检索结果-南通市图书馆

Dopant-free hole transporting materials with supramolecular interactions and reverse diffusion for efficient and modular p-i-n perovskite solar cells

引用

Science China Chemistry 2020年第7期63卷 987-996页

作者： Rongming Xue Moyao Zhang Deying Luo Weijie Chen Rui Zhu Yang(Michael)Yang Yaowen Li Yongfang Li Laboratory of Advanced Optoelectronic Materials College of ChemistryChemical Engineering and Materials ScienceSoochow UniversitySuzhou 215123China State Key Laboratory fo r Artificial Microstructure and Mesoscopic Physics Department of PhysicsPeking UniversityBeijing 100871China State Key Laboratory of Modern Optical Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou310027China Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190China

The rational design of dopant-free organic hole-transporting layer(HTL) materials is still a challenge for realizing high-efficient and stable p-i-n planar perovskite solar cells(pero-SCs). Here, we synthesized two π-conjugated small-molecule HTL materials through tailoring the backbone and conjugated side chain to carefully control molecular conformation. The resultant BDT-TPAs Th containing a planar fused benzo[1,2-b:4,5-b′]dithiophene(BDT) core and a conjugated thiophene side chain showed the planar conformation. X-ray crystallography showed a favorable stacking model in solid states under the parallel-displaced π-πand additional S-π weak-bond supramolecular interactions, thus achieving an obviously increased hole mobility without *** an HTL material in p-i-n planar pero-SCs, the marginal solubility of BDT-TPA-s Th enabled inverse diffusion into the perovskite precursor solution for assisting the subsequent perovskite film growth and passivating the uncoordinated Pb2+ ion defects. As a result, the planar p-i-n pero-SCs exhibited a champion power conversion efficiency(PCE) of 20.5% and enhanced moisture stability. Importantly, the BDT-TPA-s Th HTL material also showed weak thickness-photovoltaic dependence, and the pero-SCs with blade-coated BDT-TPA-s Th as a HTL achieved a 15.30% PCE for the 1-cm2 modularized device. This HTL material design strategy is expected to pave the way toward high-performance, dopant-free and printing large-area planar p-i-n pero-SCs.

关键词： hole-transporting materials supramolecular interactions reverse diffusion p-i-n planar perovskite solar cells

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

Tuning host-guest binding model by different intramolecular alkyl chain lengths in tripodal hosts:An evidence on structure control supramolecular interactions

引用

Chinese Chemical Letters 2023年第1期34卷 378-381页

作者： Zheng-Hua Zhang You-Ming Zhang Wen-Juan Qu Bingbing Shi Hong Yao Tai-Bao Wei Key Laboratory of Eco-environmental Polymer Materials of Gansu Province College of Chemistry and Chemical EngineeringNorthwest Normal UniversityLanzhou 730070China Gansu Natural Energy Research Institute Lanzhou 730046China

supramolecular chemistry has received considerable attention in host-guest *** structureresponse relationship of host-guest recognition system is a meaningful ***,a series of tripodal nitrogen mustard derivatives(TMs)have been developed in this *** rationally design the intramolecular alkyl chain lengths of host,the host-guest binding model have been successfully tuned,which underwent a transformation fromπ-πto multiple hydrogen *** process enhances the host-guest binding force and recognition efficiency.

关键词： Host-guest recognition supramolecular interactions Fluorescent Intramolecular alkyl chain Aggregation induced emission

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

Proteinaceous Fibers with Outstanding Mechanical Properties Manipulated by supramolecular interactions

引用

CCS Chemistry 2021年第6期3卷 1669-1677页

作者： Jing Sun Bo Li Fan Wang Jing Feng Chao Ma Kai Liu Hongjie Zhang Department of Chemistry Tsinghua UniversityBeijing 100084 Institute of Organic Chemistry I University of UlmUlm 89081 State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022

Proteinaceous fibers based on spidroins have attracted widespread attention due to their lightweight and mechanically strong ***,mechanical modulation is mainly dependent on the ultrahigh molecular weight of recombinant *** makes it difficult to construct and express the target *** is thus significant to develop alternative strategies for the fabrication of robust biological ***,we demonstrate one new type of engineered protein fibers using electrostatic complexation of the cationic elastins and anionic dihydroxyphenylalanine ***,the mechanical performance of the resulting fibers can be modulated by multiple supramolecular interactions in the system including electrostatic force,hydrogen bonding,metal coordination,cation-πand other aromatic ***,significant alternation of the fibers’breaking strength(from 32 to 160 MPa),Young’s modulus(from 0.8 to 17 GPa),and toughness(from 1.2 to 99 MJ·m-3)has been ***,the fibers exhibit high plasticity;for example,the formation of different helical structures,and strong fluorescence after the introduction of Tb ***,this study offers new strategies for the mechanical regulation of engineered protein fibers.

关键词： biological fiber mechanical performance plasticity engineered protein supramolecular interactions

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

Two Zinc Architectures:A Mononuclear Complex and a 2D Wave-like Organic-inorganic Hybrid Layer

引用

Chinese Journal of Structural Chemistry 2010年第12期29卷 1834-1840页

作者：靳梅芳戴昉纳孙道峰 Key Lab for Colloid and Interface Chemistry of Education Ministry Department of ChemistryShandong University

Self-assembly of Zn（NO3）2·6H2O and 2,3,5,6-tetrabromoterephthalic acid（H2TBTA） gave rise to two new zinc metal-organic frameworks,Zn（HTBTA）2（phen）2·H2O（1） and Zn（TBTA）1/2（μ2-OH）（H2O）·0.25EtOH（2）.Complex 1 is a mononuclear *** hydrogen bonding interactions further connect the mononuclear molecules to generate a 2D supramolecular *** 2 is a 2D organic-inorganic hybrid layer framework constructed from 1D rod-shaped secondary building units.

关键词： supramolecular architecture zinc metal-organic framework mixed organic ligands supramolecular interactions

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

Aminothiazolyl norfloxacin analogs: Synthesis, antibacterial activity and biosupramolecular interactions

Aminothiazolyl norfloxacin analogs: Synthesis, antibacterial...

引用

全国第十九届大环化学暨第十一届超分子化学学术讨论会

作者：王亮亮 Narsaiah Battini Swetha Kameswari Maddili 周成合 Institute of Bioorganic&Medicinal Chemistry School of Chemistry and Chemical EngineeringSouthwest University CSIR-Indian Institute of Integrative Medicine (IIIM)

＜正＞A series of aminothiazolyl Norfloxacin analogs were designed and *** of the prepared compounds exhibited good antibacterial *** research revealed that the active molecule 3 could effectively intercalate into *** DNA to form a steady supramolecular complex, which might block DNA replication to exert their powerful antimicrobial *** Norfloxacin analogs could bind with topoisomerase Ⅳ-DNA through hydrogen bonds and π–π stacking.

关键词： norfloxacin aminothiazole supramolecular interactions DNA topoisomerase Ⅳ

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Solid-state room-temperature phosphorescence activated by the end-capping strategy of cyano groups

Aggregate

引用

Aggregate 2024年第4期5卷 367-375页

作者： Jia-Lin Yu Zhaojun Chen Yu-Qi Zhu Yu-Long Jin Xin Wang Ming-Xue Wu Xing-Huo Wang Ying-Wei Yang Institute for Sustainable Energy and Resources College of Chemistry and Chemical EngineeringQingdao UniversityQingdaoP.R.China International Joint Research Laboratory of Nano-Macro Architecture Chemistry College of ChemistryJilin UniversityChangchunP.R.China

Avoiding the tedious process of crystal cultivation and directly obtaining organic crystals with desirable phosphorescent performance is of great signiﬁcance for studying their structure and ***,a set of benzophenone-cored phos-phors with bright green afterglow are obtained on a large scale through in-situ generation via an end-capping strategy to suppress non-radiative triplet excitons and reinforce the intermolecular *** ordered arrangement of phosphors with alkyl-cyano groups as regulators is crucial for the enhancement of room-temperature phosphorescence(RTP)emission,which has been further veriﬁed by the attenuated lifetimes in isolated states through the formation of inclusion complexes upon binding with pillar[5]***,the hierarchical interactions of phos-phors,including hydrogen bonding,π-πstacking interactions,and van der Waals forces,are quantiﬁed by crystal structures and theoretical calculation to deeply inter-pret the origins of RTP *** this study,we provide a potential strategy for the direct acquisition of crystalline organic phosphors and modulation of RTP.

关键词： alkyl-chain length selectivity pillar[n]arenes room-temperature phosphorescence supramolecular interactions

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

Synthesis and Crystal Structure of a Mixed-ligand Manganese(Ⅱ) Complex Containing Abundant Hydrogen-bonding interactions

引用

Chinese Journal of Structural Chemistry 2011年第10期30卷 1412-1418页

作者：马成丙胡明强陈惠陈昌能 State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences

A new mixed-ligand Mn（II）complex,namely [Mn（bipy）2（Huca）]·5H2O（1,bipy = 2,2＇-bipyridine,and H3uca = uracil-5-carboxylic acid）has been prepared and characterized by single-crystal X-ray diffraction,FT-IR spectroscopy and thermogravimetric *** crystallizes in monoclinic,space group C2/c with a = 23.597（8）,b = 16.434（5）,c = 15.531（6）,β = 112.785（6）o,C25H28MnN6O9,Mr = 611.47,V = 5553（3）3,Z = 8,μ = 0.538,Dc = 1.463 g/cm3,F（000）= 2536,R = 0.0441 and wR = 0.1230 for all 5227 observed reflections（I 2σ（I））.The manganese（II）center is surrounded by three bidentate chelating ligands,and it displays a severely distorted octahedral geometry,with cis angles ranging from 72.14（6）to 109.78（6）*** intermolecular hydrogen bonds link the [Mn（bipy）2（Huca）] monomers and lattice water molecules to yield a three-dimensional supramolecular *** shows complete removal of all lattice water molecules above 270 ℃.

关键词： manganese complex synthesis crystal structure supramolecular interactions

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

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

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：