Yepin Zhao, Yang Yang
Summary: Solar energy is gaining attention as an alternative solution to global energy demands, with semitransparent organic photovoltaics (ST-OPVs) receiving focus for their transparency and power conversion efficiency. Recent developments in ST-OPVs center around narrow-bandgap donors and non-fullerene acceptors, utilizing various strategies to improve performance and providing insightful guidelines for future advancements.
ADVANCED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Kyohei Nakano, Kosuke Terado, Yumiko Kaji, Hiroyuki Yoshida, Keisuke Tajima
Summary: Y6, a newly developed non-fullerene electron acceptor, shows superior performance in organic photovoltaics and improves efficiency when combined with electron-donor polymers. Comparison with a similar analogue, F8IC, reveals that the performance difference between Y6 and F8IC only appears at high concentrations, potentially due to the aggregation structures and exciton loss in bulk heterojunctions. Studies suggest that Y6 exhibits stronger suppression of exciton loss and non-geminate recombination, along with in-plane molecular alignment contributing to efficient exciton collection at high concentrations.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Dentistry, Oral Surgery & Medicine
Yanan Yang, Xiaoli He, Siying Xia, Feng Liu, Lijun Luo
Summary: This study demonstrated that LIMP2 plays a role in promoting foam cell formation induced by P. gingivalis, which is related to lysosomal functions, interaction with CAV1, and requires activity of NF-kappa B and JNK. The findings suggest a close connection between periodontitis and atherosclerosis through the involvement of LIMP2 in foam cell formation.
JOURNAL OF PERIODONTAL RESEARCH
(2021)
Article
Oncology
Xiaoting Wang, Chong Xu, Shengming Wang, Weijun Huang, Yuenan Liu, Xiaoxu Zhang, Niannian Li, Zhenfei Gao, Fan Wang, Nan Zhang, Jian Guan, Hongliang Yi, Feng Liu
Summary: Glutamine-alpha KG-CECR2 axis was found to play a role in tumor growth in LSCC. Lower expression of CECR2 in tumors compared to adjacent tissues was observed in LSCC patients. Depletion of CECR2 promoted tumor cell growth, indicating its tumor suppressor effects.
CLINICAL & TRANSLATIONAL ONCOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Yang Dong, Jianyong Yin, Teng Chen, Jiejun Wen, Qunzi Zhang, Xiaomei Li, Wenjun Lin, Feng Liu, Ying Fan, Niansong Wang
Summary: The study demonstrated that Dl-3-n-butylphthalide (NBP) has a significant protective effect on preventing renal ischemia reperfusion injury by alleviating inflammation, oxidative stress, and cell apoptosis. The findings suggest that NBP could be a promising candidate for combating acute kidney injury.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Yang Zhang, Sijie Cheng, Yu He, Chaojie Tang, Feng Liu, Yun Sun, Shuo Zhao, Greta S. P. Mok, Hong Yang, Zhiguo Zhou, Wu Wang
Summary: This study demonstrates that a nanoplatform can enhance the detection of an aneurysm-related thrombus as well as aneurysm itself to assist further treatment of IA.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Neurosciences
Qingxiu Yao, Hui Wang, Hengchao Chen, Zhuangzhuang Li, Yumeng Jiang, Zhipeng Li, Jiping Wang, Yazhi Xing, Feng Liu, Dongzhen Yu, Shankai Yin
Summary: The study identified SPTAN1 as a critical molecule for HC stereocilia morphology and auditory function through regulation of focal adhesion signaling. Sptan1 deficiency in mice led to deafness, abnormal formation of stereocilia and cuticular plates.
MOLECULAR NEUROBIOLOGY
(2022)
Article
Endocrinology & Metabolism
Fan Wang, Juanjuan Zou, Huajun Xu, Weijun Huang, Xiaoman Zhang, Zhicheng Wei, Xinyi Li, Yupu Liu, Jianyin Zou, Feng Liu, Huaming Zhu, Hongliang Yi, Jian Guan, Shankai Yin
Summary: Chronic intermittent hypoxia and chronic sleep fragmentation are two main pathological features of obstructive sleep apnea. This study found correlations between intestinal microbiota, metabolites, and lipid metabolism under conditions of CIH or CSF, which affected adipose tissue and hepatic lipid metabolism.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Cell Biology
Hua Yang, Fei Wang, Xinya Guo, Feng Liu, Zhonghua Liu, Xiangyang Wu, Mengmeng Zhao, Mingtong Ma, Haipeng Liu, Lianhua Qin, Lin Wang, Tianqi Tang, Wei Sha, Yang Wang, Jianxia Chen, Xiaochen Huang, Jie Wang, Cheng Peng, Ruijuan Zheng, Fen Tang, Lu Zhang, Chunyan Wu, Stefan H. Oehlers, Zhigang Song, Jialei She, Hua Feng, Xunwei Xie, Baoxue Ge
Summary: Pathogenic mycobacteria secrete the protein FadA under hypoxia, which suppresses host immunity by modulating host fatty acid metabolism and promotes the progression of granulomas. Supplementation of acetate increases acetyl-CoA levels, inhibiting the formation of granulomas.
Article
Genetics & Heredity
Niannian Li, Zhenfei Gao, Jinhong Shen, Yuenan Liu, Kejia Wu, Jundong Yang, Shengming Wang, Xiaoman Zhang, Yaxin Zhu, Jingyu Zhu, Jian Guan, Feng Liu, Shankai Yin
Summary: The study investigates the impact of m6A modification in severe OSA, identifying dysregulated m6A regulators in severe OSA patients and proposing tailored treatment strategies based on different subclusters. Functional analysis and assessment of immune response activity provide critical insights for future research and treatment options.
FRONTIERS IN GENETICS
(2022)
Article
Chemistry, Multidisciplinary
Zhenfei Gao, Anzhao Wang, Yongxu Zhao, Xiaoxu Zhang, Xiangshan Yuan, Niannian Li, Chong Xu, Shenming Wang, Yaxin Zhu, Jingyu Zhu, Jian Guan, Feng Liu, Shankai Yin
Summary: This study identified the substrates of BTBD9-mediated ubiquitination through proteomic analysis and ubiquitinome analysis. Among the potential substrates, IMPDH2 was identified as a novel target and may be associated with sleep dysregulation.
Article
Pathology
Maoxiang Xu, Shengming Wang, Yumeng Jiang, Jingjing Wang, Yuanping Xiong, Wenqi Dong, Qingxiu Yao, Yazhi Xing, Feng Liu, Zhengnong Chen, Dongzhen Yu
Summary: Single-cell RNA sequencing was used to analyze the cellular composition of vestibular schwannomas (VSs) and investigate the intercellular communication between Schwann cells (SCs) and tumor-associated fibroblasts. The study identified heterogeneous SC subtypes and revealed an important role of integrin and growth factor signaling in the communication between SCs and fibroblasts. These findings provide insights into the development of VSs.
AMERICAN JOURNAL OF PATHOLOGY
(2022)
Article
Critical Care Medicine
Huajun Xu, Feng Liu, Zhiqiang Li, Xinyi Li, Yuenan Liu, Niannian Li, Xiaoxu Zhang, Zhenfei Gao, Xiaoman Zhang, Yupu Liu, Jianyin Zou, Lili Meng, Suru Liu, Huaming Zhu, Xulan Tang, Hongmin Wu, Kaiming Su, Bin Chen, Dongzhen Yu, Haibo Ye, Haoyan Chen, Hongliang Yi, Shankai Yin, Jian Guan, Yongyong Shi
Summary: This study identified novel genetic variants associated with obstructive sleep apnea (OSA) and objective sleep-related traits, providing insight into the genetic architecture of OSA. The SLC52A3 gene may be a potential therapeutic target and riboflavin could be a therapeutic agent for OSA.
AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE
(2022)
Article
Neurosciences
Anzhao Wang, Zhicheng Wei, Haolin Yuan, Yaxin Zhu, Yu Peng, Zhenfei Gao, Yuenan Liu, Jinhong Shen, Huajun Xu, Jian Guan, Shankai Yin, Feng Liu, Xinyi Li
Summary: This study investigates the association of single nucleotide polymorphisms (SNPs) in the FKBP5 gene with obstructive sleep apnea (OSA) and OSA-related traits. The results show that four SNPs in the FKBP5 gene are associated with sleep respiratory events in patients with moderate-to-severe OSA during REM sleep, as well as sleep architecture variables in men with moderate OSA. FKBP5 variants may be a potential predisposing factor for sleep disorders.
FRONTIERS IN NEUROSCIENCE
(2023)
Article
Immunology
Jianxia Chen, Fen Tang, Haohao Li, Xiangyang Wu, Yong Yang, Zhonghua Liu, Xiaochen Huang, Jie Wang, Ruijuan Zheng, Lin Wang, Haipeng Liu, Junfang Xu, Peng Wang, Feng Liu
Summary: This study reveals a significant decrease in Aplp2 levels in TB patients, M.tb-infected macrophages, and mice. Knockdown or mutation of Aplp2 leads to reduced macrophage-mediated killing of M.tb, accompanied by decreased expression of iNOS and reduced cytokine production. Aplp2 mutant mice show increased susceptibility to mycobacterial infection.
INTERNATIONAL IMMUNOPHARMACOLOGY
(2023)
