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Phase-stable wide-bandgap perovskites enabled by suppressed ion migration

Journal of Energy Chemistry 2024年第9期96卷 120-128页

作者： Zhiyu Gao Yu Zhu Jingwei Zhu Cong Chen Zongjin Yi Yi Luo Yuliang Xu Kai Wu Tianshu Ma Fangfang Cao Zijun Chen Fang Yao Juncheng Wang Wenwu Wang Chuanxiao Xiao Hao Huang Hongxiang Li Qianqian Lin Pei Cheng Changlei Wang Xia Hao Guanggen Zeng Dewei Zhao College of materials Science and engineering&Institute of New Energy and Low-Carbon Technology&engineering research center of Alternative Energy materials and devices Ministry of EducationSichuan UniversityChengdu 610065SichuanChina School of Optoelectronic Science and engineering&Collaborative Innovation center of Suzhou Nano Science and Technology Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province&Key Lab of Modern Optical Technologies of Education Ministry of ChinaSoochow UniversitySuzhou 215006JiangsuChina Ningbo Institute of materials Technology and engineering Chinese Academy of SciencesNingbo 315201ZhejiangChina Ningbo New materials Testing and Evaluation center Co.Ltd Ningbo 315201ZhejiangChina State Key Laboratory of Featured Metal materials and Life-cycle Safety for Composite Structure&School of Resources Environment and MaterialsGuangxi UniversityNanning 530004GuangxiChina Key Lab of Artificial Micro-and Nano-Structures of Ministry of Education of China School of Physics and TechnologyWuhan UniversityWuhan 430072HubeiChina College of Polymer Science and engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065SichuanChina

Wide-bandgap(>1.7 eV)perovskites suffer from severe light-induced phase segregation due to high bromine content,causing irreversible damage to devices ***,the strategies of suppressing photoinduced phase segregation and related mechanisms have not been fully ***,we report a new passivation agent 4-aminotetrahydrothiopyran hydrochloride(4-ATpHCl)with multifunctional groups for the interface treatment of a 1.77-eV wide-bandgap perovskite film.4-ATpH^(+)impeded halogen ion migration by anchoring on the perovskite surface,leading to the inhibition of phase segregation and thus the passivation of defects,which is ascribed to the interaction of 4-ATpH^(+)with perovskite and the formation of low-dimensional ***,the champion device achieved an efficiency of 19.32%with an open-circuit voltage(V_(OC))of 1.314 V and a fill factor of 83.32%.Moreover,4-ATpHCl modified device exhibited significant improved stability as compared with control *** target device maintained 80%of its initial efficiency after 519 h of maximum power output(MPP)tracking under 1 sun illumination,however,the control device showed a rapid decrease in efficiency after 267 ***,an efficiency of 27.38%of the champion 4-terminal all-perovskite tandem solar cell was achieved by mechanically stacking this wide-bandgap top subcell with a 1.25-eV low-bandgap perovskite bottom subcell.

关键词： Wide-bandgap perovskite Phase segregation lon migration Interface post-treatment All-perovskite tandems

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Superparamagnetic iron oxide nanoparticle regulates microbiota-gut-inner ear axis for hearing protection

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National Science Review 2024年第6期11卷 273-284页

作者： Zhanhang Guo Yunhao Wu Bo Chen Mengdie Kong Peng Xie Yan Li Dongfang Liu Renjie Chai Ning Gu Jiangsu Key Laboratory for Biomaterials and devices School of Biological Science and Medical EngineeringSoutheast University Medical Science and Technology Innovation center Shandong First Medical University &Shandong Academy of Medical Sciences State Key Laboratory of Digital Medical engineering Department of Otolaryngology Head and Neck SurgeryZhongda HospitalSchool of Life Sciences and Technology School of Medicine Advanced Institute for Life and Health Jiangsu Province High-Tech Key Laboratory for Bio-Medical ResearchSoutheast University Institute of materials Science and devices School of Materials Science and Engineering Suzhou University of Science and Technology Nurturing center of Jiangsu Province for State Laboratory of AI Imaging &Interventional Radiology & Vascular Surgery Department of Radiology Medical School Zhongda Hospital Southeast University Co-Innovation center of Neuroregeneration Nantong University School of Medical Technology Institute of Engineering MedicineBeijing Institute of Technology Department of Otolaryngology Head and Neck Surgery Sichuan Provincial People's HospitalUniversity of Electronic Science and Technology of China Institute for Stem Cell and Regeneration Chinese Academy of Sciences Southeast university Shenzhen research institute Cardiovascular Disease research center Nanjing Drum Tower Hospital Affiliated Hospital of Medical School Medical School Nanjing University

Noise-induced hearing loss(NIHL) is a highly prevalent form of sensorineural hearing damage that has significant negative effects on individuals of all ages and there are no effective drugs approved by the US Food and Drug Administration. In this study, we unveil the potential of superparamagnetic iron oxide nanoparticle assembly(SPIOCA) to reshape the dysbiosis of gut microbiota for treating NIHL. This modulation inhibits intestinal inflammation and oxidative stress responses, protecting the integrity of the intestinal barrier. Consequently, it reduces the transportation of pathogens and inflammatory factors from the bloodstream to the cochlea. Additionally, gut microbiota-modulated SPIOCA-induced metabolic reprogramming in the gut–inner ear axis mainly depends on the regulation of the sphingolipid metabolic pathway, which further contributes to the restoration of hearing function. Our study confirms the role of the microbiota–gut–inner ear axis in NIHL and provides a novel alternative for the treatment of NIHL and other microbiota dysbiosis-related diseases.

关键词： superparamagnetic iron oxide nanoparticle hearing loss gut microbiota inflammation sphingolipid metabolism microbiota–gut–inner ear axis

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A three-dimensional co-continuous network structure polymer electrolyte with efficient ion transport channels enabling ultralong-life all solid-state lithium metal batteries

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Journal of Energy Chemistry 2024年第7期94卷 635-645页

作者： Meng Wang Hu Zhang Yewen Li Ruiping Liu Huai Yang School of Chemical&Environmental engineering China University of Mining and Technology(Beijing)Beijing 100083China Beijing Advanced Innovation center for materials Genome engineering&School of materials Science and engineering Peking UniversityBeijing 100871China

Solid polymer electrolytes(SPEs)have emerged as one of the most promising candidates for the construction of solid-state lithium batteries due to their excellent flexibility,scalability,and interface compatibility with ***,a novel all-solid polymer electrolyte(PPLCE)was fabricated by the copolymer network of liquid crystalline monomers and poly(ethylene glycol)dimethacrylate(PEGDMA)acts as a structural frame,combined with poly(ethylene glycol)diglycidyl ether short chain interspersed serving as mobile ion transport *** preparaed PPLCEs exhibit excellent mechanical property and out-standing electrochemical performances,which is attributed to their unique three-dimensional cocontinuous structure,characterized by a cross-linked semi-interpenetrating network and an ionic liquid phase,resulting in a distinctive nanostructure with short-range order and long-range ***,the addition of PEGDMA is proved to be critical to the comprehensive performance of the PPLCEs,which effectively modulates the microscopic morphology of polymer networks and improves the mechanical properties as well as cycling stability of the solid *** used in a lithiumion symmetrical battery configuration,the 6 wt%-PPLCE exhibites super stability,sustaining operation for over 2000 h at 30 C,with minimal and consistent overpotential of 50 *** resulting Li|PPLCE|LFP solid-state battery demonstrates high discharge specific capacities of 160.9 and 120.1 mA h g^(-1)at current densities of 0.2 and 1 C,*** after more than 300 cycles at a current density of 0.2 C,it retaines an impressive 73.5%***,it displayes stable cycling for over 180 cycles at a high current density of *** super cycle stability may promote the application for ultralong-life all solid-state lithium metal batteries.

关键词： Solid-state electrolyte Lithium-metal batteries Liquid crystalline polymer Copolymer 3D co-continuous structure Long cycle stability

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MoP nanoparticles encapsulated in N-doped carbon nanotubes as sulfur host for advanced lithium-sulfur batteries

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Nano research 2024年第4期17卷 2736-2745页

作者： Guozhi Wu Shanqing Li Zheng Chen Ajiao Sun Jie Yang Sang Woo Joo Jiarui Huang Key Laboratory of Functional Molecular Solids of the Ministry of Education Anhui Laboratory of Molecule-Based MaterialsCollege of Chemistry and Materials ScienceAnhui Normal UniversityWuhu 241002China Anhui engineering research center of highly Reactive Micro-Nano Powders School of Materials and Environmental engineeringChizhou UniversityChizhou 247000China School of Mechanical engineering Yeungnam UniversityGyeongsanGyeongbuk 38541Republic of Korea

The low electrical conductivity of sulfur,strong volume expansion,shuttle effect,and sluggish redox reactions in Li-S batteries limit their practical *** nanoparticles encapsulated in nitrogen-doped carbon nanotubes(MoP/NC NTs)were synthesized using MoO_(3) nanorods as templates via a polypyrrole coating,heat-carbonization,MoO_(3) partial reduction,ammonia washing,and *** MoP/NC NTs had a hollow nanostructure with a high specific surface area,which can alleviate the volume expansion of the cathode and the shuttle effect of *** encapsulated MoP nanoparticles can anchor the polysulfides and enhance the redox reaction ***,the MoP/NC NTs combined with sulfur(MoP/S/NC NTs)exhibited 440.8 mAh·g^(-1) over 500 cycles at 1.0 A·g^(-1) with a decay rate of 0.06%per *** density functional theory calculations and X-ray photoelectron spectroscopy results confirmed that MoP/NC NTs could anchor polysulfides and alleviate the shuttle effect by chemical *** study supplies a novel route to prepare nanoparticle-embedded in N-doped carbon nanotubes for advanced Li-S battery.

关键词： MoP N-doped carbon nanotube lithium-sulfur battery cathode

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Methylthio side-chain modified quinoidal benzo-[1,2-b:4,5-b']dithiophene derivatives for high-performance ambipolar organic field-effect transistors

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Science China Chemistry 2024年第10期67卷 3357-3365页

作者： Li Chen Xiaoqi Luo Nuoya Li Shaoqian Peng Qing Jiang Di Wu Jianlong Xia State Key Laboratory of Advanced Technology for materials Synthesis and Processing Center of Smart Materials and DevicesWuhan University of TechnologyWuhan 430070China School of Chemistry Chemical Engineering and Life ScienceWuhan University of TechnologyWuhan 430070China Department of Chemistry National University of SingaporeSingapore 117543Singapore

Quinoidal small molecule semiconductors hold huge potential in ambipolar organic field-effect transistors(OFETs)and organic spintronic ***,two quinoidal molecules with methylthio side chains were synthesized to develop molecular semiconductors with high ambipolar mobility,designated QBDTS and *** theoretical calculation results reveal that QBDTS has a closed-shell structure while QTBDTS showed an open-shell structure with a biradical character(y0)of 0.46 and its magnetic properties were further investigated using electron paramagnetic resonance(EPR)and superconducting quantum interference device(SQUID)*** methyl side chains showed a large impact on the molecular orbital *** HOMO/LUMO levels of QBDTS and QTBDTS were measured to be-5.66/-4.56 and-5.27/-4.48 eV,respectively,which are favorable for ambipolar charge transport in ***,the spin-coated QBDTS displayed hole and electron mobilities of 0.01 and 0.5 cm^(2)V^(-1)s^(-1)while QTBDTS showed a record high hole mobility of 1.8 cm^(2)V^(-1)s^(-1)and electron mobility of 0.3 cm^(2)V^(-1)s^(-1).Moreover,comparative studies of the thin film morphologies also manifested the beneficial influence of methyl side chains on film crystallinity and molecule *** results strongly proved that methyl side chain engineering can be a simple but efficient strategy for modulating electronic properties and molecular stacking *** work also represents a big advancement for quinoidal molecular semiconductors in ambipolar OFET applications.

关键词： side-chain modification quinoidal molecules ambipolar diradicals organic field-effect transistors

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Self-polarized RGB device realized by semipolar micro-LEDs and perovskite-in-polymer films for backlight applications

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Opto-Electronic Advances 2024年第3期7卷 35-49页

作者： Tingwei Lu Yue Lin Tianqi Zhang Yue Huang Xiaotong Fan Shouqiang Lai Yijun Lu Hao-Chung Kuo Zhong Chen Tingzhu Wu Rong Zhang School of Electronic Science and engineering Fujian Engineering Research Center for Solid-State LightingXiamen UniversityXiamen 361005China Innovation Laboratory for Sciences and Technologies of Energy materials of Fujian Province(IKKEM) Xiamen 361005China Department of Photonics and Graduate Institute of Electro-Optical engineering College of Electrical and Computer EngineeringYang Ming Chiao Tung UniversityHsinchu 30010China Semiconductor research center Hon Hai Research InstituteTaipei 11492China.

In backlighting systems for liquid crystal displays,conventional red,green,and blue(RGB)light sources that lack polarization properties can result in a significant optical loss of up to 50%when passing through a *** address this inefficiency and optimize energy utilization,this study presents a high-performance device designed for RGB polarized *** device employs an array of semipolar blueμLEDs with inherent polarization capabilities,coupled with mechanically stretched films of green-emitting CsPbBr3 nanorods and red-emitting CsPbI3-Cs4PbI6 hybrid *** CsPbBr3 nanorods in the polymer film offer intrinsic polarization emission,while the aligned-wire structures formed by the stable CsPbI3-Cs4PbI6 hybrid nanocrystals contribute to substantial anisotropic emissions,due to their high dielectric *** resulting device achieved RGB polarization degrees of 0.26,0.48,and 0.38,respectively,and exhibited a broad color gamut,reaching 137.2%of the NTSC standard and 102.5%of the Rec.2020 *** compared to a device utilizing c-plane LEDs for excitation,the current approach increased the intensity of light transmitted through the polarizer by 73.6%.This novel fabrication approach for polarized devices containing RGB components holds considerable promise for advancing next-generation display technologies.

关键词： halide perovskite light-emitting-diodes polarized emission nanocrystals stability

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Acceptor-planarized typeⅠphotosensitizer for lipid droplet-targeted two-photon photodynamic therapy by ferroptosis

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Science China Chemistry 2024年第7期67卷 2392-2402页

作者： Jie Sha Weimin Liu Jiasheng Wu Yanping Wang Xuewei Li Haohui Ren Zhi Pang Wenjun Zhang Chun-Sing Lee Pengfei Wang Key Laboratory of Photochemical Conversion and Optoelectronic materials CityU-CAS Joint Laboratory of Functional Materials and DevicesTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China center of Super-Diamond and Advanced Films&Department of materials Science and engineering City University of Hong KongHong KongChina

Two-photon photodynamic therapy(TP-PDT)has garnered significant attention because of its excellent depth of tissue penetration and high spatiotemporal ***,the limited targeting ability and oxygen dependency of photosensitizers(PSs)significantly hinder the effectiveness of photodynamic therapy in hypoxic tumor ***,we designed and synthesized two lipid droplet(LD)-targeted two-photon PSs(TBPCP and TBCP)by reducing benzene rings to achieve“acceptor planarization”.Notably,acceptor planarization not only enhanced the intramolecular charge transfer but also transferred the photochemical reaction from typeⅡ(TBPCP)to typeⅠ(TBCP).Under the irradiation of 940 nm femtosecond pulsed laser,TBPCP and TBCP showed bright two-photon-excited fluorescence and excellent LD targeting in living *** TBPCP(typeⅡPS),the outstanding TP-PDT efficacy of TBCP(typeⅠPS)under hypoxic conditions could be obtained in both cellular experiments and multicellular tumor spheroids(MCTS)***,both TBPCP and TBCP could induce the lipid peroxidation in the typeⅠor typeⅡPDT due to the location of LD,depleting GSH and inactivating GPX4 to induce nonprogrammed ferroptosis in cells.

关键词： two-photon photodynamic therapy lipid droplet targeting acceptor planarization hypoxia tumor ferroptosis

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Work-function effect of Ti_(3)C_(2)/Fe-N-C inducing solid electrolyte interphase evolution for ultra-stable sodium storage

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Nano research 2024年第8期17卷 7163-7173页

作者： Huicong Xia Lingxing Zan Hongliang Dong Yifan Wei Yue Yu Jinfu Shu Jia-Nan Zhang Chong-Xin Shan Key Laboratory of Advanced Energy Catalytic and Functional Material Preparation of Zhengzhou College of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China Key Laboratory of materials Physics of Ministry of Education School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450001China Key Laboratory of Chemical Reaction engineering of Shaanxi Province College of Chemistry and Chemical EngineeringYan’an UniversityYan’an 716000China center for high Pressure Science and Technology Advanced research PudongShanghai 201203China Key Laboratory of Advanced Energy materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

In the quest to enhance the efficiency of sodium-ion batteries,the dynamics of solid electrolyte interphase(SEI)formation are of paramount *** SEI layer’s integrity is integral to the charge–discharge efficiency and the overall longevity of the ***,a novel two-dimensional Ti_(3)C_(2) fragments enmeshed on iron-nitrogen-carbon(Fe-N-C)nanosheets(Ti_(3)C_(2)/Fe-NC)has been *** electrode features a matrix which has been shown to expedite SEI layer formation through the facilitation of selective anion adsorption,thus augmenting battery *** functional theory calculation reveals that the SEI evolution energy of NaPF6 at the Ti_(3)C_(2)/Fe-N-C interface is 0.81 eV,significantly lower than the Ti_(3)C_(2)(1.23 eV).This process is driven by the electron transportation from Ti_(3)C_(2) to Fe-N-C substrate,facilitated by their work-function difference,leading to the formation of ferromagnetic Fe species,which possesses Fe 3d d_(xz)d_(z)2 orbitals and undergoes hybridization with theπandσorbitals of NaF,creating a key intermediate during *** process diminishes the antibonding energy and attenuates the orbital interaction with NaF,thus reducing the activation energy and improving the SEI formation reaction ***,it leads to the creation of multi-interface SEI characterized by high-throughput ion transport and an efficient reaction network.

关键词： Ti_(3)C_(2)/Fe-N-C heterostructure work-function electron interaction solid electrolyte interphase sodium storage

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Vanadyl Sulfate Based Hole-Transporting Layer Enables Efficient Organic Solar Cells

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Chinese Journal of Chemistry 2024年第14期42卷 1644-1650页

作者： Mengdi Li Yuqing Sun Yang Cheng Chaowei Zhao Jicai Zhang Weiwei Li research center for Optoelectronic materials and devices School of Physical Science and TechnologyGuangxi UniversityNanningGuangxi530004 China Institute of Applied Chemistry Jiangxi Academy of SciencesNanchangJiangxi330096 China Beijing Advanced Innovation center for Soft Matter Science and engineering&State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical TechnologyBeijing100029 China

It remains an urgent task to develop alternative hole-transporting layer(HTL)materials beyond commonly used PEDOT:PSS to increase the shelf-life of organic solar cells(OSCs).Inorganic metal oxide type materials,such as NiO_(x),CoO_(x)and VO_(x),with suitable work functions have attracted numerous research attention *** this work,more abundant and easily accessible oxygenated salt,vanadyl sulfate(VOSO_(4))has been demonstrated to be excellent choice as HTL for *** VOSO_(4)-based HTL can be readily processed by spin-coating from the precursor solution with subsequent thermal annealing and UVO *** a consequence,a high power conversion efficiency(PCE)of 18.72%can be achieved for PM8:L8-BO based OSCs with the VOSO_(4)-based *** transmittance,smooth film surface,suitable energy level and high conductivity were revealed to contribute to the high OSC *** importantly,compared to device with PEDOT:PSS,VOSO_(4)-based OSCs exhibit improved stability when stored in the N_(2)filled glove *** being stored for 600 h,VOSO_(4)-based device can retain 89%of its initial ***,VOSO_(4)can be used as general HTL in PM6:BTP-BO-4Cl and PM6:IT-4F based OSCs,yielding high PCEs of 17.87%and 13.85%,respectively.

关键词： Organic solar cells Semiconductors Hole-transporting layers Vanadyl sulfate Power output Efficiency Vanadium Interfacial modification

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Enhancement of–OH content on mechanical properties of antiperovskite solid electrolytes

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Nano research 2024年第7期17卷 6139-6146页

作者： Zunqiu Xiao Huaying Wang Ningyuan Cai Yutong Li Kejia Xiang Wei Wei Tao Ye Zhongtai Zhang Shitong Wang Zilong Tang State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing 100084China College of New Energy Advanced Chemical Engineering and Energy Materials Research CenterChina University of Petroleum(East China)Qingdao 266580China Department of Nuclear Science and engineering Massachusetts Institute of TechnologyCambridgeMA 02139USA

All-solid-state batteries,renowned for their enhanced safety and high energy density,have garnered broad *** solid electrolytes are highly anticipated for their balanced ***,their high Young’s modulus and inadaptability to volume change during cycling lead to poor contact and eventual battery *** this work,Young’s modulus of Li_(1+x)(OH)_(x)Cl samples is lowered to a level comparable to that of sulfide by regulating the–OH *** the–OH content increases,Young’s modulus of Li_(1+x)(OH)_(x)Cl samples decreases *** may be due to the local aggregation of–OH groups,forming cavities similar to LiOH structure,which reduces the bonding of the *** the premise of high Li-ion conductivity and electrochemical stability,the lowered Young’s modulus improves the contact between the solid electrolyte and the electrodes,forming a strong and stable interfacial layer,thereby improving interfacial and cycling *** symmetrical lithium metal cell shows excellent cycle performance of 600 h,and the assembled LiFePO_(4)|Li_(2.4)(OH)1.4Cl|Li cell shows significantly enhanced cycling endurance with 80%capacity retention after 150 *** work not only emphasizes the crucial importance of Young’s modulus in improving interface issues but also offers innovative approaches to advance the mechanical properties of solid electrolytes.

关键词： mechanical properties -OH content anti-perovskite solid electrolytes Li-ion batteries

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