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Application of machine learning in perovskite materials and devices:A review

Journal of Energy Chemistry 2024年第7期94卷 254-272页

作者： Ming Chen Zhenhua Yin Zhicheng Shan Xiaokai Zheng Lei liu Zhonghua Dai Jun Zhang shengzhong(Frank)liu Zhuo Xu School of Electric Power Civil Engineering and ArchitectureCollege of Physics and Electronics EngineeringState Key Laboratory of Quantum Optics and Quantum Optics DevicesShanxiUniversityTaiyuan030006ShanxiChina Key Laboratory of Applied Surface and Clloid Chemistry National Ministry of EducationShanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi'an 710119ShaanxiChina State Key Laboratory of Catalysis Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina

Metal-halide hybrid perovskite materials are excellent candidates for solar cells and photoelectric devices.In recent years,machine learning(ML)techniques have developed rapidly in many fields and provided ideas for material discovery and design.ML can be applied to discover new materials quickly and effectively,with significant savings in resources and time compared with traditional experiments and density functional theory(DFT)calculations.In this review,we present the application of ML in per-ovskites and briefly review the recent works in the field of ML-assisted perovskite design.Firstly,the advantages of perovskites in solar cells and the merits of ML applied to perovskites are discussed.Secondly,the workflow of ML in perovskite design and some basic ML algorithms are introduced.Thirdly,the applications of ML in predicting various properties of perovskite materials and devices are reviewed.Finally,we propose some prospects for the future development of this field.The rapid devel-opment of ML technology will largely promote the process of materials science,and ML will become an increasingly popular method for predicting the target properties of materials and devices.

关键词： Machine learning Perovskite Materials design Bandgap engineering Stability Crystal structure

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Optimal flight parameters of unmanned helicopter for tea plantation frost protection

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International Journal of Agricultural and Biological Engineering 2015年第5期8卷 50-57页

作者： Hu Yongguang liu shengzhong Wu Wenye Wang Jizhang Shen Jianwen School of Agricultural Equipment Engineering Jiangsu UniversityZhenjiang 212013China Electronic Application Laboratory of Wuxi Hanhe Unmanned Helicopters Wuxi 214135China

To determine proper flight parameters of an unmanned helicopter for tea plantation frost protection,field experiments were conducted to study the impact of flight height,speed and interval on airflow disturbance and temperature rise around tea canopies based on the analysis and simulation of frost protection with a certain helicopter.The relationship between temperature rise after flight and the above flight parameters was established through a regression orthogonal experiment,based on which the optimal combination of flight parameters was obtained through the single-factor golden section method.The results showed that wind speed around tea canopies decreased with the increase of flight height when flight speed was constant.There was a multivariate linear relationship between temperature rise and flight parameters,and the sequence of flight parameters’influence on frost protection effect was flight interval,flight height,flight speed.The optimal combination of flight parameters were flight height of 4.0 m,flight speed of 6.0 m/s and flight interval of 20 min.After the flight with the above parameters air temperature around tea canopies increased 1.6℃ when background thermal inversion strength was 3.8℃.

关键词： thermal inversion frost protection unmanned helicopter flight parameters orthogonal experiment single-factor golden section method tea plants

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The issues on the commercialization of perovskite solar cells

Materials Futures

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Materials Futures 2024年第2期3卷 1-35页

作者： Lixiu Zhang Yousheng Wang Xiangchuan Meng Jia Zhang Pengfei Wu Min Wang Fengren Cao Chunhao Chen Zhaokui Wang Fu Yang Xiaodong Li Yu Zou Xi Jin Yan Jiang Hengyue Li Yucheng liu Tongle Bu Buyi Yan Yaowen Li Junfeng Fang Lixin Xiao Junliang Yang Fuzhi Huang shengzhong liu Jizhong Yao Liangsheng Liao Liang Li Fei Zhang Yiqiang Zhan Yiwang Chen Yaohua Mai Liming Ding Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190People’s Republic of China Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632People’s Republic of China Institute of Polymers and Energy Chemistry(IPEC) Nanchang UniversityNanchang 330031People’s Republic of China School of Information Science and Technology Fudan UniversityShanghai 200433People’s Republic of China School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072People’s Republic of China School of Physical Science and Technology Soochow UniversitySuzhou 215006People’s Republic of China Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123People’s Republic of China Institute of optoelectronics Fudan UniversityShanghai 200433People’s Republic of China College of Chemistry Chemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123People’s Republic of China School of Physics and Electronic Science East China Normal UniversityShanghai 200241People’s Republic of China State Key Laboratory for Artificial Microstructure and Mesoscopic Physics Department of PhysicsPeking UniversityBeijing 100871People’s Republic of China College of Biophotonics South China Normal UniversityGuangzhou 510631People’s Republic of China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081People’s Republic of China School of Physics and Electronics Central South UniversityChangsha 410083People’s Republic of China School of Materials Science and Engineering Shaanxi Normal UniversityXi’an 710119People’s Republic of China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Microquanta semiconductor Hangzhou 311121People’s Republic of China

Perovskite solar cells have aroused a worldwide research upsurge in recent years due to their soaring photovoltaic performance,ease of solution processing,and low cost.The power conversion efficiency record is constantly being broken and has recently reached 26.1%in the lab,which is comparable to the established photovoltaic technologies such as crystalline silicon,copper indium gallium selenide and cadmium telluride(CdTe)solar cells.Currently,perovskite solar cells are standing at the entrance of industrialization,where huge opportunities and risks coexist.However,towards commercialization,challenges of up-scaling,stability and lead toxicity still remain,the proper handling of which could potentially lead to the widespread adoption of perovskite solar cells as a low-cost and efficient source of renewable energy.This review gives a holistic analysis of the path towards commercialization for perovskite solar cells.A comprehensive overview of the current state-of-the-art level for perovskite solar cells and modules will be introduced first,with respect to the module efficiency,stability and current status of industrialization.We will then discuss the challenges that get in the way of commercialization and the corresponding strategies to address them,involving the upscaling,the stability and the lead toxicity issue.Insights into the future direction of commercialization of perovskite photovoltaics was also provided,including the flexible perovskite cells and modules and perovskite indoor photovoltaics.Finally,the future perspectives towards commercialization are put forward.

关键词： commercializations perovskite solar cells state-of-the-art level challenges and perspectives indoor photovoltaics

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Recent Advances in Wide-Bandgap Organic-Inorganic Halide Perovskite Solar Cells and Tandem Application

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Nano-Micro Letters 2023年第5期15卷 254-297页

作者： Ting Nie Zhimin Fang Xiaodong Ren Yuwei Duan shengzhong(Frank)liu Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China Dalian National Laboratory for Clean Energy iChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China

Perovskite-based tandem solar cells have attracted increasing interest because of its great potential to surpass the Shockley-Queisser limit set for single-junction solar cells.In the tandem architectures,the wide-bandgap(WBG)perovskites act as the front absorber to offer higher open-circuit voltage(VOC)for reduced thermalization losses.Taking advantage of tunable bandgap of the perovskite materials,the WBG perovskites can be easily obtained by substituting halide iodine with bromine,and substituting organic ions FA and MA with Cs.To date,the most concerned issues for the WBG perovskite solar cells(PSCs)are huge VOC deficit and severe photo-induced phase separation.Reducing VOC loss and improving photostability of the WBG PSCs are crucial for further efficiency breakthrough.Recently,scientists have made great efforts to overcome these key issues with tremendous progresses.In this review,we first summarize the recent progress of WBG perovskites from the aspects of compositions,additives,charge transport layers,interfaces and preparation methods.The key factors affecting efficiency and stability are then carefully discussed,which would provide decent guidance to develop highly efficient and stable WBG PSCs for tandem application.

关键词： Efficiency Perovskite Solar cell Stability Wide-bandgap

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Low-dimensional perovskite modified 3D structures for higher-performance solar cells

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Journal of Energy Chemistry 2023年第6期81卷 389-403,I0009页

作者： Lili Gao Ping Hu shengzhong(Frank)liu College of Metallurgical Engineering Xi’an University of Architecture and TechnologyXi'an 710055ShaanxiChina Dalian Institute of Chemical Physics Chinese Academy of SciencesDalian 116023LiaoningChina School of Materials Science and Engineering Shaanxi Normal UniversityXi’an 710119ShaanxiChina

For solution prepared perovskite solar cells,metal halide perovskite materials with low-dimensional(LD)are flexibly employed in 3D perovskite solar cells to promote efficiency and long-term stability.In this review,the various structures,properties,and applications of LD perovskites are firstly summarized and discussed.To take advantage of LD materials,LD perovskites are introduced in the 3D bulk and/or the interface between the perovskite thin film and the carrier transporting layer to passivate the gain boundary defects while providing the stability advantage of LD materials.Therefore,the preparation methods and crystallization control of the LD perovskite layers are discussed in depth.Then,the combined devices using both LD and 3D components are reviewed on the basis of device design,cell structure,interface charge transfer,energy lever alignment,and synergistic improvement of both efficiency and stability.Finally,the challenges and expectations are speculated for further development of perovskite solar cells.

关键词： Low-dimensional Structure Perovskite solar cell Efficiency Service stability

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食道超声心动图辅助胸腔镜左心耳夹闭术在高栓塞和高出血风险心房颤动患者中的应用

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中国微创外科杂志 2024年第6期24卷 432-437页

作者：刘胜中魏大闯向波谭今李文华黄克力四川省医学科学院·四川省人民医院电子科技大学附属医院心脏大血管外科成都610072 四川省医学科学院·四川省人民医院电子科技大学附属医院心血管超声及心功能科成都610072

目的探讨食道超声心动图辅助胸腔镜左心耳夹闭术在高栓塞和高出血风险心房颤动患者中的安全性和疗效。方法回顾性分析2021年11月~2023年5月14例高栓塞和高出血风险的心房颤动患者资料。均有脑梗死史,CHA2 DS2-VASc评分3~7分,(5.0±1.4)... 详细信息

目的探讨食道超声心动图辅助胸腔镜左心耳夹闭术在高栓塞和高出血风险心房颤动患者中的安全性和疗效。方法回顾性分析2021年11月~2023年5月14例高栓塞和高出血风险的心房颤动患者资料。均有脑梗死史,CHA2 DS2-VASc评分3~7分,(5.0±1.4)分;HAS-BLED评分3~4分,(3.3±0.5)分。两孔法胸腔镜手术,食道超声心动图辅助采用国产E-Clip左心耳闭合系统行左心耳夹闭术。结果全组手术均顺利完成,手术时间(39.6±7.7)min,术后总引流量(80.4±37.1)ml,引流管留置时间(26.0±2.5)h。14例随访3~21个月,中位时间8个月。经胸超声心动图显示左心耳夹闭完全,无残余漏,左心房内未见血栓形成。头颅CT未见新发脑梗死或出血灶。心电图提示窦性心律2例,12例仍为心房颤动。结论食道超声心动图辅助胸腔镜左心耳夹闭术能够完全夹闭左心耳,避免高栓塞和高出血风险心房颤动患者新发脑卒中,并对少数患者起到电隔离左心耳的作用而消除心房颤动。

关键词：左心耳夹闭术胸腔镜手术食道超声心动图心房颤动脑卒中高出血风险

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Organic ammonium halides enhance the performance of Pb-Sn perovskite solar cells

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Journal of Semiconductors 2022年第12期43卷 5-8页

作者： Zhimin Fang Lixiu Zhang shengzhong(Frank)liu Liming Ding Key Laboratory of Applied Surface and Colloid Chemistry(MoE) School of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China

With the efforts of scientists around the world,the power conversion efficiency(PCE)of perovskite solar cells(PSCs)has reached 25.7%.To further improve the efficiency and break through the Shockley-Queisser(S-Q)limit,it is promising to construct all-perovskite tandem solar cells via combining wide-bandgap and narrow-bandgap perovskites[1−5].As the key light-harvesting material for the bottom cell in all-per-ovskite tandem devices,the narrow-bandgap Pb-Sn mixed per-ovskites have attracted increasing interest in recent years[6−8].However,the Pb-Sn mixed perovskites suffer from uncontrol-lable crystallization,easy oxidation of Sn2+and high defect density,which significantly limit PCE improvement[9,10].Organ-ic ammonium halides can improve the efficiency and stabil-ity of Pb-Sn mixed PSCs.

关键词： perovskite ammonium narrow

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Recent Progress of Electrode Materials for Flexible Perovskite Solar Cells

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Nano-Micro Letters 2022年第7期14卷 179-208页

作者： Yumeng Xu Zhenhua Lin Wei Wei Yue Hao shengzhong liu Jianyong Ouyang Jingjing Chang State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology School of MicroelectronicsXidian University2 South Taibai RoadXi’an 710071People’s Republic of China Advanced Interdisciplinary Research Center for Flexible Electronics Xidian University2 South Taibai RoadXi’an 710071People’s Republic of China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationInstitute for Advanced Energy MaterialsSchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119People’s Republic of China Department of Materials Science and Engineering National University of Singapore7 Engineering Drive 1Singapore 117574Singapore

Flexible perovskite solar cells(FPSCs) have attracted enormous interest in wearable and portable electronics due to their high power-per-weight and low cost. Flexible and efficient perovskite solar cells require the development of flexible electrodes compatible with the optoelectronic properties of perovskite. In this review, the recent progress of flexible electrodes used in FPSCs is comprehensively reviewed. The major features of flexible transparent electrodes, including transparent conductive oxides, conductive polymer, carbon nanomaterials and nanostructured metallic materials are systematically compared. And the corresponding modification strategies and device performance are summarized. Moreover, flexible opaque electrodes including metal films, opaque carbon materials and metal foils are critically assessed. Finally, the development directions and difficulties of flexible electrodes are given.

关键词： Flexible electrode Flexible perovskite solar cell Carbon nanomaterials Metallic nanostructures Conductive oxide

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X线引导下置入肠梗阻导管治疗妇科恶性肿瘤所致恶性肠梗阻

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中国介入影像与治疗学 2024年第6期21卷 334-337页

作者：刘胜中张敏伟张子秋翟天旭李德春徐州医科大学徐州临床学院江苏徐州221009 徐州市中心医院放射科江苏徐州221009

目的观察X线引导下置入肠梗阻导管治疗妇科恶性肿瘤所致恶性肠梗阻(MBO)效果。方法回顾性分析60例妇科恶性肿瘤术后小肠MBO患者资料,其中30例接受X线引导下肠梗阻导管置入(A组)、30例接受传统鼻胃管置入(B组),之后均接受持续胃肠减压。... 详细信息

目的观察X线引导下置入肠梗阻导管治疗妇科恶性肿瘤所致恶性肠梗阻(MBO)效果。方法回顾性分析60例妇科恶性肿瘤术后小肠MBO患者资料,其中30例接受X线引导下肠梗阻导管置入(A组)、30例接受传统鼻胃管置入(B组),之后均接受持续胃肠减压。对比2组MBO症状缓解情况、排气排便时间及治疗后饮食恢复情况,记录24 h平均引流量、导管留置时间及有无治疗相关并发症,以及治疗后1年内生存情况。结果对60例均成功置管。A组置管后排气排便、经口进食均早于,导管留置时间短于而24 h平均引流量大于B组(P均<0.05),组间肠梗阻症状缓解率差异无统计学意义(P=0.472)。治疗中A组8例出现鼻部轻微出血、4例口咽部不适,B组5例鼻部出血、5例口咽部不适,均未经特殊处理后自行缓解;组间治疗相关并发症差异无统计学意义(P=0.361)。治疗后1年,2组均有28例完成随访、失访2例,A组生存率[25.00%(7/28)]与B组[17.86%(5/28)]差异无统计学意义(P=0.745)。结论X线引导下置入肠梗阻导管治疗妇科恶性肿瘤所致MBO安全、有效。

关键词：肠梗阻肿瘤介入治疗

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Transition metal phosphides:A wonder catalyst for electrocatalytic hydrogen production

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中国化学快报:英文版 2023年第9期34卷 25-33页

作者： Mingxuan Du Deng Li shengzhong(Frank)liu Junqing Yan Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China

Hydrogen evolution from water electrolysis has become an important reaction for the green energy revolution.Traditional precious metals and their compounds are excellent catalysts for producing hydrogen;however,their high cost limits their large-scale practical application.Therefore,the development of affordable electrocatalysts to replace these precious metals is important.Transition metal phosphides(TMPs)have shown remarkable performance for hydrogen evolution and garnered considerable interest in the field of electrolysis.Based on the detailed introduction of TMPs in previous studies,we have systematically summarized the preparation methods,improvement methods,and development opportunities of TMPs and proposed“stimulatory factors”as a fundamental factor affecting the performance of TMPs herein.As the core of this research,“stimulatory factors”can provide numerous solutions to improve the performance of TMP materials and provide a good starting point for TMP research.

关键词： Hydrogen evolution reaction Phosphating Doping Morphology Heterojunction Defects

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