检索结果-南通市图书馆

Advances to Stabilize Photoactive Phase of FAPbI_(3)Perovskite

Chinese Journal of Chemistry 2023年第20期41卷 2730-2745页

作者： Kailin Li huanping zhou Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials Key Laboratory of Polymer Chemistry and Physics of Ministry of EducationSchool of Materials Science and EngineeringPeking UniversityBeijing100871 China

Recently,hybrid organic-inorganic perovskite materials have drawn widespread attention because of their outstanding optoelectrical properties(i.e.,high absorption coefficient,long carrier diffusion distance),hence they are suitable light-absorbing materials for photovoltaic *** all perovskite materials,formamidinium lead iodide(FAPbI3)based solar cells exhibit impressive power conversion efficiency(PCE)at laboratory stage,showing great potential to compete with silicon-based solar ***,FAPbI3 still suffers from poor phase stability which is the prior problem that needs to be addressed before its further *** be precise,the photoactive phase(αphase)is thermodynamically metastable at room temperature,which not only makesαphase tend to transform into photoinactive phase(δphase),but also causes competitive crystallization between two phases during the film preparation process,making it hard to fabricate pureα-FAPbI3 *** our review,we summarized key factors that are vital for obtaining high-quality FAPbI3 perovskite thin films and enhancing the stability of FAPbI3 photoactive *** of all,precursor solution stability is of great importance since the conditions of precursor solution determine the nucleation and crystal growth process of *** introducing coordinating additives,using FAPbI3 single crystal as raw material or applying co-solution strategy,the impurities formed by side reaction during precursor solution aging can be effectively suppressed,thus the stability of FAPbI3 solution can be greatly ***,the crystallization kinetics of FAPbI3 have been systematically manipulated to obtain dense and large grain size perovskite *** introducing intermediate phase,regulating the surface energy,and retarding the crystal growth of FAPbI3 in crystallization process,not only films without pinholes and fewer grain boundaries can be obtained,the pre-formedδphase at room temperature can also be well-s

关键词： FAPbI_(3)perovskite Stability Precursor Crystallization Thermodynamics

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Repair Strategies for Perovskite Solar Cells

引用

Chemical Research in Chinese Universities 2021年第5期37卷 1055-1066页

作者： LIU Huifen zhou huanping Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials&Key Laboratory of Polymer Chemistry and Physics of Ministry of Education BIC-ESATSchool of Materials Science and EngineeringPeking UniversityBeijing100871P.R.China

In recent years,organic-inorganic hybrid halide perovskite solar cells(PSCs)have obtained rapid development due to their excellent optoelectronic properties and low fabrication ***,owing to the environmental sensitivity of perovskite materials,the instability of PSCs is the key issue hindering its *** feasible strategy to repair the degraded PSCs stands for effective and unique means to prolong the operational lifetime of PSCs.

关键词： perovskite lifetime inorganic

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Electrodeposition of Zn(O,S)(zinc oxysulfide)thin films:Exploiting its thermodynamic and kinetic processes with incorporation of tartaric acid

引用

Journal of Energy Chemistry 2018年第3期27卷 913-922页

作者： Qiao Cheng Dong Wang huanping zhou Department of Energy and Resources Engineerirzg College of EngineeringPeking UniversityBeUing 100871China

Zn（O,S）（zinc oxysulfide） is an important chalcogenide material recently reported to be potentially applied as electrode buffers in thin film solar cells. Both vacuum and solution approaches have enabled the fabrication of Zn（O,S） films. However they either require extreme conditions and high energy consumption for synthesis, or suffer from lack of controllability mainly due to the thermodynamic and kinetic distinction between Zn O and Zn S during film growth. Here we demonstrated an effective electrodeposition route to obtain high-quality Zn（O,S） thin films in a controllable manner. Importantly, tartaric acid was employed as a secondary complexing agent in the electrolyte to improve the film morphology, as well as to adjust other key properties such as composition and absorption. To elucidate the vital role that tartaric acid played, thermodynamic and kinetic processes of electrodeposition was investigated and discussed in detail. The accumulative contribution has shed light on further exploit of Zn（O,S） with tunable properties and optimization of the corresponding electrodeposition process, for the application in thin film solar cells.

关键词： Zinc oxysulfide Zn(O S) Electrodeposition Tartaric acid

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Ion migration in halide perovskite solar cells:Mechanism,characterization,impact and suppression

引用

Journal of Energy Chemistry 2021年第12期30卷 528-549,I0013页

作者： Huachao Zai Yue Ma Qi Chen huanping zhou Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials Key Laboratory of Polymer Chemistry and Physics of Ministry of EducationBIC-ESATSchool of Materials Science and EngineeringPeking UniversityBeijing 100871China Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications Experimental Center of Advanced MaterialsSchool of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China

Metal halide perovskites are emerging as the most promising candidate for the next-generation Photovoltaics(PV)materials,due to their superior optoelectronic properties and low ***,the resulting Perovskite solar cells(PSCs)suffer from poor *** particular,the temperature and light activated ionic defects within the perovskite lattice,as well as electric-field-induced migration of ionic defects,make the PSCs unstable at operating condition,even with device *** is no doubt that the investigation of ion migration is crucial for the development of PSCs with high intrinsic *** this review,we first briefly introduce the origin and pathways of ion migration,and also the essential characterization methods to identify ion ***,we discuss the impact of ion migration on the perovskite films and cells with respect to photoelectric properties and ***,several representative strategies to suppress ion migration are systematically summarized in the context of composition engineering,additive engineering and interface engineering,with an in-depth understanding on the underlying mechanisms which may provide more clues for further fabrication of PSCs with improved ***,a perspective with some suggestion on future research directions and chemical approaches are provided to alleviate ion migration in perovskite materials and the entire devices.

关键词： Ion migration Perovskite Solar cell Defect Stability

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Silver nanowires with semiconducting ligands for low- temperature transparent conductors

引用

Nano Research 2016年第2期9卷 392-400页

作者： Brion Bob Ariella Machness Tze-Bin Song huanping zhou Choong-Heui Chung Yang Yang Department of Materials Science and Engineering and California NanoSystems Institute University of California Los Angeles LosAngeles CA 90025 USA Department of Materials Science and Engineering Hanbat National University Daejeon 305-719 Republic of Korea

Metal nanowire networks represent a promising candidate for the rapid fabrication of transparent electrodes with high transmission and low sheet-resistance values at very low deposition temperatures. A commonly encountered challenge in the formation of conductive nanowire electrodes is establishing high-quality electronic contact between nanowires to facilitate long-range current transport through the network. A new system involving nanowire ligand removal and replacement with a semiconducting sol-gel tin oxide matrix has enabled the fabrication of high-performance transparent electrodes at dramatically reduced temperatures with minimal need for post-deposition treatment.

关键词： silver nanowires sol-gel transparent electrodes nanocomposites

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

One-dimensional perovskite-based Li-ion battery anodes with high capacity and cycling stability

引用

Journal of Energy Chemistry 2022年第9期31卷 73-80,I0003页

作者： Hua Kong Jiafeng Wu Ying Han Yu Zhang Ning zhou Qi Chen Wentao Sun huanping zhou Lian-Mao Peng Key Laboratory for the Physics and Chemistry of Nanodevices School of ElectronicsPeking UniversityBeijing 100871China School of Materials Science and Engineering Peking UniversityBeijing 100871China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China

Perovskite,widely used in solar cells,has also been proven to be potential candidate for effective energy storage *** progress indicates the promise of perovskite for battery applications,however,the specific capacity of the resulting lithium-ion batteries must be further ***,by adjusting the dimensionality of perovskite,we fabricated high-performing one-dimensional hybrid perovskite C_(4)H_(20)N_(4)PbBr_(6) based lithium-ion batteries,with the first specific capacity as high as 1632.8 mAh g^(-1)and a stable specific capacity of 598.0 mAh g^(-1)after 50 cycles under the condition of the constant current density of 150 mA g^(-1).The stable specific capacity is 2.36 times higher than that of the three-dimensional perovskite CH_(3)NH_(3)PbBr_(3)(253.2 mAh g^(-1)),and 1.6 times higher than that of the commercialized graphite electrode(372 mAh g^(-1)).The structure difference and the associated ion diffusivity are revealed to substantially affect the specific capacity of the perovskite-based lithium-ion *** study opens up new directions for the applications of hybrid perovskites in energy storage devices.

关键词： Li-ion battery One-dimensional perovskite materials

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The investigation of an amidine-based additive in the perovskite films and solar cells

引用

Journal of Semiconductors 2017年第1期38卷 48-53页

作者： Guanhaojie Zheng Liang Li Ligang Wang Xingyu Gao huanping zhou Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201204China Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing 100871China

Here,we introduced acetamidine（C2H3N2H3,Aa）-based salt as an additive in the fabrication of perovskite（CH3NH3PW3）layer for perovskite solar *** was found that as an amidine-based salt,this additive successfully enhanced the crystallinity of CH3NH3PW3 and helped to form smooth and uniform films with comparable grain size and full ***,perovskite film with additive showed a much longer carrier lifetime and an obviously enhanced open-circuit voltage in the corresponding devices,indicating that the acetamidine-based salt can reduce the carrier recombination in both the film and *** further demonstrate a promising perovskite device based on acetamidine salt by using a configuration of ITOATiO2/Perovskite/Spiro-OMeTAD/Au under 〈 150 ℃ fabrication condition.A power conversion efficiency（PCE）of 16.54%was achieved,which is much higher than the control device without acetamidine *** results present a simple method for film quality optimization of perovskite to further improve photovoltaic performances of perovskite solar cells,which may also benefit the exploration of A cation in perovskite materials.

关键词： acetamidine crystallinity open-circuit voltage perovskite solar cell

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Solution processed inorganic V20x as interfacial function materials for inverted planar-heterojunction perovskite solar cells with enhanced efficiency

引用

Nano Research 2016年第10期9卷 2960-2971页

作者： Haitao Peng Weihai Sun Yunlong Li Senyun Ye Haixia Rao Weibo Yan huanping zhou Zuqiang Bian Chunhui Huang Department of Energy and Resources Engineering College of Engineering Peking University Beijing 100871 China State Key Laboratory of Rare Earth Materials Chemistry and Applications Peking University Beijing 10087 I China Department of Materials Science and Engineering College of Engineering Peking University Beijing 100871 China

An inverted planar heterojunction perovskite solar cell （PSC） is one of the most competitive photovoltaic devices exhibiting a high power conversion efficiency （PCE） and nearly free hysteresis in the voltage-current output. However, the band alignment between the transport materials and the perovskite absorber has not been optimized, resulting in a lower open-circuit voltage （Voc） than that of regular PSCs. To address this issue, we tune the band alignment in perovskite photovoltaic architecture by introducing bilayer structured transport materials, e.g., the hole transport material poly（ethylenedioxythiophene）：poly（styrene sulfonate）（PEDOT：PSS）/V2Os. In this study, solution processed inorganic V2Ox interlayer is incorporated into PEDOT：PSS for achieving improved film surface properties as well as optical and electrical properties. For example, the work function （WF） was changed from 5.1 to 5.4 eV. A remarkably high PCE of 17.5% with nearly free hysteresis and a stabilized efficiency of 17.1% have been achieved. Electronic impedance spectra （EIS） demonstrate a significant increase in the recombination resistance after introducing the interlayer, associated with the high Voc output value of 1.05 V. Transient photocurrent and photovoltage measurements indicate that a comparable charge transport process and an inhibited recombination process occur in the PSC with the introduction of the V20x interlayer.

关键词： perovskite solar cells vanadium oxide hole transport layer band alignment hysteresis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Balancing Energy-Level Difference for Efficient n-i-p Perovskite Solar Cells with Cu Electrode

引用

Energy Material Advances 2022年第1期2022卷 157-164页

作者： Ziqi Xu Nengxu Li Xiuxiu Niu Huifen Liu Guilin Liu Qi Chen huanping zhou Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials Key Laboratory of Polymer Chemistry and Physics of Ministry of EducationBIC-ESATSchool of Materials Science and EngineeringPeking UniversityBeijing 100871China China Automotive Technology and Research Center Co. Ltd.TianjinChina Experimental Centre for Advanced Materials School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China School of Science Jiangnan UniversityWuxiJiangsu 214122China

Developing low cost and stable metal electrode is crucial for mass production of perovskite solar cells(PSCs).As an earthabundant element,Cu becomes an alternative candidate to replace noble metal electrodes such as Au and Ag,due to its comparable physiochemical properties with simultaneously good stability and low ***,the undesirable band alignment associated with the device architecture impedes the exploration of efficient Cu-based n-i-p ***,we demonstrated the ability of tuning the Fermi level(E_(F))of hole transport layer(HTL)to reduce the energy level difference(Schottky barrier)between HTLs and ***,we identified that the balance of energy level difference between HTL and adjacent layers(including perovskite and Cu)is crucial to efficient carrier transportation and photovoltaic performance improvement in the *** the optimized condition,we achieve a device power conversion efficiency(PCE)of 20.10%,which is the highest on the planar n-i-p PSCs with Cu ***,the Cu-based PSCs can maintain 92%of their initial efficiency after 1000 h storage,which is comparable with Au-based *** present work not only extends the understanding on the band alignment of neighboring semiconductor functional layer in the device architecture to improve the resulting performance but also suggests great potential of Cu electrode for application in PSCs community.

关键词： perovskite alignment electrode

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Progress in flexible perovskite solar cells with improved efficiency

引用

Journal of Semiconductors 2021年第10期42卷 103-118页

作者： Hua Kong Wentao Sun huanping zhou School of Materials Science and Engineering Peking UniversityBeijing 100871China Key Laboratory for the Physics and Chemistry of Nanodevices Department of Electronics Peking UniversityBeijing 100871China

Perovskite solar cell has emerged as a promising candidate in flexible electronics due to its high mechanical flexibility,excellent optoelectronic properties,light weight and low *** the rapid development of the device structure and materials processing,the flexible perovskite solar cells(FPSCs)deliver 21.1%power conversion *** review introduces the latest developments in the efficiency and stability of FPSCs,including flexible substrates,carrier transport layers,perovskite films and *** suggestions on how to further improve the efficiency,environmental and mechanical stability of FPSCs are ***,we considered that to elevate the performance of FPSCs,it is crucial to substantially improve film quality of each functional layer,develop more boost encapsulation approach and explore flexible transparent electrodes with high conductivity,transmittance,low cost and expandable processability.

关键词： perovskite solar cells flexible electronics thin film deposition carrier transport

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：