检索结果-南通市图书馆

Bifunctional bridging capping layer enables 24.5% efficiency of perovskite solar cells with polymer-based hole transport materials

引用

Science China chemistry 2024年

作者： Can Zhu Yiyang Wang Lei Meng Beibei Qiu Jing Li Shucheng Qin Ke Hu Xin Jiang Wenbin Lai Minchao Liu Zhe Liu Chenxing Lu Jinyuan Zhang Yongfang Li Beijing National laboratory for Molecular Sciences CAS Key Laboratory of Organic SolidsInstitute of ChemistryChinese Academy of Sciences School of Chemical Science University of Chinese Academy of Sciences key laboratory of Solid State optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information EngineeringZhejiang Normal University key laboratory of photochemical conversion and optoelectronic materials Technical Institute of Physics and ChemistryChinese Academy of Sciences laboratory of Advanced optoelectronic materials College of ChemistryChemical Engineering and Materials ScienceSoochow University

Developing a bridge capping layer between perovskite and hole transport layer materials(HTMs) in the n-i-p perovskite solar cells(pero-SCs) is an effective approach to modify the morphology of HTMs and passivate the perovskite ***, we select the quinoxaline-based bifunctional passivation agent, quinoxalin-6-yl-methylamine hydrochloride(QxMACl),as the bridging layer, and a D-A copolymer PBQ12 containing the same quinoxaline unit as an HTM for the n-i-p pero-SCs. Due to the π-π stacking among the common quinoxaline units in the bridge layer and HTM, QxMACl induces the π-π stacking of the PBQ12 film and improves the film morphology of HTMs with better conductivity. Additionally, QxMACl can effectively passivate the perovskite surface, and PBQ12 possesses appropriate energy levels and high hole mobility. The pero-SCs based on FAPbI3with PBQ12/QxMACl treatment showed a higher power conversion efficiency(PCE) of 24.05% and outstanding stability, maintaining 95.4% and 92.1% of its initial PCE after 750 h of storage and after over 800 h of thermal annealing at85 °C, respectively. To further enhance the PCE of the PBQ12/QxMACl-based devices, we developed a non-metal ion dopant for the PBQ12 HTM. Through trace doping of PBQ12 HTM by the non-metal ion dopant, the PCE of the PBQ12/QxMACl-based devices reached 25.24%(the calibrated PCE of 24.55% by the National institute of Metrology, China).

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Dilute Aqueous-Aprotic Electrolyte Towards Robust Zn-Ion Hybrid Supercapacitor with High Operation Voltage and Long Lifespan

引用

Nano-Micro Letters 2024年第9期16卷 1-12页

作者： Shuilin Wu Yibing Yang Mingzi Sun Tian Zhang Shaozhuan Huang Daohong Zhang Bolong Huang Pengfei Wang Wenjun Zhang key laboratory of Catalysis and Energy materials chemistry of Ministry of Education&Hubei key laboratory of Catalysis and materials Science South-Central Minzu UniversityWuhan 430074People’s Republic of China Department of materials Science and Engineering and Center of Super‑Diamond and Advanced FilmsCity University of Hong Kong83 Tat Chee AvenueKowloon TongHong Kong SARPeople’s Republic of China Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong SARPeople’s Republic of China key laboratory of photochemical conversion and optoelectronic materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijingPeople’s Republic of China

With the merits of the high energy density of batteries and power density of supercapacitors,the aqueous Zn-ion hybrid supercapacitors emerge as a promising candidate for applications where both rapid energy delivery and moderate energy storage are ***,the narrow electrochemical window of aqueous electrolytes induces severe side reactions on the Zn metal anode and shortens its *** also limits the operation voltage and energy density of the Zn-ion hybrid ***'water in salt'electrolytes can effectively broaden their electrochemical windows,but this is at the expense of high cost,low ionic conductivity,and narrow temperature compatibility,compromising the electrochemical performance of the Zn-ion hybrid ***,designing a new electrolyte to balance these factors towards high-performance Zn-ion hybrid supercapacitors is urgent and *** developed a dilute water/acetonitrile electrolyte(0.5 m Zn(CF_(3)SO_(3))_(2)+1 m LiTFSI-H_(2)O/AN)for Zn-ion hybrid supercapacitors,which simultaneously exhibited expanded electrochemical window,decent ionic conductivity,and broad temperature *** this electrolyte,the hydration shells and hydrogen bonds are significantly modulated by the acetonitrile and *** a result,a Zn-ion hybrid supercapacitor with such an electrolyte demonstrates a high operating voltage up to 2.2 V and long lifespan beyond 120,000 cycles.

关键词： Zn-ion supercapacitors Zn metal anode Electrolyte engineering Hydrogen bonds Solvation structures

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

Photoluminescent nickel(Ⅱ)carbene complexes with ligand-to-ligand charge-transfer excited states

引用

Chinese Chemical Letters 2024年第1期35卷 357-360页

作者： Chun-Liang Hou Jia-Xi Song Xiaoyong Chang Yong Chen key laboratory of photochemical conversion and optoelectronic materials&CAS-HKU Joint laboratory on New materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China Department of chemistry Southern University of Science and TechnologyShenzhen 518055China

While nickel(II)complexes have been widely used as catalysts for carbon-carbon coupling reactions,the exploration of their photophysical and photochemical properties is still in the ***,a series of square-planar Ni(II)complexes[(diNHC)NiX2]bearing chelating benzimidazole-based bis(N-heterocyclic carbene)ligands and varying anionic coligands(1,X=Cl;2,X=Br;3,X=I)are synthesized and structurally *** solid state,both 1 and 2 exhibit orange-red photoluminescence under ambient *** photophysical and electrochemical measurements along with density functional theory(DFT)calculations reveal that the low-energy emissions can be attributed to singlet excited states with ligand-to-ligand charge-transfer(LLCT)*** work suggests that strong-field N-heterocyclic carbene ligands play a crucial role to achieve the luminescence of Ni(II)complexes.

关键词： Nickel(II)complexes N-Heterocyclic carbene Luminescence Ligand-to-ligand charge-transfer character Low-lying d-d excited states

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

FRET-based two-photon benzo[a]phenothiazinium photosensitizer for fluorescence imaging-guided photodynamic therapy

引用

Chinese Chemical Letters 2024年第7期35卷 325-328页

作者： Yiling Li Zekun Gao Xiuxiu Yue Minhuan Lan Xiuli Zheng Benhua Wang Shuang Zhao Xiangzhi Song College of chemistry&Chemical Engineering Central South UniversityChangsha 410083China key laboratory of photochemical conversion and optoelectronic materials and City U-CAS Joint laboratory of Functional materials and Devices Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China Department of Dermatology Xiangya HospitalCentral South UniversityChangsha 410083China

To overcome the conflict between the long-wavelength excitation and high singlet oxygen quantum yield of photosensitizers,we conjugated a two-photon fluorophore,tetrahydroquinoxaline coumarin(TQ),and an efficient photodynamic therapeutic agent,benzo[a]phenothiazinium(NBS-NH_(2)),through a hexamethylene linker to build a two-photon photosensitizer,*** TQ-NBS,TQ served as an energy donor and NBS-NH_(2) acted as an energy acceptor;and TQ-NBS was a F?rster resonance energy transfer(FRET)cassette with a 92.8%*** large two-photon absorption cross-section of TQ allowed photosensitizer TQ-NBS to work in a 900 nm two-photon excitation(TPE)mode,which greatly benefited the deep tissue penetration in PDT ***,the excellent phototoxicity and near-infrared fluorescence of NBS-NH2was kept in TQ-NBS under a TPE mode via a FRET *** TQ-NBS exhibited a high phototoxic efficacy in living cells and tumor-bearing mice.

关键词： Photodynamic therapy Two-photon excitation FRET-based photosensitizer Singlet oxygen Near-infrared fluorescence

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

Unveiling the critical role of TiO_(2)-supported atomically dispersed Cu species for enhanced photofixation of N_(2)to nitrate

引用

Fundamental Research 2024年第4期4卷 934-940页

作者： Dong Li Yunxuan Zhao Chao Zhou Li-Ping Zhang Junwang Tang Tierui Zhang key laboratory of photochemical conversion and optoelectronic materials Technical Institute of Physics and ChemistryChinese Academy of SciencesBejing 100190China Center of materials Science and optoelectronics Engineering University of Chinese Academy of SciencesBejing 100049China School of Future Technology University of Chinese Academy of SciencesBejing 100049China Department of Chemical Engineering University College LondonLondon WC1E7JEUnited Kingdom

Nitrate products are widely used in manufacturing as crucial raw materials and *** traditional nitrate synthesis process involves high energy consumption and emission,thereby opposing the goals of zero-carbon emission and green ***,a sustainable roadmap for nitrate synthesis that uses green energy input,clean N sources,and direct catalytic processes is urgently required(e.g.,developing a novel photosynthesis system).Here,we synthesized TiO2-supported atomically dispersed Cu species for N_(2)photofixation to nitrate in a flow *** optimized photocatalyst yielded a high nitrate photosynthesis rate of 0.93μmol h-1 and selectivity of~90%,which is superior to most of the values reported thus ***,experimental results and in-situ investigations revealed that the atomically dispersed Cu sites in the as-designed sample significantly enhanced the separation and transfer efficiency of photogenerated carriers,adsorption and activation of reactants,and the formation of chemisorbed O_(x)intermediates,thereby realizing the excellent photofixation of N_(2)to nitrate.

关键词： N_(2) photofixation TiO_(2) Nitrate photosynthesis Cu species NO_(x),intermediates

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

富勒烯/卟啉组装体内协同增强的电荷生成与转移实现NAD+高效再生

引用

Science China materials 2024年第1期67卷 188-196页

作者：蒋颖王冲华紫辉宋玉朋乌兰其其格吴波王春儒 Beijing National laboratory for Molecular Sciences Key Laboratory of Molecular Nanostructure and NanotechnologyInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China key laboratory of photochemical conversion and optoelectronic materials and CityU-CAS Joint laboratory of Functional materials and Devices Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China College of chemistry and Life Sciences Chifeng UniversityChifeng 024000China

昂贵的辅因子烟酰胺腺嘌呤二核苷酸(NAD^(+))是限制酶催化商业化应用的主要障碍,因此高效再生NAD^(+)具有重要意义.本文利用液液界面沉积法制备了一种富勒烯-锌卟啉光催化剂(C_(60)-ZnTPP),通过光生空穴氧化NADH再生NAD^(+).C_(60)-ZnTP... 详细信息

昂贵的辅因子烟酰胺腺嘌呤二核苷酸(NAD^(+))是限制酶催化商业化应用的主要障碍,因此高效再生NAD^(+)具有重要意义.本文利用液液界面沉积法制备了一种富勒烯-锌卟啉光催化剂(C_(60)-ZnTPP),通过光生空穴氧化NADH再生NAD^(+).C_(60)-ZnTPP给受体结构具有强大的内建电场(是ZnTPP的5.67倍),最大限度地减少了电荷复合,保证了超快(~1 ps)电荷分离与长寿命的电荷传输(>3 ns),有利于提高光催化NAD^(+)再生性能.本体系以NADH作为唯一的空穴牺牲剂,在可见光照射5小时内达到98.6%的转化率,随后利用在人体解酒中起重要作用的乙醇脱氢酶催化乙醇氧化验证NAD^(+)的酶活性,获得了化学当量的醛.本工作扩展了光催化再生NAD^(+)材料的选择,为完善辅因子的高效再生途径提供了重要指导.

关键词：富勒烯烟酰胺腺嘌呤二核苷酸乙醇氧化内建电场光生空穴锌卟啉电荷分离可见光照射

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

Eco-Friendly Encapsulation of Metal Clusters in Porous Organic Cages for Engineerable Microenvironment and Enhanced Catalysis

引用

CCS chemistry 2024年第9期6卷 2186-2197页

作者： Siyu Ren Liangxiao Tan Jun-Hao Zhou Jian Sun Peng Zhang Xingzhong Cao Yun-Hong Zhang Jian-Ke Sun MOE key laboratory of Cluster Science Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 102488 institute of High Energy physics Chinese Academy of SciencesBeijing 100049

Developing artificial catalysts that mimic the functionality of enzymes and adapt to the surrounding microenvironment to achieve specific activity and selectivity is a fascinating research area yet remains a great *** this work,we present a meticulously designed strategy for the successful encapsulation of ultrasmall metal clusters(MCs)within an amine-type porous organic cage(POC)through electrostatic complexation,phase transfer,and alcohol reduction *** amine cage showcases an intriguing and customizable feature that allows for the regulation of the surrounding microenvironment of the confined MCs through a feasible postmodifi-cation *** functionalization of cage skeleton further facilitates precise adjustment to the surface electronic state of Pd cluster,thereby influencing the adsorption behavior of ***,this controlled regulation leads to modified activity and chemoselectivity in the catalytic hydrogenation of halogenated ***,the investigation of the correlation between the surrounding microenvironment,substrate adsorption,and catalytic performance in the POC-immobilized MCs system has not been previously *** anticipate that our research will provide valuable insights in this field.

关键词： metal cluster porous organic cage encapsulation microenvironment catalysis

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

Permeability and selectivity synergistically enhanced nanofluidic membrane for osmotic energy harvesting

引用

Carbon Energy 2024年第8期6卷 14-24页

作者： Jundong Zhong Tingting Xu Hongyan Qi Weibo Sun Shuang Zhao Zhe Zhao Yirong Sun Youliang Zhu Jianxin Mu Haibo Zhang Xuanbo Zhu Zhenhua Jiang Lei Jiang National and Local Joint Engineering laboratory for Synthetic Technology of High‐Performance Polymer Jilin UniversityChangchunJilinChina State key laboratory of Supramolecular Structure and materials Jilin UniversityChangchunJilinChina key laboratory for Molecular Enzymology and Engineering of Ministry of Education Jilin UniversityChangchunJilinChina CAS key laboratory of Bio‐inspired materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijingChina

For the porous‐membrane‐based osmotic energy generator,the potential synergistic enhancement mechanism of various key parameters is still controversial,especially because optimizing the trade‐off between permeability and selectivity is still a ***,to construct a permeability and selectivity synergistically enhanced osmotic energy generator,the twodimensional porous membranes with tunable charge density are prepared by inserting sulfonated polyether sulfone into graphene *** of charge density and pore size on the ion transport are explored,and the ionic behaviors in the channel are calculated by numerical *** mechanism of ion transport in the process is studied in depth,and the fundamental principles of energy conversion are *** results demonstrate that charge density and pore size should be matched to construct the optimal ion *** collaborative enhancement strategy of permeability and selectivity has significantly improved the output power in osmotic energy generation;compared to the pure graphene oxide membrane,the composite membrane presents almost 20 times improvement.

关键词： blue energy generator charge tunable graphene oxide ion transport layered 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

In situ photoelectric biosensing based on ultranarrowband near-infrared plasmonic hot electron photodetection

引用

Advanced Photonics 2024年第2期6卷 81-89页

作者： Xianghong Nan Wenduo Lai Jie Peng Haiquan Wang Bojun Chen Huifan He Zekang Mo Zikun Xia Ning Tan Zhong Liu Long Wen Dan Gao Qin Chen Jinan University College of Physics & Optoelectronic Engineering Institute of Nanophotonics Guangdong Provincial Key Laboratory of Nanophotonic Manipulation Tsinghua University Shenzhen International Graduate School State Key Laboratory of Chemical Oncogenomics Jinan University College of Life Science and Technology

Narrowband photodetection is an important measurement technique for material analysis and sensing, for example, nondispersive infrared sensing technique. Both photoactive material engineering and nanophotonic filtering schemes have been explored to realize wavelength-selective photodetection,while most devices have a responsive bandwidth larger than 2% of the operating wavelength, limiting sensing performance. Near-infrared photodetection with a bandwidth of less than 0.2% of the operating wavelength was demonstrated experimentally in Au/Si Schottky nanojunctions. A minimum linewidth of photoelectric response down to 2.6 nm was obtained at a wavelength of 1550 nm by carefully tailing the absorptive and radiative loss in the nanostructures. Multiple functions were achieved on chip with the corrugated Au film, including narrowband resonance, light harvesting for sensing and photodetection, and electrodes for hot electron emission. Benefiting from such a unity integration with in situ photoelectric conversion of the optical sensing signal and the ultranarrowband resonance, self-contained on-chip biosensing via simple intensity interrogation was demonstrated with a limit of detection down to 0.0047%in concentration for glucose solution and 150 ng∕m L for rabbit IgG. Promising potential of this technique is expected for the applications in on-site sensing, spectroscopy, spectral imaging, etc.

关键词： Photodetectors Plasmonics Biosensing Optical gratings Gold Absorption spectrum Acoustooptic tunable filters Absorption Sensors In situ remote sensing

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

三磷酸腺苷刺激响应型碳点纳米反应器用于T1-增强的磁共振成像介导的化学动力学治疗（英文）

引用

Science China materials 2024年第11期67卷 3742-3752页

作者：南福春薛小矿李建梁珂王健于伟泳葛介超汪鹏飞 School of chemistry and Chemical Engineering Ministry of Education Key Laboratory of Special Functional Aggregated MaterialsShandong Key Laboratory of Advanced Organosilicon Materials and TechnologiesShandong University Shandong Provincial key laboratory for Science of Material Creation and Energy conversion Science Center for Material Creation and Energy ConversionShandong University key laboratory of photochemical conversion and optoelectronic materials and CityU-CAS Joint laboratory of Functional materials and Devices Technical Institute of Physics and ChemistryChinese Academy of Sciences School of Future Technology University of Chinese Academy of Sciences

设计合成具有肿瘤微环境（如酸、H2O2、谷胱甘肽等）刺激响应型纳米反应器来提高化学动力学治疗（CDT）效果引起了研究者们的广泛关注.目前,探索具有三磷酸腺苷（ATP）刺激响应型纳米反应器用于肿瘤CDT具有重要意义.在此,我们首先制备... 详细信息

设计合成具有肿瘤微环境（如酸、H2O2、谷胱甘肽等）刺激响应型纳米反应器来提高化学动力学治疗（CDT）效果引起了研究者们的广泛关注.目前,探索具有三磷酸腺苷（ATP）刺激响应型纳米反应器用于肿瘤CDT具有重要意义.在此,我们首先制备了具有ATP刺激响应型的铁掺杂碳点（FeCDs）.随后利用脂质体将FeCDs与葡萄糖氧化酶（GOx）共组装,得到ATP刺激响应型的纳米反应器.在肿瘤组织中,该纳米反应器首先释放FeCDs与GOx.在ATP刺激下,铁离子能够快速从FeCDs上释放下来引发Fenton/Fenton-like反应产生·OH,实现CDT.于此同时释放的铁离子能够提高材料T1增强的磁共振成像.并且GOx能够在肿瘤中将葡萄糖转化为H2O2,进而增加·OH的产量,提高CDT治疗效果.本研究提供了一种新型ATP刺激响应型且具有自补充H2O2功能的纳米反应器用于肿瘤诊断与治疗.

关键词： carbon dots adenosine triphosphate self-supplied H2O2 glucose oxidase chemodynamic therapy

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

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：