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boosting charge extraction and efficiency of inverted perovskite solar cells through coordinating group modification at the buffer layer/cathode interface

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Nano Research 2025年第1期18卷 415-423页

作者： Zhiqing Liang Ziqiu Ren Ziyu Wang Nan yan Ling Li bo Zhang yanlin song College of Chemistry Zhengzhou UniversityZhengzhou 450052China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of Sciences(ICCAS)Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyNational Laboratory for Molecular Sciences(BNLMS)Beijing 100190China

In inverted perovskite solar cells (PSCs),effective modification of the interface between the metalcathode and electron transport layer (ETL) is crucial forachieving high performance and stability. Herein, sulfonatedbathocuproine, commonly known as disodium bathocuproinedisulfonate (BCDS), was employed as a cathode buffer layerto address the interfacial issues at the [6,6]-phenyl-C61-butyricacid methyl ester (PCBM)/Ag interface. BCDS possesses theability to form coordinate bonds with Ag electrodes. Theutilization of the BCDS buffer layer enhanced the chargeextraction capability at the cathode interface whilesimultaneously achieving interfacial defect passivation,improving interfacial contact and increasing the built-in electricfield. Consequently, a power conversion efficiency (PCE) of25.06% was achieved. Furthermore, owing to the excellent filmforminguniformity of BCDS on PCBM, the stability of thedevice was also improved. After storage in dry air for morethan 2000 h, the device maintained 96% of its initial efficiency. This work underscores the remarkable potential of tailoringcoordination groups to enhance charge extraction efficiency at the ETL-cathode interface, unveiling a promising newfrontier in buffer layer development and performance optimization strategies for PSCs.

关键词： perovskite solar cells buffer layer bathocuproine disulfonate coordination group modification electron transport layer(ETL)-cathode interface

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Comparative study of performance comparison of AlSi10Mg alloy prepared by selective laser melting and casting

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Journal of Materials Science & Technology 2020年第6期41卷 199-208页

作者： qian yan.bo song Yusheng Shi State Key Laboratory of Materials Processing and Die&Mould Technology Huazhong University of Science and TechnologyWuhan430074China

The influence of the microstructure on mechanical properties of AlSi10Mg fabricated by casting and selective laser melting(SLM)were investigated and contrasted in this work,with an emphasis on understanding the forming *** microstructure,phase structure and mechanical properties were characterized by scanning electron microscopy/field-emission Transmission Electron Microscopy(SEM/TEM),X-Ray Diffraction(XRD),tensile and fatigue *** results indicated that the SLM AlSi10Mg exhibited a supersaturated Si network structure precipitated alongα-Al ***β-Al5FeSi andπ-Al8FeMg3Si6 phases were found in the as-cast and SLM AlSi10Mg respectively due to different thermal histories during *** SLM AlSi10Mg showed higher tensile strength but lower elongation than the casting,as the result of grain refinement and tortuous crack *** fatigue results revealed that unmelted powder,oxide inclusion and pores can considerably degrade the fatigue properties for the SLM *** SLM process offered a new method for material processing that would avoid harmful Fe-bearing intermetallic compounds and refine the microstructures for enhancing strength.

关键词： Selective laser melting Casting AlSi10Mg Intermetallic compound Mechanical properties

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Mechanism of action of Linggui Zhugan Decoction in treating non-alcoholic fatty liver disease using untargeted metabolomics approach

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Traditional Medicine Research 2025年第2期10卷 65-76页

作者： Huan Pei Ren-Lin Li Xin-Ran song qian-qian Wan Yu-Ming Wang Han-Zhou Li Wei-Quan Xu Jia-Bao Liao Wei-bo Wen Jing Miao Huan-Tian Cui School of Basic Medicine Yunnan University of Chinese MedicineKunming 650599China School Clinical Medical College Yunnan University of Chinese MedicineKunming 650599China First School of Clinical Medicine Yunnan University of Chinese MedicineKunming 650599China School of Integrative Chinese and Western Medicine Tianjin University of Traditional Chinese MedicineTianjin 301617China Department of Pharmacy Tianjin Second People's HospitalTianjin 300192China

Background:Non-alcoholic fatty liver disease(NAFLD)is a liver disorder characterized by the accumulation and degeneration of fat in the liver cells,a condition that may further deteriorate and lead to cirrhosis and liver *** studies showed that metabolic dysfunction can promote NAFLD *** Zhugan Decoction(LGZGD)has therapeutic effects on *** mechanism of LGZGD still remains *** study was to examine the impact of LGZGD on the metabolic processes involved in the development of ***:A mice model of NAFLD was treated with *** therapeutic potential of LGZGD was evaluated by assessing the activity of transaminases,lipids levels of blood,and pathological changes in the liver of the mice model of ***,this study also evaluated the influence of LGZGD on liver inflammation and oxidative ***:The results of untargeted metabolomics analysis showed that LGZGD reduced the disordered lipid metabolism in NAFLD *** improved the oxidative stress and also reduced the levels of pro-inflammatory cytokines in the *** metabolomics analysis of liver samples revealed that LGZGD treatment improved metabolic disorders,including alanine,aspartate,glutamate,glycerophospholipid metabolism,and citrate *** RT-qPCR and Western blot results showed that LGZGD could regulate the expression of key enzymes in the metabolic pathway of the citrate cycle,including ATP-citrate lyase(ACLY),alanine-glyoxylate aminotransferase-2(AGXT2),phosphatidylethanolamine N-methyltransferase(PEMT),and succinate dehydrogenase(SDH).Conclusion:We found that LGZGD can treat NAFLD by reducing inflammatory responses,inhibiting oxidative stress,regulating alanine,aspartate,glutamate,and glycerophospholipid metabolism,and citrate cycle pathways.

关键词： NAFLD LGZGD untargeted metabolomics glycerophospholipid metabolism citrate cycle

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Perfect optomechanically induced transparency in two-cavity optomechanics

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Frontiers of physics 2023年第5期18卷 245-253页

作者： Lai-Bin qian Xiao-bo yan School of Physics and Electronic Engineering Northeast Petroleum UniversityDaqing 163318China

Here,we study the controllable optical responses in a two-cavity optomechanical system,especially on the perfect optomechanically induced transparency(OMIT)in the model which has never been studied *** results show that the perfect OMIT can still occur even with a large mechanical damping rate,and at the perfect transparency window the long-lived slow light can be *** addition,we find that the conversion between the perfect OMIT and optomechanically induced absorption can be easily achieved just by adjusting the driving field strength of the second *** believe that the results can be used to control optical transmission in modern optical networks.

关键词： perfect optomechanically induced transparency slow light optomechanically induced absorption cavity optomechanics

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Two-weight Norm Inequalities for Local Fractional Integrals on Gaussian Measure Spaces

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Acta Mathematica Sinica,English Series 2022年第7期38卷 1203-1228页

作者： bo Ning DI qian Jun HE Dun yan yan School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049P.R.China School of Applied Science Beijing Information Science and Technology UniversityBeijing 100192P.R.China

In this paper,the authors establish the two-weight boundedness of the local fractional maximal operators and local fractional integrals on Gaussian measure spaces associated with the local *** precisely,the authors first obtain the two-weight weak-type estimate for the locala fractional maximal operators of orderαfrom L^(p)(v)to L^(q,∞)(u)with 1≤p≤qa A_(p,q,a)^(b') ,and then obtain the two-weight weak-type estimate for the local fractional *** addition,the authors obtain the two-weight strong-type boundedness of the local fractional maximal operators under a condition of(u,v)∈M_(p,q,a)^(6a+9√da^2) and the two-weight strong-type boundedness of the local fractional *** estimates are established by the radialization method and dyadic approach.

关键词： Local fractional integral local fractional maximal operator two-weight inequality Gaussian measure space

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Lightweight,self-cleaning and refractory FeCo@MoS_(2)PVA aerogels:from electromagnetic wave-assisted synthesis to flexible electromagnetic wave absorption

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Rare Metals 2023年第4期42卷 1294-1305页

作者： Sai-bo qian Guang Liu Mi yan Chen Wu School of Materials Science and Engineering State Key Laboratory of Silicon MaterialsZhejiang UniversityHangzhou310027China

The emergence of wearable and foldable electronic devices urges advanced electromagnetic(EM)wave absorbers with maintained performance under *** FeCo@MoS_(2)poly vinyl alcohol(PVA)aerogels have been fabricated with the assistance of EM waves for simultaneous splitting of the MoS_(2)flakes and dispersive growth of FeCo *** resultants in-return have been used for EM wave absorption with excellent performance,providing minimum reflection loss(RL_(min))of-40.7 dB and a broad effective absorption bandwidth(EAB)of 6.4 GHz at a thickness of 2.5 ***-time compression has been introduced to reveal the evolution of EM *** aerogels maintain satisfactory performance even under 50%compression due to the balance of impedance matching and *** the deterioration of impedance matching,the attenuation is significantly enhanced due to both strengthened conductive loss and magnetic *** addition,features such as lightweight,self-cleaning and refractory can be achieved for the aerogels for applications in complex *** such this work not only provides a versatile synthetic route assisted by EM wave energy,but also insights on the evolution of absorption performance under deformation together with the design strategy of multifunctional flexible wave absorbers.

关键词： Electromagnetic(EM)wave assistance Multifunctional aerogels Deformative wave absorption Impedance matching Conductive loss Magnetic loss

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Nicotinamide mononucleotide supplementation improves the quality of porcine oocytes under heat stress

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Journal of Animal Science and Biotechnology 2022年第5期13卷 1326-1339页

作者： Meijie song Yu Li Yihang Zhou Jiner yan Xiaohua Zhou qian Gao Yilong Miao bo Xiong College of Animal Science and Technology Nanjing Agricultural UniversityNanjing 210095China College of Veterinary Medicine Nanjing Agricultural UniversityNanjing 210095China

Background:Elevated ambient temperature-caused heat stress is a major concern for livestock production due to its negative impact on animal feed intake,growth,reproduction,and ***,the germ cells are extremely sensitive to the heat ***,the effective approach and strategy regarding how to protect mammalian oocytes from heat stress-induced defects have not been ***:Germinal vesicle(GV)porcine oocytes were cultured at 41.5℃ for 24 h to induce heat stress,and then cultured at 38.5℃ to the specific developmental stage for subsequent *** mononucleotide(NMN)was dissolved in water to 1 mol/L for a stock solution and further diluted with the maturation medium to the final concentrations of 10μmol/L,20μmol/L,50μmol/L or 100μmol/L,respectively,during heat *** and fluorescence intensity quantification were applied to assess the effects of heat stress and NMN supplementation on the key processes during the oocyte meiotic ***:Here,we report that NMN supplementation improves the quality of porcine oocytes under heat ***,we found that heat stress resulted in oocyte maturation failure by disturbing the dynamics of meiotic organelles,including the cytoskeleton assembly,cortical granule distribution and mitochondrial *** addition,heat stress induced the production of excessive reactive oxygen species(ROS)and DNA damage,leading to the occurrence of apoptosis in oocytes and subsequent embryonic development *** importantly,we validated that supplementation of NMN during heat stress restored the meiotic defects during porcine oocyte ***:Taken together,our study documents that NMN supplementation is an effective approach to improve the quality of oocytes under heat stress by promoting both nuclear and cytoplasmic maturation.

关键词： Heat stress Meiotic defects Nicotinamide mononucleotide Oocyte quality Porcine oocytes

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Risk factors for Clostridioides difficile infection in children and adolescents with inflammatory bowel disease: a systematic review and meta-analysis

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World Journal of Pediatrics 2022年第1期18卷 27-36页

作者： Sheng-bo Fang yan-Qing song Chun-yan Zhang Li-bo Wang Department of Pharmacy First Hospital of Jilin UniversityChangchunChina Department of Pediatric Gastroenterology Unit First Hospital of Jilin University71 Xinmin StreetChangchun130021China

Background Risk factors and consequences associated with Clostridioides difficile infection(CDI)in children and adolescents with inflammatory bowel disease(IBD)are still *** conduct a systematic review and meta-analysis to assess risk factors and outcomes associated with CDI in children and adolescents with *** PubMed,EMBASE and Cochrane Library databases were searched from inception to 24th February,*** investigating risk factors,bowel surgery rate in pediatric IBD patients with and without CDI were ***-effects model was used for calculating summary ***–Ottawa scale(NOS)was used for quality *** Fourteen studies,comprising 17,114 patients,were *** was a significant association between 5-aminosalicylic acid(5-ASA)use and CDI[odds ratio(OR)=1.95,95%confidence interval(CI)1.26–3.03],with minimal heterogeneity(I^(2)=0.00%).Increased risk of active disease(OR=4.66,95%CI 2.16–10.07)were associated with CDI in those studies performed in high quality score(NOS>6)and significantly higher CDI rates in studies conducted outside USA(OR=2.94,95%CI 1.57–5.58).The bowel surgery rate in IBD with CDI was 3.8–57.1%,compared to that in IBD without CDI(0–21.3%).All studies were of moderate to high *** 5-ASA use and active disease might be risk factors associated with CDI in children and adolescents with *** surgery rates associated with CDI in IBD patients varied ***-scale clinical studies on CDI in children and adolescents with IBD are still needed to verify risk factors and outcomes.

关键词： Adolescent Children Clostridioides difficile infection Inflammatory bowel disease

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Effects of Si and Cr on Complete Decarburization Behavior of High Carbon Steels in Atmosphere of 2 vol.%O2

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Journal of Iron and Steel Research International 2016年第12期23卷 1316-1322页

作者： yang-bo LIU Wei ZHANG qian TONG Qi-song SUN Shougang Research Institute of Technology Beijing 100048China Beijing Key Laboratory of Green Recyclable Process for Iron&Steel Production Technology Beijing 100048China

The effects of chemical compositions, especially silicon and chromium contents, on the complete decarburization behaviors of steels in atmosphere of 2 vol. %O2 and 98 vol. % N2 were investigated by using a simuhaneous thermal analyzer. Complete decarburization was observed at both 750 and 800 ℃ for 60Si2MnA steel, while 750℃ only for 92A steel. For GCr15 steel, no decarburization was found at 750 or 800 ℃, and only partial decarburization was observed at 850 ℃. It indicates that silicon promotes while chromium prevents the complete decarburization of steels in atmosphere with 2 vol. % O2. The main reason is that silicon increases while chromium reduces the equilib rium concentration of ferrite at the interface of ferrite and austenite, which results in the complete decarburization.

关键词： complete deearburization silicon chromium low oxygen concentration oxide scale

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Analysis of delamination in thin film electrodes under galvanostatic and potentiostatic operations with Li-ion diffusion from edge

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Acta Mechanica Sinica 2013年第3期29卷 348-356页

作者： bo Lu Yi-Cheng song Zhan-Sheng Guo Jun-qian Zhang Shanghai Institute of Applied Mathematics and Mechanics Shanghai University Department of Mechanics Shanghai University Shanghai Key Laboratory of Mechanics in Energy Engineering Shanghai University

Progressive delamination driven by Li-ion diffusion in elastic disk-like thin film electrodes of Li-ion batteries is modeled based on the cohesive model. Axisymmetric diffusion model is considered under both galvanostatic and potentiostatic operations. The effect of edge diffusion on the delamination process is evaluated. It is found that the diffusion from edge leads to an earlier delamination initiation. The edge effect is significant for active disks with a small aspect ratio, but negligible for the case of large aspect ratio. The edge diffusion is weaker in the potentiostatic operation than in the galvanostatic operation.

关键词： Lithium-ion battery · Thin film electrode · De-lamination · Diffusion

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