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Aggregate 2023年第3期4卷 55-70页

作者： Govardhana Babu Bodedla xunjin zhu Wai-Yeung Wong Department of Applied Biology&Chemical Technology and Research Institute for Smart Energy The Hong Kong Polytechnic UniversityHong KongP.R.China The Hong Kong Polytechnic University Shenzhen Research Institute ShenzhenP.R.China Department of Chemistry Hong Kong Baptist UniversityHong KongP.R.China

One of the major obstacles of porphyrins is the aggregation-caused quenching(ACQ)of photoluminescence due to the strong intermolecularπ–πinteraction of the planar porphyrin core in the solid ***,ACQ leads to the nonradiative deactivation of the photoexcited states which results in short-lived charge-separated states and thus low photoluminescence and singlet quantum *** phenomenon would limit the utilization of porphyrins in near-infrared fluorescent bioimaging,photodynamic therapy,photocatalytic hydrogen evolution,electrochemiluminescence,and chiroptical ***,to address the ACQ property of porphyrins and enhance the performance of the above applications,a limited number of AIEgen-decorated porphyrins have been designed,synthesized,and tested for their *** has been found that the introduction of AIEgens,such as tetraphenylethylene,diphenylacrylonitrile,(3,6-bis-(1-methyl-4-vinylpyridinium)-carbazole diiodide,and iridium motif into the porphyrin core,transformed the porphyrins from ACQ to aggregation-induced emission(AIE)in their solid state due to the reduced strong intermolecularπ–πstacking of ***,such porphyrins containing AIE features are employed as potential candidates in the above-mentioned *** this review,we summarize the AIEgen-decorated porphyrins which have been published to date,and also discuss the benefits of converting porphyrins from ACQ to AIE for enhanced performance within each *** far as we know,there is no review that summarizes the structures and applications of AIEgen-decorated porphyrins to ***,we presume that this review would be helpful to design more efficient AIEgen-decorated porphyrins for a wide range of applications in the future.

关键词： aggregation-caused quenching aggregation-induced emission AIE luminogen FRET and solid state emission porphyrin

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Design of AIEgen-based porphyrin for efficient heterogeneous photocatalytic hydrogen evolution Special Collection:Aggregation-Induced Processes and Functions

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Aggregate 2023年第5期4卷 199-206页

作者： Govardhana Babu Bodedla Muhammad Imran Jianzhang Zhao xunjin zhu Wai-Yeung Wong Department of Applied Biology&Chemical Technology and Research Institute for Smart Energy The Hong Kong Polytechnic UniversityHong KongP.R.China The Hong Kong Polytechnic University Shenzhen Research Institute ShenzhenP.R.China Department of Chemistry Hong Kong Baptist UniversityHong KongP.R.China State Key Laboratory of Fine Chemicals and School of Chemical Engineering Dalian University of TechnologyDalianP.R.China

Tetraphenylethylene(TPE)-conjugated porphyrin TPE-ZnPF is synthesized in high yield and characterized by single-crystal X-ray *** propeller-shaped TPE groups not only enable exceptional aggregation-induced emission(AIE)in the solid state but also abolish the strongπ-πstacking of porphyrin moieties and thus prohibit aggregation-caused quenching(ACQ).TPE-ZnPF aggregates feature longlived photoexcited states,which subsequently suppress non-radiative decay channels and enhance emission ***,its aggregates show more efficient lightharvesting ability due to the Förster resonance energy transfer from the TPE energy donor to the porphyrin core energy acceptor,well-defined nanosphere morphology,and more efficient photoinduced charge separation than the porphyrin Ph-ZnPF,which possesses ACQ and agglomerated *** a result,an excellent photocatalytic hydrogen evolution rate(ηH_(2))of 56.20 mmol g^(‒1)h^(‒1)is recorded for TPE-ZnPF aggregates,which is 94-fold higher than that of the aggregates of Ph-ZnPF(0.60 mmol g^(‒1)h^(‒1))without the TPE groups.

关键词： aggregation-induced emission AIEgen porphyrin π-π-stacking photocatalytic hydrogen evolution

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The 2^(nd)Asian Conference on Porphyrins,Phthalocyanines and Related Materials

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Chinese Chemical Letters 2024年第7期35卷 1-3页

作者： Gaojie zhu Zhen Yang Shijun Li Weihua zhu Rui Cao Junlong Zhang Jianzhang Zhao Jonathan L.Sessler xunjin zhu Jianxin Song Yongshu Xie Jianzhuang Jiang Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry and Molecular EngineeringEast China University of Science&TechnologyShanghai 200237China College of Material Chemistry and Chemical EngineeringKey Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal UniversityHangzhou 311121China School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi'an 710119China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China State Key Laboratory of Fine Chemicals Frontier Science Center for Smart MaterialsSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China Department of Chemistry The University of TexasAustinTexas 78712-1224United States Department of Chemistry and Institute of Advanced Materials Hong Kong Baptist UniversityHong Kong 999077China Key Laboratory of Chemical Biology and Traditional Chinese Medicine(Ministry of Educational of China) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan ProvinceCollege of Chemistry and Chemical EngineeringHunan Normal UniversityChangsha 410081China Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline MaterialsDepartment of Chemistry and Chemical EngineeringSchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing 100083China

In the past decades,porphyrins,phthalocyanines and related materials have attracted significant attention due to their diverse and brilliant structures[1,2],as well as their unique electronic structures and photophysi... 详细信息

关键词： cyanine phthalocyanine Porphyrin

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Structure influence of alkyl chains of thienothiophene-porphyrins on the performance of organic solar cells

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Materials Reports(Energy) 2021年第4期1卷 61-67页

作者： Liuping Xie Zhixin Liu Wei Tang Xiaote He Fengbing Zhai Zihao Yuan Song Chen Xuan Zhou Lei Yan xunjin zhu Xingzhu Wang College of Chemistry School of Physics and OptoelectronicsXiangtan UniversityXiangtan 411105HunanPR China Department of Chemistry and Institute of Advanced Materials Hong Kong Baptist UniversityWaterloo RoadKowloon TongHong KongPR China Academy for Advanced Interdisciplinary Research and Department of Materials Science&Engineering Southern University of Science and TechnologyShenzhenGuangdong 518055PR China

Two new A-D-A porphyrin derivatives,denoted as XLP-I and XLP-II,were prepared through extending theπ-conjugation of thienothiophene-porphyrin center with phenylethynyl bridges and electron-deficient ethylrhodanine terminal units,and varying the structures of alkyl chain(linear vs branched)on peripheral thienothiophene substitutions of porphyrin *** molecules show strong absorption in UV–visible–near-infrared region,good thermal stability,suitable energy levels,and ordered molecular packing in solid *** organic solar cells,PC71BM was used as electron acceptor,and porphyrin small molecules were used as electron *** device based on XLP-I exhibits a power conversion efficiency(PCE)of 8.30%,an open circuit voltage(Voc)of 0.894 eV,and a fill factor(FF)of 62.1%.In contrast,the device based on XLP-II presents an inferior performance with a PCE of 3.14%,a Voc of 0.847 eV,and a FF of 49.3%.The better performance of XLP-I based device is mainly attributed to its optimized film morphology,excellent absorption,and well-balanced charge transport properties.

关键词： Thienothiophene Porphyrin Small molecular donor Linear alkyl chain Branched alkyl chain

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Porphyrin-Based Donor Materials for Highly Efficient Organic Photovoltaics

Porphyrin-Based Donor Materials for Highly Efficient Organic...

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中国化学会第四届卟啉与酞菁学术研讨会

作者： zhu,xunjin Chen,Song Wong,Wai-Kwok Department of Chemistry Hong Kong Baptist University

Porphyrins and their derivatives have been extensive studied as photosensitizers in DSSCs and donor materials in bulk heterojunction organic solar cells(BHJ OSC) because of their excellent thermal stability,efficient light-harvesting ability,and high susceptibility in electron-transfer ***,we first reported the use of acceptor-donor-acceptor(A-D-A) structural porphyrin small molecules as donor materials in organic solar cells that facilitates delocalized π-conjugation and π-stacking in the solid state,and the large planar π-conjugation macrocycles can ensures high carrier mobility and efficient intermolecular charge transfer in the π-stacking direction.[1,2] The structural engineering with either different peripheral substitutions or various aromatic linkers on porphyrin core,can simultaneously facilitate better solubility,stronger intermolecular π-π stacking and higher charge transfer mobility in film,leading to the highest PCE of 9.50% in the conventional ***,our recent work demonstrated that the symmetrical meso-aryl substituted porphyrins can applied as hole transport materials(HTMs) in organic-inorganic hybrid perovskites solar cells(PSCs).For their suitable energy level,efficient exciton dissociation and charge transfer in HTM/perovskite films,the best power conversion efficiency of 17.78%(JSC = 22.68 mA cm,VOC = 1.099 V,FF = 71.3%) has been achieved for the zinc(II) porphyrin *** represents the highest PCE among those ever reported for porphyrin-and phthalocyanine-based HTMs in PSCs.

关键词： Porphyrin solar cells donor materials hole transport materials high efficiency

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Porphyrin-based Molecules for Photovoltaic Applications

Porphyrin-based Molecules for Photovoltaic Applications

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中国化学会第30届学术年会-第二十二分会：有机光伏的机遇和挑战

作者： xunjin zhu Wai-Kwok Wong Wai-Yeung Wong Institute of Molecular Functional Materials and Department of Chemistry Hong Kong Baptist University

With the development of accessible and renewable energy sources, solution-processed bulk heterojunction organic solar cells(BHJ OSCs) have been well developed and recognized as one of the most promising next-generation green technology alternatives to inorganic solar cells because of their solution processability, low cost, light weight, and flexibility. Specifically, small-molecule BHJ OSCs have attracted much attention recently, in which small molecules as donor materials show defined molecular structure and molecular weight, high purity, and less batch-to-batch variations in comparison with their polymer counterparts. In dye-sensitized solar cells, porphyrin-based push–pull photosensitizers have demonstrated their success for their large and rigid planar conjugated structures, which can enhance π-electron delocalization and promote intermolecular π–π interaction, as well as charge transport in devices. However, either polymers or small molecules that are porphyrin based show less contribution in BHJ OSCs, and the main impediments to performance are unfavorable aggregation, short exciton diffusion length and low charge mobility. In this talk, a series of new A-D-A porphyrin-based molecules were designed, synthesized and characterized. These molecules can be used as efficient electron donors in high-performance solution-processed BHJ OSCs.

关键词： Prophyrin Photoboltaic Applications Solution-processed Bulk heterojunction

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New Isomeric porphyrin molecules conjugated with naphthalimide derivatives for photocatalytic H2 evolution

New Isomeric porphyrin molecules conjugated with naphthalimi...

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2019第四届中国能源材料化学研讨会

作者： xunjin zhu Govardhana Babu Bodedla Lingling Li Department of Chemistry Hong Kong Baptist University

We have designed and synthesized a new array of push-pull isomeric naphthalimide-porphyrins Zn T(o-NI)PP,Zn T(m-NI)PP,Zn T(P-NI)PP by integration of four naphthalimide moieties on meso-substituion of porphyrin macrocycle through para/meta/ortho phenyl *** these isomers were employed as photosensitizers for the photocatalytic hydrogen production,they delivered high hydrogen production rate(ηH) compared to that of Zn *** the isomers,Zn T(P-NI)PP exhibited 139 times higher ηH2 than the Zn *** could be ascribed to the efficient exciton dissociation into holes and electrons at the photoexcited state of Zn T(P-NI)PP and then electrons were transferred to the proton through *** results indicate that introduction of naphthalimide at meso-position of porphyrin through para phenyl linker is a versatile strategy to improve the PHE of porphyrin based materials.

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Synthesis,properties and photovoltaic devices of novel metalloporphyrin photosensitizer molecules

Synthesis,properties and photovoltaic devices of novel metal...

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中国化学会第五届卟啉与酞菁学术研讨会

作者： Zhixin Liu Wei Tang Liuping Xie Shuaihu Liu Lei Yan xunjin zhu Xingzhu Wang College of Chemistry and Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education and The Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province Xiangtan University Department of Chemistry and Institute of Advanced Materials Hong Kong Baptist University

＜正＞Metal-containing conjugated oligomers represent an intriguing and promising class of materials,and porphyrin moieties have been a popular candidate for inclusion into such a *** of the most important potential applications of these materials is the solar ***,Broad applications of organic solar cells are currently limited by the lower power conversion efficiency（PCE）

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新型金属卟啉的合成及其对大肠杆菌生长代谢的抑制作用

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化学学报 2002年第5期60卷 917-925页

作者：李早英张悦宁谢征朱训进高震霆刘义武汉大学化学与分子科学学院武汉430072

以 5 ,10 ,15 ,2 0 四 (对羟基苯基 )卟啉 (2 )为原料 ,合成并表征了一系列水溶性和非水溶性的金属卟啉 .使用LKB 2 2 77热活性监测器测定了大肠杆菌在金属卟啉 4a～ 4f和 7a～ 7f作用下的生热曲线 ,得到了不同金属卟啉在不同浓度下大... 详细信息

以 5 ,10 ,15 ,2 0 四 (对羟基苯基 )卟啉 (2 )为原料 ,合成并表征了一系列水溶性和非水溶性的金属卟啉 .使用LKB 2 2 77热活性监测器测定了大肠杆菌在金属卟啉 4a～ 4f和 7a～ 7f作用下的生热曲线 ,得到了不同金属卟啉在不同浓度下大肠杆菌生长代谢的生热速率常数k ,最大发热功率pmax和最大发热功率的出现时间t.结果发现 ,含有吡啶溴化盐的水溶性金属卟啉 7a～ 7f对大肠杆菌生长代谢的抑制活性要明显大于含有酯基的金属卟啉 4a～ 4f.

关键词：生长代谢抑制作用金属卟啉合成表征大肠杆菌结构抗肿瘤活性肿瘤光动力疗法

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Synthesis of New Monoporphyrinate Lanthanide Complexes for Potential Use in Optical Limiting

Synthesis of New Monoporphyrinate Lanthanide Complexes for P...

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中国化学会全国第十三届大环化学暨第五届超分子化学学术讨论会

作者： Shitao Fu Guijiang Zhou xunjin zhu Cheng Ye Wai-Kwok Wong and Zaoying Li ( College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072 Department of Chemistry and Centre for Advanced Luminescence Materials, Hong Kong Baptist University, Kowloon Tong, Hong Kong, Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080)

Three monoporphyrinate lanthanide complexes based on 5,10,15,20-tetrakis (p-diphenylaminophenyl)-21H,23H-porphine (H2TDPAPP) were synthesized, and experimental investigations of the nonlinear optical transmittance characteristics at 532 nm show that they are excellent optical limiters with performance comparable or superior to those of the reverse saturable absorption dyes such as fullerene C60 and metal phthalocyanine complexes.

关键词： monoporphyrinate lanthanide complexes synthesis optical limiters

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