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Journal of Energy Chemistry 2024年第6期93卷 436-442,I0011页

作者： Xingrui Zhang Jian Zhang Wei Wang Boyuan Hu Yayu Dong debin xia Kaifeng Lin Yulin Yang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina

Here,a novel strategy is proposed targeting the volatility of A-site cations and the disordered arrangement of perovskite grains through employing Cs~+contained metal-organic frameworks In-aip(Cs)obtained by ion-exchange and crystalline *** forces between Cs-O atoms split the pore channels of the pristine In-aip,endowing In-aip(Cs)with multidimensional charge transport channels,In addition,the partially freed Cs~+in the interlayer compensates for the vacancy of A-site cations during the perovskite preparation *** In-aip(Cs)modified perovskite films have a flat morphology,large grains and excellent optoelectronic *** from the high-quality perovskite films and faster charge extraction,the In-aip(Cs)-modified PSCs achieved a champion PCE of 23.03%,superior to the In-aip-modified(22.29%)and control device(21.13%),More importantly,the unencapsulated PSCs modified with In-aip(Cs)exhibited outstanding humidity and thermal *** a period of almost 1000 h,the unencapsulated In-aip(Cs)-modified device retained 85%of its initial PCE after storing in a glove box at 85℃,and retained 87%of the primary PCE upon storage in ambient condition at 25℃under a humidity of 40%.

关键词： Metal-organic frameworks PSCs Stability Defect passivation

Heat diffusion optimization in high performance perovskite solar cells integrated with zeolite

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Journal of Energy Chemistry 2023年第11期86卷 308-317,I0007页

作者： Wei Wang Jian Zhang Kaifeng Lin Jiaqi Wang Boyuan Hu Yayu Dong debin xia Yulin Yang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina

Heat accumulation inside perovskite solar cells causes the decomposition of the perovskite layer and hole transport materials(HTMs)under working conditions,yielding a decrease in long-term ***,we present a zeolite-assisted heat conduction strategy by introducing economic zeolite crystals(e.g.,NaX,NaY,and ZSM-5)as a cooling filter to induce heat *** fitted thermal diffusion kinetic equation from real-time infrared thermal imaging technology reveals the zeolite skeleton assisted thermal co nduction mechanism of internal lattice ***,the nearly twofold improved conductivity of the modified HTM film is benefited from Na^(+)hopping on the supercages of the zeolite,therefore,the best-performed device with a rapid heat diffusion and defect inhibition obtains a remarkable power conversion efficiency of 23.42%.Both of NaX modified sprio-OMeTAD and PTAA based devices exhibit excellent operational stability after heating 1000 h at 85℃under N_(2)*** work demonstrates the potential application of economical porous zeolite materials in improving the thermal stability of PSCs.

关键词： Zeolite Heat diffusion Perovskite solar cells Operational stability

Tetra-phthalimide end-fused bifluorenylidene: Synthesis and characterization

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Chinese Chemical Letters 2019年第1期30卷 259-262页

作者： debin xia Fangyuan Zhang Zhigang Liu Linghao Meng Ruiqing Fan Yulin Yang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical Engineering Harbin Institute of Technology

A novel electron acceptor, namely, tetra-phthalimide end-fused bifluorenylidene(3 D-imide) was designed and synthesized. In comparison to its framework analogue 12,12'-bidibenzo[b,h]fluorenylidene(BF-3), the electron withdrawing capability and optical absorption were strengthened and enlarged,respectively. Moreover, photoluminescence quenching experiments were carried out, which confirmed 3D-imide could be a good candidate for nonfullene organic photovoltaics. Finally, we gained more insight into its electronic properties through density functional theory calculation.

关键词： Bifluorenylidene Polycycles Electron acceptor Twisting Three dimensional

Side chain modulated ferrocene derivative as the interstitial conductive medium for high-performance and stable perovskite solar cells

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Journal of Energy Chemistry 2024年第11期98卷 645-655页

作者： Boyuan Hu Jian Zhang Yulin Yang Yayu Dong Jiaqi Wang Wei Wang Xingrui Zhang Kaifeng Lin debin xia MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina School of Materials Science and Engineering East China Jiaotong UniversityNanchang 330013JiangxiChina

The interfacial nonradiative recombination loss caused by the deep traps and mismatched band alignment restrained the commercial viability of perovskite solar cells(PSCs). Herein, we have constructed ferrocene carboxylic acid(FcA) and octafluoropentyl-ferrocenyl-carboxylate(OFFcA) interstitial conductive mediums to modulate the integral heterointerface properties and the photovoltaic performances of *** comparing the passivation strengths of the two molecules, we found that the synergistic effects among Fc/Fc^(+)redox shuttle, C=O group, and F substituents realize the optimal elimination of interfacial trap sources. Electron-withdrawing F groups reinforce the capacity of the Fc/Fc^(+)redox shuttle for the healing of metallic Pb defects and provide extensive anchoring sites to stabilize the organic ***, the homogeneity of the OFFcA layer as well as the humidity stability of perovskite film are facilitated through the introduction of F substituents, which reduce the contact resistance and improve the interfacial charge transfer. The champion OFFcA-modified device delivers an exceptional PCE of 23.62%, exceeding those of the control(PCE=22.32%) and FcA-modified(PCE=23.06%) ***, the unencapsulated OFFcA-modified device retains 82.7% of the primary efficiency at 60%RH for more than 50 d and only loses less than 10% of the primary efficiency when stored in a glove box for more than 2000 h.

关键词： Perovskite solar cells Heterointerface energetic Defect elimination Synergistic effect Stability

Dual-functional POM@IL complex modulate hole transport layer properties and interfacial charge dynamics for highly efficient and stable perovskite solar cells

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Chinese Chemical Letters 2024年第7期35卷 461-464页

作者： Boyuan Hu Jian Zhang Yulin Yang Yayu Dong Jiaqi Wang Wei Wang Kaifeng Lin debin xia MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China

The severe interfacial charge recombination as well as the stability issues brought by the Li-TFSI still hinder the commercialization of high-performance perovskite solar cells(PSCs).Here,a polyoxometalates(POMs)-based complex,POM@ionic liquid(IL),is synthesized and applied as an effective additive that simultaneously enhances the performance and stability of *** interactions between POM@IL complex and Li-TFSI inhibit the aggregation of *** synergistic oxidation of POM@IL complex and Li-TFSI towards 2,2,7,7-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene(Spiro-OMeTAD)effectively enhances the electrical properties of hole transport layer film and the photovoltaic performances of *** champion device modified with the POM@IL complex yields an excellent power conversion efficiency(PCE)of 22.73%.Moreover,the incorporation of POM@IL improves the humidity stability of *** storing under high humidity conditions(25℃,60%RH)for 1200 h,the POM@IL modified device retained a remarkable 81.2%of its initial *** work provides new insight into constructing POMs-based materials for high-performance photovoltaic devices.

关键词： Polyoxometalates Ionic liquid Perovskite solar cells Energy alignment Humidity stability

Super rigid tris-spirobifluorenes:Syntheses and properties

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Chinese Chemical Letters 2021年第1期32卷 397-400页

作者： Luyao Zhao Chunbo Duan Dongxue Ding Shihui Liu debin xia Ying Guo Hui Xu Martin Baumgartend College of Chemical and Environmental Engineering.Horbin Universty of Science and Tetenologo Herbin 150040 China MIT Key Laboratory'of Crtcal Materials Technology for New Energy Conversion and Storge School of Chemisty and Chermical Engineering Harbin Instiute of Technology.Harbin 150001 China Key Laboratory of Functional lnorganic Material Chemistry Ministy of EducarionSchool of Chermistry and Materiol ScienceHeilongjiang UniversiyHarbin 150080China Max Planck Istitute for Pobymer Research Mainz 55128Cermpay

In this work,a blue emitter with a 3 D rigid structure composed of multiple spirobifluorene(3-Spiro) has been synthesized and *** a detailed study of the electrochemical and photophysical properties of 3-Spiro,we have evidenced that 3-Spiro can be applied as an active component of organic light-emitting diodes(OLEDs).The device with 5% doping rate of 4 CzPNPh exhibits high external quantum efficiency(EQE) of 11%,which proves the potential of 3 D rigid structure emitters for OLEDs.

关键词： OLEDs Spirobifluorene Blue emitter Rigid structure Three dimensional

A Fuzzy PID Algorithm for a Novel Miniature Spherical Robots with Three-dimensional Underwater Motion Control

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Journal of Bionic Engineering 2020年第5期17卷 959-969页

作者： Liwei Shi Yao Hu Shuxiang Su Shuxiang Guo Huiming Xing Xihuan Hou Yu Liu Zhan Chen Zan Li debin xia Key Laboratory of Convergence Medical Engineering System and Healthcare Technology the Ministry of Industry and Information TechnologySchool of Life ScienceBeijing Institute of TechnologyBeijing 100081China Faculty of Engineering Kagawa University2217-20 HayashichoTakamatsuKagawa 761-0396Japan

We proposed and developed a small bionic amphibious spherical robot system for tasks such as coastal environment monitoring and offshore autonomous search and *** third-generation bionic small amphibious spherical robots have many disadvantages,such as the lack of maneuverability and a small operating *** is difficult to accomplish underwater autonomous motion control with these ***,we proposed a fourth-generation amphibious spherical ***,the amphibious spherical robot developed in this project has a small and compact design,with limited sensors and external sensing *** means that the robot has weak external information collection *** need to make the real time operation of the robot's underwater motion control system more *** this paper,we mainly used a fuzzy Proportional-Integral-Derivative(PID)control algorithm to design an underwater motion control system for a novel ***,we compared PID with fuzzy PID control methods by carrying out experiments on heading and turning bow motions to verify that the fuzzy PID is more robust and exhibits good dynamic *** also carried out experiments on the three-dimensional(3D)motion control to validate the design of the underwater motion control system.

关键词： bionic amphibious spherical robot fuzzy PID control underwater motion control system underwater three-dimensional motion water-jet thruster

Benzothiophene and benzosulfone fused pyrazino[2,3-g]quinoxaline:Synthesis and semiconducting properties

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Chinese Chemical Letters 2023年第2期34卷 563-566页

作者： Fangwei Ding debin xia Xiping Ding Ruibin Deng Congwu Ge Yulin Yang Ruiqing Fan Kaifeng Lin Xike Gao MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001China Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules Shanghai Institute of Organic Chemistry Chinese Academy of SciencesShanghai 200032China

A novel air-stable n-type benzothiaphene endcapped azaarene(BTPQ) and its sulfonated derivative(BSPQ) were prepared via two pathways and characterized by NMR, UV–vis, fluorescence and cyclic voltammetry spectroscopy. Symmetrically introducing four nitrogen atoms into acenes, the semiconductor properties could be changed from p-type to n-type detected through the space charge limited current(SCLC) method. After sulfonation of BTPQ, BSPQ is with deeper frontier orbital energy levels and enhanced the electron mobility.

关键词： Azaarenes Deep LUMO levels n-type Organic semiconductor Polycyclic aromatic hydrocarbons

Metal-organic frameworks with mixed-ligands strategy as heterogeneous nucleation center to assist crystallization for efficient and stable perovskite solar cells

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Journal of Energy Chemistry 2023年第2期77卷 1-10,I0001页

作者： Yayu Dong Shuang Gai Jian Zhang Ruiqing Fan Boyuan Hu Wei Wang Wei Cao Jiaqi Wang Ke Zhu debin xia Lin Geng Yulin Yang MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001HeilongjiangChina

Deep-level defects and random oriented configuration in perovskite crystallization process would cause the nonradiative recombination and further affect the performance of perovskite solar cells(PSCs).Herein,two metal-organic frameworks(MOFs)with tunable Lewis-base passivation sites have been constructed(Cd-Httb and Cd-Httb-BDC,Httb=5-(4-(1H-1,2,4-triazole-1-yl)benzyl)-1h-tetrazole,BDC=1,4-dicarboxybenzene)to eliminate deep-level defects and simultaneously as nanostructured heterogeneous nucleation seed to assist the growth of large-grained perovskite *** with the control and Cd-Httb,Cd-Httb-BDC designed with mix-ligands strategy exhibited the enhanced inducted effect on the crystallization and nucleation of high-quality perovskite films during annealing ***,the resultant Cd-Httb-BDC-modified device achieved higher power conversion efficiency(PCE)(22.18%)than the control(20.89%)and Cd-Httb(21.56%).Meanwhile,the unencapsulated Cd-Httb-BDC-modified device still maintained 90%of initial PCE after 1500 h in ambient conditions and exhibited enhanced thermal stability(85℃ in N_(2) atmosphere).This work presented a successful example of mixligands strategy on construction of high-quality MOF-assisted perovskite films for high-efficient and stable PSCs.

关键词： Perovskite solar cells Metal organic frameworks Mixed ligands strategy Passivation Stability

NEATmap: a high-efficiency deep learning approach for whole mouse brain neuronal activity trace mapping

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National Science Review 2024年第5期11卷 202-216页

作者： Weijie Zheng Huawei Mu Zhiyi Chen Jiajun Liu debin xia Yuxiao Cheng Qi Jing Pak-Ming Lau Jin Tang Guo-Qiang Bi Feng Wu Hao Wang AHU-IAI AI Joint Laboratory Anhui University Anhui Province Key Laboratory of Biomedical Imaging and Intelligent Processing Institute of Artificial IntelligenceHefei Comprehensive National Science Center National Engineering Laboratory for Brain-inspired Intelligence Technology and Application School of Information Science and TechnologyUniversity of Science and Technology of China Division of Life Sciences and Medicine University of Science and Technology of China Interdisciplinary Center for Brain Information Brain Cognition and Brain Disease InstituteShenzhen-Hong Kong Institute of Brain Science-Shenzhen Fundamental Research Institutions Shenzhen Institute of Advanced Technology Chinese Academy of Sciences

Quantitative analysis of activated neurons in mouse brains by a specific stimulation is usually a primary step to locate the responsive neurons throughout the brain. However, it is challenging to comprehensively and consistently analyze the neuronal activity trace in whole brains of a large cohort of mice from many terabytes of volumetric imaging data. Here, we introduce NEATmap, a deep learning–based high-efficiency,high-precision and user-friendly software for whole-brain neuronal activity trace mapping by automated segmentation and quantitative analysis of immunofluorescence labeled c-Fos+neurons. We applied NEATmap to study the brain-wide differentiated neuronal activation in response to physical and psychological stressors in cohorts of mice.

关键词： whole-brain imagingneuronal activity trace mapping deep learning quantitative analysis