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Near-infrared double-cable conjugated polymers based on alkyl linkers with tunable length for single-component organic solar cells

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Chinese Chemical Letters 2024年第4期35卷 452-456页

作者： Yikun Wang Qiaomei Chen Shijie Liang Dongdong Xia chaowei zhao Christopher R.McNeill Weiwei Li Beijing Advanced Innovation Center for Soft Matter Science and Engineering&State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China Institute of Applied Chemistry Jiangxi Academy of SciencesNanchang 330096China Department of Materials Science and Engineering Monash UniversityWellington RoadClaytonVictoria 3800Australia

The photovoltaic properties of double-cable conjugated polymers are significantly influenced by the length of the alkyl linkers that connect donor backbones and acceptor side units. In this study, a series of 2-(3-oxo-2,3-dihydroinden-1-ylidene)malononitrile(IC)-based double-cable polymers with alkyl linkers ranging from C_8H_(16)to C_(16)H_(32)(Px, x = 8, 10, 12, 14, 16) were synthesized for single-component organic solar cells(SCOSCs). Among these, the linker length x = 12(P12) is found to optimize the power conversion efficiencies(PCEs) in SCOSCs. Specifically, PCEs increase from P8 to P12 and then decline from P12to P16. Detailed investigations of optical absorption, charge transport, and morphology provide insights into the underlying factors contributing to these PCE variations. The findings indicate that the exceptional photovoltaic properties observed in P12 can be attributed to three key factors: A delicate balance between enhanced charge separation facilitated by the increased spacer length and reduced crystallinity resulting from longer spacers, higher charge mobilities, and well-balanced hole/electron transport characteristics. This study highlights the critical role of linker length in determining the photovoltaic properties of double-cable conjugated polymer-based SCOSCs and offers valuable guidance for the design of novel double-cable conjugated polymers.

关键词： Single-component organic solar cells Double-cable conjugated polymers Photovoltaic properties Alkyl linkers

Recent progress of thin-film photovoltaics for indoor application

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Chinese Chemical Letters 2020年第3期31卷 643-653页

作者： Nanfu Yan chaowei zhao Shengyong You Yuefeng Zhang Weiwei Li Institute of Applied Chemistry Jiangxi Academy of SciencesNanchang 330096China State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing 10090China

Indoor photovoltaics have attracted increasing attentions owing to their great potential in supplying energy for low power devices under indoor light in our daily *** third generation thin-film solar cells,including dye-sensitized solar cells,perovskite solar cells and organic solar cells,have made rapid progress from the aspect of materials design to photovoltaic *** review provides an overview on the recent advances in the development of indoor photovoltaic technologies based on the third generation solar *** design principles of advanced thin-film indoor photovoltaics were also summarized according to the characteristics of indoor light and the advantages of the third generation solar ***,after summarizing the current research progress,the perspective on this topic is provided.

关键词： Indoor photovoltaics Dye-sensitized solar cells Perovskites solar cells Organic solar cells Power conversion efficiency

Stable Radical TEMPO Terminated Perylene Bisimide(PBI) Based Small Molecule as Cathode Interlayer for Efficient Organic Solar Cells

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Chemical Research in Chinese Universities 2023年第2期39卷 213-218页

作者： ZHANG Ziwei XIA Dongdong XIE Qian zhao chaowei FANG Jie WU Yonggang LI Weiwei College of Chemistry and Environmental Science Hebei UniversityBaoding071002P.R.China Institute of Applied Chemistry Jiangxi Academy of SciencesNanchang330096P.R.China Beijing Advanced Innovation Center for Soft Matter Science and Engineering and State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing100029P.R.China

By combining stable radical tetramethylpiperidine nitrogen oxide(TEMPO)as end groups and perylene bisimide(PBI)as the core,a small molecular cathode interlayer(CIL)(PBI-TEMPO)was *** physical-chemical characterizations indicate that PBI-TEMPO can form smooth film,owns low unoccupied molecular orbital(LUMO)level of−3.67 eV and can reduce the work function of silver *** using PBI-TEMPO as CIL in non-fullerene organic solar cells(OSCs),the PM6:BTP-4Cl based OSCs delivered high power conversion efficiencies(PCEs)up to 17.37%,higher than those using commercial PDINO CIL with PCEs of 16.95%.Further device characterizations indicate that PBI-TEMPO can facilitate more efficient exciton dissociation and reduce charge recombination,resulting in enhanced current density and fill ***,PBI-TEMPO displays higher thermal stability than PDINO in *** PBI-TEMPO and PDINO solution were heated at 150℃ for 2 h and then were used as CIL in solar cells,PBI-TEMPO-based OSCs provided a PCE of 15%,while PDINO-based OSCs only showed a PCE of 10%.These results demonstrate that incorporating TEMPO into conjugated materials is a useful strategy to create new organic semiconductors for application in OSCs.

关键词： Tetramethylpiperidine nitrogen oxide(TEMPO) Perylene bisimide Cathode interlayer Organic solar cell Power conversion efficiency

Mechanical-robust and recyclable polyimide substrates coordinated with cyclic Ti-oxo cluster for flexible organic solar cells

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npj Flexible Electronics 2022年第1期6卷 321-329页

作者： Guangcong Zhang Qiaomei Chen Chengcheng Xie Yongmei Wang chaowei zhao Chengyi Xiao Yen Wei Weiwei Li Beijing Advanced Innovation Center for Soft Matter Science and Engineering&State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology100029 BeijingP.R.China Institute of Applied Chemistry Jiangxi Academy of SciencesNanchang 330096P.R.China MOE Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology Department of ChemistryTsinghua University100084 BeijingP.R.China

With the rapid development of flexible optoelectronic devices,recyclability is highly desirable for alleviating resource waste and environmental pollution,but remains ***,a fully closed-loop recyclable crosslinked polyimide(RCPI)was fabricated via carboxyl ligand exchange between the CPI with pendent carboxyl groups and the cyclic Ti-oxo cluster(CTOC)with labile carboxyl ligands,which could be reconverted into reprocessable CPI and CTOC solution by pivalic *** RCPI-based embedded AgNWs@RCPI electrode shows comparable high conductivity,transparency and low roughness with ITO(indium tin oxide)/glass electrode,and meanwhile outstanding mechanical *** related flexible organic solar cells(FOSCs)provided a high efficiency of 14.78% and maintained~97% of the initial efficiency after 5000 bending cycles at a small bending radius of 1 ***,the recyclability of the RCPI still retains after being manufactured into the *** work provides a promising strategy for recyclable flexible optoelectronic devices.

关键词： cluster polyimide bending

Artemisia argyi extract subfraction exerts an antifungal effect against dermatophytes by disrupting mitochondrial morphology and function

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Chinese Journal of Natural Medicines 2024年第1期22卷 47-61页

作者： CHEN Le ZHU Yunyun GUO chaowei GUO Yujie zhao Lu MIAO Yuhuan DU Hongzhi LIU Dahui College of Pharmacy Hubei University of Chinese MedicineWuhan 430065China National Resource Center for Chinese Materia Medica China Academy of Chinese Medical SciencesBeijing 100700China College of Pharmacy Nanjing University of Chinese MedicineNanjing 210023China

Artemisia argyi(***),a plant with a longstanding history as a raw material for traditional medicine and functional diets in Asia,has been used traditionally to bathe and soak feet for its disinfectant and itch-relieving *** its widespread use,scientific evidence validating the antifungal efficacy of *** water extract(AAWE)against dermatophytes,particularly Trichophyton rubrum,Trichophyton mentagrophytes,and Microsporum gypseum,remains *** study aimed to substantiate the scientific basis of the folkloric use of *** by evaluating the antifungal effects and the underlying molecular mechanisms of its active subfraction against *** results indicated that AAWE exhibited excellent antifungal effects against the three aforementioned dermatophyte *** subfraction AAWE6,isolated using D101 macroporous resin,emerged as the most potent *** minimum inhibitory concentrations(MICs)of AAWE6 against ***,***,and *** were 312.5,312.5,and 625μg·mL−1,*** electron microscopy(TEM)results and assays of enzymes linked to cell wall integrity and cell membrane function indicated that AAWE6 could penetrate the external protective barrier of ***,creating breaches(“small holes”),and disrupt the internal mitochondrial structure(“granary”).Furthermore,transcriptome data,quantitative real-time PCR(RT-qPCR),and biochemical assays corroborated the severe disruption of mitochondrial function,evidenced by inhibited tricarboxylic acid(TCA)cycle and energy ***,chemical characterization and molecular docking analyses identified flavonoids,primarily eupatilin(131.16±4.52 mg·g^(−1))and jaceosidin(4.17±0.18 mg·g^(−1)),as the active components of *** conclusion,the subfraction AAWE6 from *** exerts antifungal effects against dermatophytes by disrupting mitochondrial morphology and *** research validates the traditional use of *** and provides scient

关键词： Artemisia argyi Dermatophyte Antifungal activity Mitochondrial structure Mitochondrial function Transcriptome analysis

Fused-ring induced end-on orientation in conjugated molecular dyads toward efficient single-component organic solar cells

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聚集体(英文)

聚集体(英文) 2023年第2期4卷 291-299页

作者： Dongdong Xia Shengxi Zhou Wen Liang Tan Safakath Karuthedath Chengyi Xiao chaowei zhao Frédéric Laquai Christopher R.McNeill Weiwei Li Institute of Applied Chemistry Jiangxi Academy of SciencesNanchangChina Beijing Advanced Innovation Center for Soft Matter Science and Engineering&State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijingChina Department of Materials Science and Engineering Monash UniversityClaytonAustralia KAUST Solar Center(KSC) Physical Sciences and Engineering Division(PSE)Material Science and Engineering Program(MSE)King Abdullah University of Science and Technology(KAUST)ThuwalSaudi Arabia

The molecular orientations of conjugated materials on the substrate mainly include edge-on,face-on,and ***-on and face-on orientations have been widely observed,while end-on orientation has been rarely *** in organic solar cells(OSCs)charge transport is along the vertical direction,end-on orientation with conjugated backbones perpendicular to the substrate is recognized as the ideal microstructure for *** this work,we for the first time obtained the preferential end-on orientation in a conjugated molecular dyad that contains a conjugated backbone as donor and perylene bisimide side units as *** was realized by introducing a fused-ring structure to replace linear terthiophenes with conjugated backbones,yielding F-MDPBI and L-MDPBI ***,a shifting trend of the molecular orientation from dominating edge-on in L-MDPBI to preferential end-on in F-MDPBI was *** a consequence,vertical charge carrier mobilities in F-MDPBI are one order of magnitude higher than those with preferential edge-on orientation,so single-component OSCs based on this molecular dyad as a single photoactive layer provided a power conversion efficiency of 4.89% compared to 1.70% based on L-MDPBI with preferential edge-on orientation.

关键词： conjugated molecular dyads crystallinity edge-on end-on single-component organic solar cells

An Organic–Inorganic Hybrid Material Based on Benzo[ghi]perylenetri-imide and Cyclic Titanium-Oxo Cluster for Efficient Perovskite and Organic Solar Cells

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CCS Chemistry 2022年第3期4卷 880-888页

作者： Zhou Zhang Faming Han Jie Fang chaowei zhao Shuai Li Yonggang Wu Yuefeng Zhang Shengyong You Binghui Wu Weiwei Li Institute of Applied Chemistry Jiangxi Academy of SciencesNanchang 330096 College of Chemistry and Environmental Science Hebei UniversityBaoding 071002 State Key Laboratory for Physical Chemistry of Solid Surfaces Pen-Tung Sah Institute of Micro-Nano Science and TechnologyCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005 Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal UniversityGuilin 541004 Beijing Advanced Innovation Center for Soft Matter Science and Engineering and State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029

Perovskite and organic solar cells usually require electron-transport interlayers to efficiently transport electrons from the photoactive layer to the metal *** general,pure organic or inorganic materials are applied into the interlayers,but organic–inorganic hybrid materials have been rarely reported for this *** this work,we report using the first titanium-oxo cluster-based organic–inorganic hybrid as the interlayer material by introducing largeπ-conjugated benzo[ghi]perylenetriimides as an organic part via a simple ligand-exchange *** new hybrid material showed excellent solubility,well-aligned energy levels,and excellent electron mobilities,enabling its great potential application as an interlayer in solar cells such as perovskite and organic solar cells,providing high power conversion efficiencies of>20%and 16%,***,we claim that our present work introduces a new class of cluster-based organic–inorganic hybrid interlayer materials that exhibit promising application in organic electronics.

关键词： organic-inorganic hybrid material Ti-oxo clusters perylene diimide perovskite solar cells organic solar cells

Surfactant-Encapsulated Polyoxometalate Complex as a Cathode Interlayer for Nonfullerene Polymer Solar Cells

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CCS Chemistry 2022年第3期4卷 975-986页

作者： Jing Qiu Yue Zhang Yan Liu Huiru Liu Dongdong Xia Fan Yang chaowei zhao Weiwei Li Lixin Wu Fenghong Li State Key Laboratory of Supramolecular Structure and Materials Jilin UniversityChangchun 130012 Institute of Applied Chemistry Jiangxi Academy of SciencesNanchang 330096 Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190 College of Chemistry Chemical Engineering and Materials ScienceCollaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of ShandongKey Laboratory of Molecular and Nano ProbesMinistry of EducationShandong Normal UniversityJinan 250014 State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing 100029

An alcohol-soluble,environmentally friendly,and low-cost surfactant-encapsulated polyoxometalate complex[(C8H17)4N]4[SiW_(12)O40](TOASiW_(12))as a cathode interlayer(CIL)has exhibited excellent universality for various active layers and cathodes in nonfullerene polymer solar cells(NF-PSCs).In particular,incorporating TOASiW_(12) as the CIL enhanced power conversion efficiencies(PCEs)of the PM6:Y6-based NF-PSCs with Al or Ag cathode to 16.14%and 15.89%,respectively,and the PCEs of PM6:BTP-BO4Cl-based NF-PSCs with Al or Ag cathode to 17.04%and 17.00%,*** importantly,the performances of the devices with TOASiW_(12) were insensitive to the TOASiW_(12) thickness from 3 to 33 ***,the NF-PSCs with TOASiW_(12) exhibited better device *** characterization of the photocurrent density versus effective voltage,capacitance versus voltage and electron mobility demonstrated that TOASiW_(12) as the CIL effectively promoted exciton dissociation,charge-carrier extraction,built-in potential,charge-carrier density,and electron mobility in the *** findings suggest that TOASiW_(12) is a promising,competitive CIL for NF-PSCs fabricated by roll-to-roll processing.

关键词： surfactant-encapsulated polyoxometalate complex nonfullerene polymer solar cells cathode interlayer device stability thickness-insensitive low-cost

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中国当代非虚构文学英语译介:问题与对策

中国翻译 2024年第5期45卷 46-52,192页

作者：赵国月祝朝伟四川外国语大学

中国走向世界的内在驱动与世界了解中国的外在需求等因素,推动中国当代非虚构文学走向英语世界,其英译出版模式由单一的国外出版社译入发展为国内出版社译出与国外出版社译入齐头并举的局面。然而,译出作品与译入作品在选题倾向和叙事... 详细信息

中国走向世界的内在驱动与世界了解中国的外在需求等因素,推动中国当代非虚构文学走向英语世界,其英译出版模式由单一的国外出版社译入发展为国内出版社译出与国外出版社译入齐头并举的局面。然而,译出作品与译入作品在选题倾向和叙事类型上都存在差异,隐含着不同的传播意图。前者重宏大叙事,旨在塑造正面中国形象,后者重个体叙事,偏于揭秘与苦难书写。两组作品在英语世界的接受效果差异巨大,译出作品在英语世界传播不畅,译入作品被广泛阅读评论。整体来看,个体叙事类型的作品比宏大叙事类型的作品更容易被英语读者接受。从叙事类型入手选择文本向英语世界译介,或许是中国当代非虚构文学走进英语世界的可选之路。

关键词：中国当代非虚构文学英语世界译出译入