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solvent engineering towards scalable fabrication of high-quality perovskite films for efficient solar modules

Journal of Energy Chemistry 2023年第5期80卷 689-710,I0015页

作者： Zhaoyi Jiang Binkai Wang Wenjun Zhang Zhichun Yang Mengjie Li Fumeng Ren Tahir Imran Zhenxing Sun Shasha Zhang Yiqiang Zhang Zhiguo Zhao Zonghao Liu Wei Chen Wuhan National Laboratory for Optoelectronics(WNLO) Huazhong University of Science and Technology(HUST)Wuhan 430074HubeiChina China-EU Institute for Clean and Renewable Energy(ICARE) Huazhong University of Science and Technology(HUST)Wuhan 430074HubeiChina State Key Lab of Quantum Optics and Quantum Optics Devices Institute of Laser SpectroscopyShanxi UniversityTaiyuan 030006ShanxiChina Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006ShanxiChina Huaneng Clean Energy Research Institute BeijingChina School of Materials Science and engineering&Henan Institute of Advanced Technology Zhengzhou UniversityZhengzhou 450001HenanChina

Over the last decade,remarkable progress has been made in metal halide perovskite solar cells(PSCs),which have been a focus of emerging photovoltaic techniques and show great potential for ***,the upscaling of small-area PSCs to large-area solar modules to meet the demands of practical applications remains a significant *** scalable production of high-quality perovskite films by a simple,reproducible process is crucial for resolving this ***,the crystallization behavior in the solution-processed fabrication of perovskite films can be strongly influenced by the physicochemical properties of the precursor inks,which are significantly affected by the employed solvents and their interactions with the ***,a comprehensive understanding of solvent engineering for fabricating perovskite films over large areas is urgently *** this paper,we first analyze the role of solvents in the solution-processed fabrication of large-area perovskite films based on the classical crystal nucleation and growth *** efforts in solvent engineering to improve the quality of perovskite films for solar modules are ***,the basic principles and future challenges of solvent system design for scalable fabrication of high-quality perovskite films for efficient solar modules are proposed.

关键词： solvent engineering Scalable fabrication Perovskite film Solar cell Module

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Switch of substrate specificity of hyperthermophilic acylaminoacyl peptidase by combination of protein and solvent engineering

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Protein & Cell 2011年第6期2卷 497-506页

作者： Chang Liu Guangyu Yang Lie Wu Guohe Tian Zuoming Zhang Yan Feng State Key Laboratory of Microbial Metabolism School of Life Sciences and BiotechnologyShanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Molecular Enzymology and engineering of Ministry of Education Jilin UniversityChangchun 130023China Changchun Institute of Biological Products China National Biotec GroupChangchun 130061China

The inherent evolvability of promiscuous enzymes endows them with great potential to be artificially evolved for novel ***,we succeeded in transforming a promiscuous acylaminoacyl peptidase(apAAP)from the hyperthermophilic archaeon Aeropyrum pernix K1 into a specific carboxylesterase by making a single *** order to fulfill the urgent requirement of thermostable lipolytic enzymes,in this paper we describe how the substrate preference of apAAP can be further changed from p-nitrophenyl caprylate(pNP-C8)to p-nitrophenyl laurate(pNP-C12)by protein and solvent *** one round of directed evolution and subsequent saturation mutagenesis at selected residues in the active site,three variants with enhanced activity towards pNP-C12 were ***,a combined mutant W474V/F488G/R526V/T560W was generated,which had the highest catalytic efficiency(kcat/Km)for pNP-C12,about 71-fold higher than the wild *** activity was further increased by solvent engineering,resulting in an activity enhancement of 280-fold compared with the wild type in the presence of 30%*** structural basis for the improved activity was studied by substrate docking and molecular dynamics *** was revealed that W474V and F488G mutations caused a significant change in the geometry of the active center,which may facilitate binding and subsequent hydrolysis of bulky *** conclusion,the combination of protein and solvent engineering may be an effective approach to improve the activities of promiscuous enzymes and could be used to create naturally rare hyperthermophilic enzymes.

关键词： acylaminoacyl peptidase esterase substrate specificity protein engineering solvent engineering

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Elucidating the dynamics of solvent engineering for perovskite solar cells

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Science China Materials 2019年第2期62卷 161-172页

作者： Zulqarnain Arain Cheng Liu Yi Yang M.Mateen Yinke Ren Yong Ding Xuepeng Liu Zulfiqar Ali Manoj Kumar Songyuan Dai Key Laboratory of Novel Thin-Film Solar Cells North China Electric Power University Energy system engineering Dept. Sukkur IBA University Renewable Energy School North China Electric Power University

Researchers working in the field of photovoltaic are exploring novel materials for the efficient solar energy *** prime objective of the discovery of every novel photovoltaic material is to achieve more energy yield with easy fabrication process and less production cost *** solar cells (PSCs)delivering the highest efficiency in the passing years with different stoichiometry and fabrication modification have made this technology a potent candidate for future energy conversion *** now,many studies have shown that the quality of active layer morphology,to a great extent,determines the performance of *** current and potential techniques of solvent engineering for good active layer morphology are mainly debated using primary solvent,co-solvent (Lewis acid-base adduct approach)and solvent *** this review,the dynamics of numerously reported solvents on the morphological characteristics of PSCs active layer are discussed in *** intention is to get a clear understanding of solvent engineering induced modifications on active layer morphology in PSC devices via different crystallization *** last,an attempt is made to draw a framework based on different solvent coordination properties to make it easy for screening the potent solvent contender for desired PSCs precursor for a better and feasible device.

关键词： perovskite solvent engineering Lewis acid-base additive coordination property

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Boosting CsSnI3-based near-infrared perovskite lightemitting diodes performance via solvent coordination engineering

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InfoMat 2024年第5期6卷 58-68页

作者： Yuqing Li Xiang Guan Yuanyuan Meng Jingfu Chen Junpeng Lin Xi Chen Chia-Yun Liu Yaping Zhao Qin Zhang Chengbo Tian Jianxun Lu Zhanhua Wei Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information Displays College of Materials Science and EngineeringHuaqiao UniversityXiamenthe People's Republic of China Division of Physical Science and engineering KAUST Catalysis Center(KCC)King Abdullah University of Science and TechnologyThuwalKingdom of Saudi Arabia

Due to their unique photoelectric properties,nontoxic tin-based perovskites are emerging candidates for efficient near-infrared ***,the facile oxidation of Sn2+and the rapid crystallization rate of tin-based perovskites result in suboptimal film quality,leading to inferior efficiencies of tin-based perovskite light-emitting diodes(Pero-LEDs).In this study,we investigate the influence of commonly used solvents on the quality of the CsSnI3 ***,DMSO exhibits a stronger interaction with SnI2,forming a stable intermediate phase of SnI2·*** intermediate effectively inhibits the oxidation of Sn2+and slows down the crystallization rate,bringing in lower defect state density and higher photoluminescence quantum yield of the pre-pared perovskite ***,the corresponding Pero-LEDs achieve a maximum external quantum efficiency(EQE)of 5.6%,among the most effi-cient near-infrared *** addition,the device processes ultra-low effi-ciency roll-off and high *** research underscores the crucial role of solvent-perovskite coordination in determining film *** find-ings offer valuable guidance for screening solvents to prepare highly efficient and stable tin-based perovskites.

关键词： intermolecular interaction light-emitting diodes solvent engineering tin-based perovskites

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High-efficiency organic solar cells processed from a halogen-free solvent system

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Science China Chemistry 2023年第8期66卷 2380-2388页

作者： Yueling Su Zicheng Ding Rui Zhang Weibing Tang Wenliang Huang Zhichao Wang Kui Zhao Xiaochen Wang Shengzhong(Frank)Liu Yongfang Li 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’an710119China Department of Physics Chemistry and Biology(IFM)Linköping UniversityLinköpingSweden Dalian National Laboratory for Clean Energy iChEMDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian116023China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of SciencesBeijing100190China

The use of non-halogenated solvents for the green manufacture of high-efficiency organic solar cells(OSCs)is important for their future ***,the power conversion efficiency(PCE)of the non-halogenated solvent processed OSCs is generally lower than their halogenated counterpart due to the poor film microstructure caused by the solubility ***,we propose a halogen-free solvent system to optimize film microstructure of the photovoltaic blend based on the polymer donor D18and small-molecule acceptor(SMA)L8-BO towards high-efficiency *** solvent system is consisted of a main solvent carbon disulfide and an additive paraxylene,where the former ensures the good solution-processability and promotes the solution aggregation of L8-BO,and the latter can finely control the phase-separation process by selectively dissolving the *** solvent combination robustly produces a high-quality active layer,i.e.,the bicontinuous networks of donor and acceptor with nano-sized phase-separation and strongπ-π*** the effective charge generation,transport and collection,the resulting device from the non-halogenated solvent system shows a high PCE of 17.50%,which is comparable to that of the device prepared from the halogenated solvent chloroform(ca.17.11%).This article proposes a new strategy for the green fabrication of high-efficiency OSCs to accelerate their industrialization.

关键词： organic solar cells small molecule acceptor film microstructure non-halogenated solvent solvent engineering

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Stable PbS colloidal quantum dot inks enable blade‑coating infrared solar cells

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Frontiers of Optoelectronics 2023年第3期16卷 131-140页

作者： Xinzhao Zhao Mingyu Li Tianjun Ma Jun Yan Gomaa Mohamed Gomaa Khalaf Chao Chen Hsien‑Yi Hsu Haisheng Song Jiang Tang Wuhan National Laboratory for Optoelectronics(WNLO) Huazhong University of Science and Technology(HUST)Wuhan 430074China School of Optical and Electronic Information Huazhong University of Science and Technology(HUST)Wuhan 430074China School of Energy and Environment and Department of Materials Science and engineering City University of Hong KongHong Kong 999077China Wenzhou Advanced Manufacturing Technology Research Institute of Huazhong University of Science and Technology Wenzhou 325035China

Infrared solar cells are more efective than normal bandgap solar cells at reducing the spectral loss in the near-infrared region,thus also at broadening the absorption spectra and improving power conversion *** colloidal quantum dots(QDs)with tunable bandgap are ideal infrared photovoltaic ***,QD solar cell production sufers from small-areabased spin-coating fabrication methods and unstable QD ***,the QD ink stability mechanism was fully investigated according to Lewis acid–base theory and colloid stability *** further studied a mixed solvent system using dimethylformamide and butylamine,compatible with the scalable manufacture of method-blade *** on the ink system,100 cm2 of uniform and dense near-infrared PbS QDs(~0.96 eV)flm was successfully prepared by blade *** average efciencies of above absorber-based devices reached 11.14%under AM1.5G illumination,and the 800 nm-fltered efciency achieved 4.28%.Both were the top values among blade coating method based *** newly developed ink showed excellent stability,and the device performance based on the ink stored for 7 h was similar to that of fresh *** matched solvent system for stable PbS QD ink represents a crucial step toward large area blade coating photoelectric devices.

关键词： PbS quantum dots solvent engineering Colloid stability Blade coating Infrared solar cells

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Highly compact and uniform CH3NH3Sn0.5Pb0.5I3 films for efficient panchromatic planar perovskite solar cells

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Science Bulletin 2016年第20期61卷 1558-1562页

作者： Miaoqiang Lyu Meng Zhang Nathan A. Cooling Yalong Jiao Qiong Wang Jung-Ho Yun Ben Vaughan Gerry Triani Peter Evans Xiaojing Zhou Krishna Feron Aijun Du Paul Dastoor Lianzhou Wang Nanomaterials Centre School of Chemical Engineering and AIBN The University of Queensland St. Lucia BrisbaneQLD 4072 Australia Centre for Organic Electronics University of NewcastleUniversity Drive Callaghan NSW 2308 Australia School of Chemistry Physics and Mechanical EngineeringQueensland University of Technology Garden Point CampusBrisbane QLD 4001 Australia School of Chemistry Queensland University of TechnologyBrisbane QLD 4001 Australia ANSTO Institute of Materials and Engineering PMB 1 MenaiNSW 2234 Australia CSIRO Energy Mayfield West NSW 2304 Australia

An efficient panchromatic planar perovskite solar cell is developed based on highly uniform,lead-reduced CH3NH3Sn0.5Pb0.5I3 perovskite films with full film-coverage on the *** demonstrate here that full-coverage of the CH3NH3Sn0.5Pb0.5I3 films can be developed by a facile chlorobenzene-assisted spin-coating method.A power conversion efficiency of 7 % is achieved using low-temperature processes,which is among the best-reported performance for panchromatic planar perovskite solar cells with a light-absorption over 1,000 nm.

关键词： Metal halide perovskite Mixed metal cations Solar cells Film engineering solvent engineering

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Advances in Intermediates for the Solution-Processing of Perovskite Films

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CCS Chemistry 2024年第3期6卷 585-603页

作者： Ziqiu Ren Binyang Tuo Na Wang Junjie Ma Pengwei Li Yiqiang Zhang Yanlin Song Henan Institute of Advanced Technology College of ChemistryZhengzhou UniversityZhengzhou 450052 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 100190

Owing to its superior efficiency and low cost,the solution-processable perovskite has rapidly become the latest favorite material in the field of *** solution processing significantly reduces the threshold and cost of perovskite solar cells,the intricate composition and nonequilibrium nucleation of the perovskite precursor can result in leaky *** precise control of perovskite nucleation and orientation is a fundamental prerequisite for achieving high-quality perovskite photoactive *** this process,the intermediate species that widely exists either in the precursor or the asprepared film acts as a transitional state for perovskite nucleation and growth from solution to solid,presenting an opportunity for controlling perovskite ***,we present an overview of the advancements in intermediates for solution-processing perovskite films to gain insights into the growth and manipulation of polycrystalline perovskite films.

关键词： perovskite solar cells intermediates solvent engineering phase transformation nucleation and growth

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Curing the fundamental issue of impurity phases in two-step solution-processed CsPbBr3 perovskite films

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Science Bulletin 2020年第9期65卷 726-737,M0003,M0004页

作者： Jianyong Feng Xiaopeng Han Huiting Huang Qingxiao Meng Zhi Zhu Tao Yu Zhaosheng Li Zhigang Zou Collaborative Innovation Center of Advanced Microstructures National Laboratory of Solid State MicrostructuresCollege of Engineering and Applied SciencesNanjing UniversityNanjing 210093China School of Physics Nanjing UniversityNanjing 210093China

Inorganic lead halide perovskite CsPbBr3 offers attractive photophysical properties and phase stability for high-performance optoelectronic ***,CsPbBr3 films produced by the classic solution-based two-step method are always accompanied with impurity phases of CsPb2Br5 and Cs4PbBr6,which represents a major efficiency-limiting factor for future advances of CsPbBr3-based *** challenge lies in the complexity of the Cs-Pb-Br phase system,requiring both spatially and temporally precise control of the precursor stoichiometry during solution-phase growth of CsPbBr3 *** adopting 2-methoxyethanol as the solution conversion medium instead of commonly applied methanol,the reaction between CsBr and PbBr2 can be finely controlled to yield single phase CsPbBr3 films within a few minutes;extending the solution-conversion step to 24 h does not alter the phase purity of resulting CsPbBr3 *** present work paves the way to regulate the crystal growth behaviors of two-step solution-processed CsPbBr3 films by simple solvent engineering.

关键词： Inorganic perovskite CsPbBr3 film Two-step method Phase purity solvent engineering

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Weakly solvating electrolytes for next-generation lithium batteries:design principles and recent advances

Energy Materials and Devices

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Energy Materials and Devices 2023年第1期1卷 4-19,3页

作者： Zhijie Wang Biao Zhang Department of Applied Physics&Research Institute for Smart Energy The Hong Kong Polytechnic UniversityHung HomHong Kong 999077China

Lithium(Li)batteries are major players in the power source market of electric vehicles and portable electronic *** are critical to determining the performance of Li *** electrolytes fall behind the ever-growing demands for fast-charging,wide-temperature operation,and safety properties of Li *** the great success of(localized)high-concentration electrolytes,they still suffer from disadvantages,such as low ionic conductivity and high *** solvating electrolytes(WSEs),also known as low-solvating electrolytes,offer another solution to these challenges,and they have attracted intensive research interests in recent *** contribution reviews the working mechanisms,design principles,and recent advances in the development of WSEs.A summary and perspective regarding future research directions in this field is also *** insights will benefit academic and industrial communities in the design of safe and high-performance next-generation Li batteries.

关键词： weakly solvating electrolytes solvation structure salt design solvent engineering lithium batteries

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