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Stability,encapsulation and large-area fabrication of organic photovoltaics

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Science China Chemistry 2021年第9期64卷 1441-1459页

作者： Shan Song Jiaorong Lu Weiyu Ye Bei Zhang Xuan Liu Guichuan Xing Shiming Zhang Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing Tech UniversityNanjing211816China Institute of Applied Physics and Materials Engineering University of MacaoMacao SAR999078China Jiangsu Seenbom Flexible Electronics Institute Co. Ltd.Nanjing211032China

Organic photovoltaics(OPVs)have become a timely research topic for their advantages of light weight,low cost,low toxicity,environmental adaptability,flexibility,and large-area manufacture,especially after non-fullerene acceptor ITIC reported in *** highest power conversion efficiency(PCE)is currently above 18%for ***,there are still imparities in the efficiency of OPVs when compared with silicon-based photovoltaics,as well as in their shelf *** with inorganicbased photovoltaics,the efficiency of large-area OPVs is lower and the life time of OPVs is ***,such inferior performance of large-area OPVs restricts the commercial *** on these constraints,this paper reviews the research work regarding OPVs into three aspects:stability,encapsulation technology,and recent large-area preparation technologies.

关键词： organic photovoltaics stability encapsulation large-area fabrication

Preparation of Perovskite Solar Cells in the Air:Degradation Mechanism and Prospects on large-area fabrication

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Chinese Journal of Chemistry 2023年第5期41卷 599-617页

作者： Shuaishuai Guo Kaikai Liu Li Rao Xiaotian Hu Yiwang Chen School of Physics and Materials Nanchang University999 Xuefu AvenueNanchangJiangxi 330031China College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry Nanchang University999 Xuefu Avenue NanchangJiangxi330031China Peking University Yangtze Delta Institute of Optoelectronics NantongJiangsu 226010China National Engineering Research Centerfor Carbohydrate Synthesis/Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministryof Education Jiangxi Normal University99 Ziyang VenueNanchangJiangxi 330022China

The preparation of perovskite solar cells(PsCs)in the air environment has attracted the attention of numerous experimenters due to its low preparation cost and the possibility of *** the power conversion efficiency(PCE)of PSCs has increased rapidly and exceeded 25%,which is comparable to commercial polysilicon solar cells,most certified or reported high-efficiency perovskite solar cells are still confined to glove boxes or relatively small active areas in the air environment due to moisture,oxygen,high temperature,and ultraviolet(UV)*** this review.

关键词： Perovskite solar cells Degradation mechanism fabrication in the air Stability strategy large-area fabrication Thin films Photooxidation

High-speed, large-area and high-precision fabrication of aspheric micro-lens array based on 12-bit direct laser writing lithography

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Light(Advanced Manufacturing) 2022年第4期3卷 50-60页

作者： Shiyi Luan Fei Peng Guoxing Zheng Chengqun Gui Yi Song Sheng Liu School of Power and Mechanical Engineering Wuhan UniversityWuhan 430072China The Institute of Technological Sciences Wuhan UniversityWuhan 430072China Electronic Information School Wuhan UniversityWuhan 430072China Wuhan Institute of Quantum Technology Wuhan 430206China

Aspheric micro-lens array(AMLA),featured with low dispersion and diffraction-limited imaging quality,plays an important role in advanced optical ***,the fabrication of commercially applicable AMLAs should feature low cost,high precision,large area and high ***,these criteria have been achieved only partially with conventional fabrication ***,we demonstrate the fabrication and characterization of AMLAs based on 12-bit direct laser writing lithography,which exhibits a high fabrication speed,large area,perfect lens shape control via a three-dimensional optical proximity correction and average surface roughness lower than 6 *** particular,the AMLAs can be flexibly designed with customized filling factor and arbitrary off-axis operation for each single micro-lens,and the proposed pattern transfer approach with polydimethylsiloxane(PDMS)suggests a low-cost way for mass *** auto-stereoscopic-display flexible thin film with excellent display effect has been prepared by using above technology,which exhibits a new way to provide flexible auto-stereoscopic-display at low *** brief,the demonstrated fabrication of AMLAs based on direct laser writing lithography reduce the complexity of AMLA fabrication while significantly increasing their performance,suggesting a new route for high-quality three-dimentional optical manufacturing towards simplified fabrication process,high precision and large scale.

关键词： Aspheric micro-lens array large-area fabrication Sub 6 nm roughness 12-bit direct laser writing lithography

large-scale controllable fabrication of aluminum nanobowls for surface plasmon-enhanced fluorescence

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Nano Research 2023年第7期16卷 10131-10138页

作者： Yawen Wang Heng Gao Yuanlan Liu Dong Li Bo Zhao Wenkai Liang Yinghui Sun Lin Jiang Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China College of Energy Soochow Institute for Energy and Materials Innovations and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu ProvinceSoochow UniversitySuzhou 215006China

Al nanoparticles(NPs)exhibit excellent localized surface plasmon resonance(LSPR)properties and have been considered a promising alternative to plasmonic Au or Ag ***,it remains difficult to fabricate Al NPs with uniform size and controllable morphology over a large area on substrates,which seriously hinders the in-depth exploration of their properties and ***,we have developed a self-assembly nanoparticle template method to realize the controllable preparation of bowl-shaped Al NPs(Al nanobowls(Al NBs))with tunable sizes from 36 to 131 nm on the substrate surface,accompanied by tunable LSPR spectral responses from 272 to 480 *** them,131 nm Al NBs exhibit superior fluorescence enhancement ability(1932.2-fold)and a low detection limit(78.6 pM)towards 5-carboxyfluorescein,exceeding comparable Ag NBs and Au nanospheres(NSs).This can be attributed to the strong electromagnetic enhancement induced by the LSPR effect and the effective inhibition of fluorescence quenching caused by the self-passivated oxide ***,the successful fabrication of Al NBs on substrates is of vital significance for their promising applications,including surface-enhanced spectroscopy,sensitive fluorescence detection,light-harvesting devices,biosensing,and ultraviolet(UV)plasmonics.

关键词： Al nanoparticles controllable size localized surface plasmon resonance(LSPR) large-area fabrication fluorescence enhancement

Review of roll-to-roll fabrication techniques for colloidal quantum dot solar cells

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Journal of Electronic Science and Technology 2023年第1期21卷 1-25页

作者： Yin-Fen Ma You-Mei Wang Jia Wen Ao Li Xiao-Liang Li Mei Leng Yong-Biao Zhao Zheng-Hong Lu Key Laboratory of Yunnan Provincial Higher Education Institutions for Optoelectronics Device Engineering Department of PhysicsSchool of Physics and AstronomyYunnan UniversityKunming650091China International Joint Research Center for Optoelectronic and Engineering Research Yunnan UniversityKunming650091China Department of Materials Science and Engineering University of TorontoTorontoM5S 3E4Canada

Colloidal quantum dots(CQDs)are of great interest to photovoltaic(PV)technologies as they possess the benefits of solution-processability,size-tunability,and roll-to-roll manufacturability,as well as unique capabilities to harvest near-infrared(NIR)*** the last decade,lab-scale CQD solar cells have achieved rapid improvement in the power conversion efficiency(PCE)from~1%to 18%,which will potentially exceed 20%in the next few years and approach the performance of other PV technologies,such as perovskite solar cells and organic solar *** the meanwhile,CQD solar cells exhibit long lifetimes either under shelf storage or continuous operation,making them highly attractive to ***,in order to meet the industrial requirements,mass production techniques are necessary to scale up the fabrication of those lab devices into large-area PV modules,such as roll-to-toll *** paper reviews the recent developments of large-area CQD solar cells with a focus on various fabrication methods and their *** covers the progress of typical large-area coating techniques,including spray coating,blade coating,dip coating,and slot-die *** also discusses next steps and new strategies to accomplish the ultimate goal of the low-cost large-area fabrication of CQD solar cells and emphasizes how artificial intelligence or machine learning could facilitate the developments of CQD solar cell research.

关键词： Colloidal quantum dots(CQDs) large-area fabrication Roll-to-roll Solar cells

Plasmonic nano-printing: large-area nanoscale energy deposition for efficient surface texturing

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Light(Science & Applications) 2017年第1期6卷 335-341页

作者： Lei Wang Qi-Dai Chen Xiao-Wen Cao Ričardas Buividas Xuewen Wang Saulius Juodkazis Hong-Bo Sun State Key Laboratory on Integrated Optoelectronics College of Electronic Science and EngineeringJilin University2699 Qianjin StreetChangchun 130012China Centre for Micro-Photonics Faculty of ScienceEngineering and TechnologySwinburne University of TechnologyHawthornVIC 3122Australia Melbourne Centre for Nanofabrication ANFF151 Wellington RoadClaytonVIC 3168Australia

The lossy nature of plasmonic wave due to absorption is shown to become an advantage for scaling-up a large area surface nanotexturing of transparent dielectrics and semiconductors by a self-organized sub-wavelength energy deposition leading to an ablation pattern—ripples—using this plasmonic *** nanoscale modifications are delivered by surface plasmon polariton(SPP)using:(i)fast scan and(ii)cylindrical focusing of femtosecond laser pulses for a high patterning *** mechanism of ripple formation on ZnS dielectric is experimentally proven to occur via surface wave at the substrate–plasma *** line focusing increase the ordering quality of ripples and facilitates fabrication over wafer-sized areas within a practical time *** using SPP is expected to open new applications in photo-catalysis,tribology,and solar light harvesting via localized energy deposition rather scattering used in photonic and sensing applications based on re-scattering of SPP modes into far-field modes.

关键词： deep-subwavelength structures laser induced periodic structures large-area fabrication plasmonic subwavelength structures