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Constructing low-dimensional perovskite network to assist efficient and stable perovskite solar cells

Journal of Energy Chemistry 2024年第9期96卷 625-632页

作者： Jinwen Gu Xianggang Sun Pok Fung Chan Xinhui Lu Peng Zeng jue gong Faming Li Mingzhen Liu School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina Department of Physics The Chinese University of Hong Kong Shatin999077Hong KongChina Sichuan University-Pittsburgh Institute Sichuan UniversityChengdu 610065China State Key Laboratory Electronic Thin Film and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 611731SichuanChina

The use of low-dimensional(LD)perovskite materials is crucial for achieving high-performance perovskite solar cells(PSCs).However,LD perovskite films fabricated by conventional approaches give rise to full coverage of the underlying 3D perovskite films,which inevitably hinders the transport of charge carriers at the interface of ***,we designed and fabricated LD perovskite structure that forms net-like morphology on top of the underlying three-dimensional(3D)perovskite bulk *** net-like LD perovskite not only reduced the surface defects of 3D perovskite film,but also provided channels for the vertical transport of charge carriers,effectively enhancing the interfacial charge transfer at the LD/3D *** net-like morphological design comprising LD perovskite effectively resolves the contradiction between interfacial defect passivation and carrier extraction across the ***,the net-like LD perovskite morphology can enhance the stability of the underlying 3D perovskite film,which is attributed to the hydrophobic nature of LD *** a result,the net-like LD perovskite film morphology assists PSCs in achieving an excellent power conversion efficiency of up to 24.6%with over 1000 h long-term operational stability.

关键词： Low-dimensional perovskite Network Carrier transport Perovskite solar cell Stability

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Intestinal monocarboxylate transporter 1 mediates lactate transport in the gut and regulates metabolic homeostasis of mouse in a sex-dimorphic pattern

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Life Metabolism 2024年第1期3卷 21-36页

作者： Shuo Wang Lingling Zhang Jingyu Zhao Meijuan Bai Yijun Lin Qianqian Chu jue gong Ju Qiu Yan Chen CAS Key Laboratory of Nutrition Metabolism and Food SafetyShanghai Institute of Nutrition and HealthUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200031China CAS Key Laboratory of Tissue Microenvironment and Tumor Shanghai Institute of Nutrition and HealthUniversity of Chinese Academy of SciencesChinese Academy of SciencesShanghai 200031China

The monocarboxylate transporter 1(MCT1),encoded by gene Slc16a1,is a proton-coupled transporter for lactate and other monocar***1-mediated lactate transport was recently found to regulate various biological ***,how MCT1 and lactate in the intestine modulate the physiology and pathophysiology of the body is *** this study,we generated a mouse model with specific deletion of Slc16a1 in the intestinal epithelium(Slc16a1IKO mice)and investigated the functions of MCT1 in the *** fed a high-fat diet,Slc16a1IKO male mice had improvement in glucose tolerance and insulin sensitivity,while Slc16a1IKO female mice only had increased *** of intestinal MCT1 in male mice was associated with downregulation of pro-inflammatory pathways,together with decreased circulating levels of inflammatory cytokines including tumor necrosis factor alpha(TNFα)and C-C motif chemokine ligand 2(CCL2).Lactate had a stimulatory effect on pro-inflammatory macrophages in *** number of intestinal macrophages was reduced in Slc16a1IKO male mice in *** deletion of Slc16a1 in male mice reduced interstitial lactate level in the *** addition,treatment of male mice with estrogen lowered interstitial lactate level in the intestine and abolished the difference in glucose homeostasis between Slc16a1IKO and wild-type *** of intestinal MCT1 also blocked the transport of lactate and short-chain fatty acids from the intestine to the portal *** effect of Slc16a1 deletion on glucose homeostasis in male mice was partly mediated by alterations in gut *** conclusion,our work reveals that intestinal MCT1 regulates glucose homeostasis in a sex-dependent manner.

关键词： MCT1 intestine lactate short-chain fatty acids insulin resistance obesity

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Author Correction:Recent Progress in Interfacial Dipole Engineering for Perovskite Solar Cells

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Nano-Micro Letters 2024年第9期16卷 500-500页

作者： Yinyi Ma jue gong Peng Zeng Mingzhen Liu School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China State Key Laboratory Electronic Thin Film and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 611731People’s Republic of China

In the version of this Article originally published online,there was an error in the schematics of Figures 2b and *** errors have now been corrected in the original article.

关键词： corrected error Solar

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钙钛矿太阳能电池中的二氧化锡电子传输层调控

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激光与光电子学进展 2024年第5期61卷 378-396页

作者：崔玉鹏弓爵刘明侦电子科技大学材料与能源学院四川成都611731

作为平面异质结钙钛矿太阳能电池(PSCs)的重要组成部分,电子传输层(ETL)在提升PSCs器件的性能和稳定性上起着重要的作用。尽管最常用的两类ETL材料——二氧化钛(TiO_(2))和二氧化锡(SnO_(2)),均以纳米颗粒和溶液方式制备,TiO_(2)却面临... 详细信息

作为平面异质结钙钛矿太阳能电池(PSCs)的重要组成部分,电子传输层(ETL)在提升PSCs器件的性能和稳定性上起着重要的作用。尽管最常用的两类ETL材料——二氧化钛(TiO_(2))和二氧化锡(SnO_(2)),均以纳米颗粒和溶液方式制备,TiO_(2)却面临着电子迁移率低、器件滞回效应大、化学稳定性差、需高温制备等问题,相比之下,SnO_(2)具有优异的光电学性质、更高的稳定性、可低温制备等优势。聚焦于基于SnO_(2)ETL的PSCs稳定性和界面电荷提取,首先综述了SnO_(2)材料的物理性质和优点;然后从制备和成膜方法(如化学浴沉积、溶液旋涂等)入手,进一步阐明了SnO_(2)的体相和表面缺陷;最后基于SnO_(2)ETL的缺陷,从界面钝化、体相掺杂和双电子层构筑等三方面重点介绍了提升PSCs稳定性和界面载流子提取效率的途径。该综述可助力PSCs性能和稳定性的进一步提升,为该新兴光伏技术进一步实用化贡献有用的见解。

关键词：钙钛矿太阳能电池二氧化锡电子传输层运作稳定性界面调控载流子提取

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车辆在非光滑路面的接触动力学分析方法研究

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力学学报 2024年第6期56卷 1762-1774页

作者：宋宁宁赵剑公爵李琳辉彭海军大连理工大学机械工程学院汽车工程系辽宁大连116024 大连理工大学力学与航空航天学院工程力学系辽宁大连116024

车辆接触动力学研究有助于更加全面地了解整车力学性能,对整车稳定性和座舱舒适性设计具有指导性作用.文章基于非光滑多体系统理论,对车辆系统展开接触动力学研究.考虑到车辆在行驶过程中,轮胎是与地面接触的唯一部件,轮胎动力学模型对... 详细信息

车辆接触动力学研究有助于更加全面地了解整车力学性能,对整车稳定性和座舱舒适性设计具有指导性作用.文章基于非光滑多体系统理论,对车辆系统展开接触动力学研究.考虑到车辆在行驶过程中,轮胎是与地面接触的唯一部件,轮胎动力学模型对整车动力学分析发挥着重要的作用.首先,借助于张拉整体结构的思想,建立轮胎的等效模型.然后,采用拉格朗日乘子方法,将约束方程引入到拉格朗日函数中,并基于第二类拉格朗日方程,推导得到整车系统的一般动力学方程.由于接触碰撞的存在,会导致车辆的状态变量呈现出非连续性.利用牛顿碰撞定律,建立了碰撞响应的非光滑数学列式,并利用光滑化的Fischer-Burmeister函数将非光滑数学列式进行等效替换,以提高计算效率.其次,将摩擦响应的求解转化为优化问题进行描述,以避免求解摩擦方向时出现奇异.另外,将车辆系统的一般动力学模型分解为光滑部分与非光滑部分进行求解,并利用广义α离散策略给出了详细的求解流程.最后,对整车系统展开了多工况的接触碰撞数值仿真,分析了不同工况下的接触响应对整车动力学性能的影响,验证了所提方法的有效性.

关键词：车辆多体系统动力学轮胎建模碰撞摩擦非光滑接触

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低维钙钛矿模板调控MAPbI3钙钛矿晶体生长与光伏性能的研究

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激光与光电子学进展 2024年第5期61卷 368-377页

作者：杨云云吴婧仪马胤译弓爵李发明电子科技大学材料与能源学院四川成都611731

钙钛矿太阳能电池材料因其低成本及优异的光电物理性能受到光伏领域的极大青睐。在双源蒸镀法制备钙钛矿光吸收层过程中,钙钛矿薄膜长期面临生长机制不明、结晶质量较差的问题,严重影响钙钛矿薄膜光吸收性质、载流子寿命等重要参量,阻... 详细信息

钙钛矿太阳能电池材料因其低成本及优异的光电物理性能受到光伏领域的极大青睐。在双源蒸镀法制备钙钛矿光吸收层过程中,钙钛矿薄膜长期面临生长机制不明、结晶质量较差的问题,严重影响钙钛矿薄膜光吸收性质、载流子寿命等重要参量,阻碍了气相沉积钙钛矿太阳能电池器件效率的提升。利用不同大半径有机阳离子设计准二维(2D)钙钛矿材料,在钙钛矿/空穴传输层界面构筑准2D钙钛矿缓冲层模板,调控气相蒸镀钙钛矿的晶体生长过程,获得了垂直生长的柱状钙钛矿晶粒,显著提升了钙钛矿层光吸收性能与载流子寿命,实现了钙钛矿太阳能电池效率从16.21%到19.55%的提升。上述结果为气相蒸镀实现优异光电性能的钙钛矿薄膜及光伏器件提供了有价值的参考。

关键词：钙钛矿材料载流子寿命晶体生长太阳能电池模板诱导生长

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越顶位重建联合改良Lemaire技术在前交叉韧带一期翻修中的应用

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中华医学杂志 2024年第17期104卷 1486-1492页

作者：李瑞欣弓爵向先祥刘佳魏志亨王卫明大连大学附属新华医院运动医学科大连大学运动医学研究所，大连116021

目的探讨越顶位(OTT)重建前交叉韧带(ACL)联合改良Lemaire技术在ACL一期翻修中的临床疗效。方法病例系列研究。回顾性分析大连大学附属新华医院运动医学科2020年4月至2023年5月采用OTT联合改良Lemaire技术进行ACL一期翻修的37例患者的... 详细信息

目的探讨越顶位(OTT)重建前交叉韧带(ACL)联合改良Lemaire技术在ACL一期翻修中的临床疗效。方法病例系列研究。回顾性分析大连大学附属新华医院运动医学科2020年4月至2023年5月采用OTT联合改良Lemaire技术进行ACL一期翻修的37例患者的临床资料,其中男28例,女9例,年龄(32.7±5.7)岁。通过术前及术后3个月、术后24个月膝关节主、客观评价指标评定术后膝关节功能及手术翻修效果。其中,主观评价指标包括国际膝关节文献委员会(IKDC)评分、Lysholm评分、Tegner评分;客观评价指标包括胫骨前-后向静态位移距离、胫骨-股骨相对旋转角度、Lachman试验、轴移试验以及下肢肌力丢失比。结果末次随访时,患者均恢复至伤前运动水平,IKDC评分[术前(45.3±6.8)分、术后3个月(67.5±4.7)分、术后2年(93.2±2.3)分]、Lysholm评分[术前(57.2±2.6)分、术后3个月(72.6±2.9)分、术后2年(89.7±3.7)分]、Tegner评分[术前(3.1±0.7)分、术后3个月(4.9±0.6)分、术后2年(5.8±1.3)分]均有改善,差异均有统计学意义(均P<0.001)。胫骨前-后向静态位移距离由术前的(5.2±0.5)mm降至术后2年的(1.4±0.5)mm(P<0.001),胫骨-股骨相对旋转角度术前的6.2°±1.2°降至术后2年的1.7°±0.3°(P<0.001),且恢复至正常生理范围;术后2年Lachman试验、轴移试验均阴性;患侧下肢肌力丢失比优于术前(P<0.001)。结论利用OTT重建联合改良Lemaire技术对ACL重建失效患者进行翻修,可规避隧道问题进行一期翻修,较好地恢复膝关节的稳定和功能,临床效果满意。

关键词：前交叉韧带前交叉韧带重建越顶位重建改良Lemaire技术一期翻修

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Recent Progress in Interfacial Dipole Engineering for Perovskite Solar Cells

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Nano-Micro Letters 2023年第10期15卷 260-286页

Design and modification of interfaces have been the main strategies in developing perovskite solar cells(PSCs). Among the interfacial treatments, dipole molecules have emerged as a practical approach to improve the efficiency and stability of PSCs due to their unique and versatile abilities to control the interfacial properties. Despite extensive applications in conventional semiconductors, working principles and design of interfacial dipoles in the performance/stability enhancement of PSCs are lacking an insightful elucidation. In this review, we first discuss the fundamental properties of electric dipoles and the specific roles of interfacial dipoles in PSCs. Then we systematically summarize the recent progress of dipole materials in several key interfaces to achieve efficient and stable PSCs. In addition to such discussions, we also dive into reliable analytical techniques to support the characterization of interfacial dipoles in PSCs. Finally, we highlight future directions and potential avenues for research in the development of dipolar materials through tailored molecular designs. Our review sheds light on the importance of continued efforts in this exciting emerging field, which holds great potential for the development of high-performance and stable PSCs as commercially demanded.

关键词： Perovskite solar cells Interfacial dipoles Analytical techniques

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Smart membranes for biomedical applications

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Chinese Journal of Chemical Engineering 2022年第9期35卷 34-45页

作者： Lin-Bing Zou jue-Ying gong Xiao-Jie Ju Zhuang Liu Wei Wang Rui Xie Liang-Yin Chu School of Chemical Engineering Sichuan UniversityChengdu 610065China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu 610065China

Smart membranes with tunable permeability and selectivity have drawn widespread attention because of their unique biomimetic *** by incorporating various stimuli-responsive materials into membrane substrates,smart membranes could self-adjust their physical/chemical properties(such as pore size and surface properties)in response to environmental signals such as temperature,pH,light,magnetic field,electric field,redox and specific ions/*** smart membranes show great prospects in biomedical applications ranging from controlled drug release to bioseparation and tissue *** this review,three controlled release models realized by different designed smart membranes are emphatically introduced,and then smart membranes for biological separation and controlled cell culture are introduced and discussed *** last,the existing challenges of smart membranes for biomedical applications are briefly summarized,and future research topics are suggested.

关键词： Membranes Polymers Smart materials Controlled release Bioseparation Cell culture

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Cation engineering on lead iodide perovskites for stable and high-performance photovoltaic applications

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Journal of Energy Chemistry 2018年第4期27卷 1017-1039页

作者： jue gong Peijun Guo Savannah E.Benjamin P.Gregory Van Patten Richard D.Schaller Tao Xu Department of Chemistry and Biochemistry Northern Illinois UniversityDeKalbIL 60115USA Center for Nanoscale Materials Argonne National Laboratory9700 South Cass AvenueLemontIL 60439USA Department of Chemistry Middle Tennessee State UniversityMurfreesboroTN 37132USA

Perovskite solar cells （PSCs） based on methylammonium lead iodide （CH3NH3PbI3） have shown unprecedentedly outstanding performance in the recent years. Nevertheless, due to the weak interaction between polar CH3NH3＋（MA＋） and inorganic PbI3 sublattices, CH3NH3PbI3 dramatically suffers from poor moisture stability, thermal decomposition and device hysteresis. As such, strong electrostatic interactions between cations and anionic frameworks are desired for synergistic improvements of the abovementioned issues. While replacements of I with Br and/or CI evidently widen optical bandgaps of perovskite materials, compositional modifications can solely be applied on cation components in order to preserve the broad absorption of solar spectrum. Herein, we review the current successful practices in achieving efficient, stable and minimally hysteretic PSCs with lead iodide perovskite systems that employ photoactive cesium lead iodide （CsPbI3）, formamidinium lead iodide （HC（NH2）2PbI3, or FAPbI3）, MA1-x y-zFAxCsyRbzPbI3 mixed-cation settings as well as two-dimensional butylammonium （C4H9NH3＋, or BA＋）/MA＋, polymeric ammonium （PEI＋）/MA＋ co-cation layered structures. Fundamental aspects behind the stabilization of perovskite phases α-CsPbi3, α-FAPbI3, mixed-cation MA1-x-y-zFAxCsyRb2PbI3 and crystallographic alignment of （BA）2（MA）3Pb4I13 for effective light absorption and charge transport will be discussed. This review will contribute to the continuous development of photovoltaic technology based on PSCs.

关键词： Solar energy conversion Perovskite solar cells Power conversion efficiency Optical bandgaps Device hysteresis Metastabte phases

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