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Journal of Ocean University of China 2020年第1期19卷 191-198页

作者： liu kaikai LI Qi LI Qiongzhen Key Laboratory of Mariculture Ministry of EducationOcean University of ChinaQingdao 266003China Laboratory for Marine Fisheries Science and Food Production Processes Pilot National Laboratory for Marine Science and Technology(QingdaoQingdao 266237China Institute of Fisheries Science of Guangxi Province Nanning 530021China

Iwagaki oyster,Crassostrea nippona,widely distributes along the seashore of Eastern Asia,and has been considered to be a potential breeding species due to its delicious taste and high commercial *** order to study its genetic background and population structure,we developed 46 novel polymorphic microsatellite markers using next-generation sequencing technique and characterized them in 30 *** number of alleles ranged from 3 to 22,while the observed and expected heterozygosities varied from 0.133 to 1.000 and 0.455 to 0.949,*** microsatellite markers were selected and grouped into five highly informative multiplex PCRs for *** evaluated and validated these multiplex PCRs in a cultured population including 173 candidate parents and 486 *** actual parentage analysis,80%of the offspring were correctly assigned to their parental pairs using three multiplex ***,the success rate of parentage assignment reached 96%when the other two multiplex PCRs were *** 46 microsatellite loci with high variability and the five multiplex PCRs described here provide a powerful tool for pedigree reconstruction,resource conservation and selective breeding program of ***.

关键词： Crassostrea nippona microsatellites multiplex PCR parentage assignment

Preparation of Perovskite Solar Cells in the Air:Degradation Mechanism and Prospects on Large-Area Fabrication

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Chinese Journal of Chemistry 2023年第5期41卷 599-617页

作者： Shuaishuai Guo kaikai liu Li Rao Xiaotian Hu Yiwang Chen School of Physics and Materials Nanchang University999 Xuefu AvenueNanchangJiangxi 330031China College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry Nanchang University999 Xuefu Avenue NanchangJiangxi330031China Peking University Yangtze Delta Institute of Optoelectronics NantongJiangsu 226010China National Engineering Research Centerfor Carbohydrate Synthesis/Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministryof Education Jiangxi Normal University99 Ziyang VenueNanchangJiangxi 330022China

The preparation of perovskite solar cells(PsCs)in the air environment has attracted the attention of numerous experimenters due to its low preparation cost and the possibility of *** the power conversion efficiency(PCE)of PSCs has increased rapidly and exceeded 25%,which is comparable to commercial polysilicon solar cells,most certified or reported high-efficiency perovskite solar cells are still confined to glove boxes or relatively small active areas in the air environment due to moisture,oxygen,high temperature,and ultraviolet(UV)*** this review.

关键词： Perovskite solar cells Degradation mechanism Fabrication in the air Stability strategy Large-area fabrication Thin films Photooxidation

Progress toward understanding the fullerene-related chemical interactions in perovskite solar cells

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Nano Research 2022年第8期15卷 7139-7153页

作者： kaikai liu Chengbo Tian Yuming Liang Yujie Luo Liqiang Xie Zhanhua Wei Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information DisplaysCollege of Materials Science and EngineeringHuaqiao UniversityXiamen 361021China

Fullerene materials have been widely used to fabricate efficient and stable perovskite solar cells(PSCs)due to their excellent electron transport ability,defect passivation effect,and *** studies have shown that fullerene-related chemical interaction has played a crucial role in determining device ***,the corresponding fullerene-related chemical interactions are yet well ***,a comprehensive review of fullerene materials in regulating carrier transport,passivating the surface and grain boundary defects,and enhancing device stability is ***,the influence of the fullerene-related chemical interactions,including fullerene-perovskite,fullerene-inorganic electron transport layer(IETL),and fullerene-fullerene,on the device performance is well ***,we outline some perspectives for further design and application of fullerene materials to enhance the performance and commercial application of PSCs.

关键词： perovskite solar cells functional fullerenes chemical interactions device performance

Multicolor biomass based carbon nanodots for bacterial imaging

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Chinese Chemical Letters 2022年第2期33卷 798-802页

作者： Wenbo Zhao Yong Wang kaikai liu Rui Zhou Chongxin Shan Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China

Biomass-based carbon nanodots(CNDs) are becoming promising fluorescent materials due to their superior optical properties and excellent biocompatibility. However, most fluorescent CNDs are prepared under high temperatures with artificial chemicals as precursors. In this work, multicolor biomass-based CNDs have been prepared by employing natural biomass as precursors through an ultrasonic-assisted method at room temperature. The multicolor biomass-based CNDs can be prepared within 10 min, and cavitation produced by ultrasound in solution contributes to the polymerization of biomolecules into nanodots. The emission of the CNDs covers from blue to red region, with emission peaks centered at 410 nm, 520 nm and 670 nm, and the corresponding photoluminescence quantum yields of the CNDs are 11%, 12% and28%, respectively. Furthermore, bacterial imaging by using the biomass-based CNDs as fluorescent imaging agent has been demonstrated. This work provides a convenient ultrasonic-assisted way for fabrication multicolor and eco-friendly biomass CNDs, demonstrating their application in bacterial imaging.

关键词： Carbon nanodots Biomass Fluorescence Ultrasonic methods Bacterial imaging

Observation and analysis of morphology abnormalities in development of Oryzias melastigma embryos

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Journal of Oceanology and Limnology 2021年第4期39卷 1485-1499页

作者： Jingjing SONG Haiyi WU kaikai liu Wendan CHI Shanshan GE Zhipeng ZHANG Mingqi WANG Yi YU Daode YU Healthy Mariculture Engineering Research Center of Shandong Province Marine Science Research Institute of Shandong ProvinceQingdao 266104China Tianjin Research Institute for Water Transport Engineering Ministry of TransportTianjin 300456China Ocean University of China Qingdao 266100China

Fish embryos are widely used as models in toxicology,drug development,and human disease research because of their high sensitivity,observability,and operability,providing the basis for an in-depth understanding of the *** studies have indicated that birth defects are *** this study,we used Oryzias melastigma as a model to conduct a study of 185-day embryogenesis and observed self-induced non-pathological abnormal *** experienced pre-puberty stage,adolescence stage,and senescence stage,and individuals produced up to 102 eggs per ***,the fecundity was markedly reduced during the senescent *** the active egg and blastodisc stages,pseudo-fertilization and pseudo-blastocysts were *** cleavage at the 4-to 32-cell stages,we observed blastomeres separation or *** separated blastomeres formed double blastoderms,eventually resulting in conjoined *** the blastula stage,we observed abnormally increased cell volume,narrowed and elongated blastocysts,and abnormally coated *** the organogenesis stage,we observed abnormal numbers of Kupff er’s vesicles and conjoined *** in the location and number of oil droplets were observed in various development *** development was more commonly observed in fertilized eggs produced by broodstock in pre-puberty or senescence stages,which is probably related to the age of fish and the egg *** study can provide the materials for comparative analysis in toxicological and molecular studies of ***,and may provide evidence for other economic fish that produce sticky eggs.

关键词： marine fish model abnormal embryogenesis blastomeres separation Kupffer’s vesicle conjoined twins

Microwave-Assisted Confining Growth and Liquid Exfoliation of sp^(3)-Hybrid Carbon Nitride Nano/Micro-Crystals

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Energy & Environmental Materials 2024年第6期7卷 399-408页

作者： Chenglong Shen Qing Lou kaikai liu Guangsong Zheng Runwei Song Jinhao Zang Xigui Yang Xing Li Lin Dong Chongxin Shan Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and Laboratory of Zhongyuan LightZhengzhou UniversityZhengzhou 450052China

As one promising carbon-based material,sp^(3)-hybrid carbon nitride has been predicted with various novel physicochemical ***,the synthesis of sp^(3)-hybrid carbon nitride is still limited by the nanaoscale,low crystallinity,complex source,and expensive ***,we have presented a facile approach to the sp^(3)-hybrid carbon nitride nano/micro-crystals with microwave-assisted confining growth and liquid ***,the carbon nitride nano/micro-crystals can spontaneously emerge and grow in the microwave-assisted polymerization of citric acid and urea,and the liquid exfoliation can break the bulk disorder polymer to retrieve the highly crystalline carbon nitride nano/*** obtained carbon nitride nano/micro-crystals present superior blue light absorption strength and surprising photoluminescence quantum yields of 57.96% in ethanol and 18.05%in solid *** experimental characterizations and density functional theory calculations reveal that the interface-trapped localized exciton may contribute to the excellent intrinsic light emission capability of carbon nitride nano/micro-crystals and the interparticle staggered stacking will prevent the aggregation-caused-quenching ***,the carbon nitride nano/micro-crystals are demonstrated to be potentially useful as the phosphor medium in light-emitting-diode for interrupting blue light-induced eye *** work paves new light on the synthesis strategy of sp^(3)-hybrid carbon nitride materials and thus may push forward the development of multiple carbon nitride research.

关键词： confining growth density functional theory liquid exfoliation luminescence sp^(3)-hybrid carbon nitride

Stabilizing semi-transparent perovskite solar cells with a polymer composite hole transport layer

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Nano Research 2024年第3期17卷 1500-1507页

作者： Yongbin Jin Huiping Feng Zheng Fang liu Yang kaikai liu Bingru Deng Jingfu Chen Xueling Chen Yawen Zhong Jinxin Yang Chengbo Tian Liqiang Xie Zhanhua Wei Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information DisplaysCollege of Materials Science and EngineeringHuaqiao UniversityXiamen 361021China

Semi-transparent perovskite solar cells(ST-PSCs)have broad applications in building integrated ***,the stability of ST-PSCs needs to be improved,especially in n-i-p ST-PSCs since the doped 2,2',7,7'-tetrakis(N,N-di-p-methoxyphenyl-amine)-9,9'-spirobifluorene(Spiro-OMeTAD)is unstable at elevated temperatures and high *** this work,aπ-conjugated polymer poly[(2,6-(4,8-bis(5-(2-ethylhexyl)thiophene-2-yl)-benzo[1,2-b:4,5-b']dithiophene))-alt-(5,5-(1',3'-di-2-thienyl-5',7'-bis(2-ethylhexyl)benzo[1',2'-c:4',5'-c']dithiophene-4,8-dione)](PBDB-T)is selected to form a polymer composite hole transport layer(HTL)with *** sulfur atom of the thiophene unit and the carbonyl group of the polymer interact with the undercoordinated Pb2+at the perovskite surface,which stabilizes the perovskite/HTL interface and passivates the interfacial *** incorporation of the polymer also increases the glass transition temperature and the moisture resistance of *** a result,we obtain ST-PSCs with a champion efficiency of 13.71%and an average visible light transmittance of 36.04%.Therefore,a high light utilization efficiency of 4.94%can be ***,the encapsulated device can maintain 84%of the initial efficiency after 751 h under continuous one-sun illumination(at 30%relative humidity)at the open circuit and the unencapsulated device can maintain 80%of the initial efficiency after maximum power tracking for more than 1250 h under continuous one-sun illumination.

关键词： semi-transparent solar cells π-conjugated polymer composite hole transport layer building integrated photovoltaics

Anneal-free ultra-low loss silicon nitride integrated photonics

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Light(Science & Applications) 2024年第8期13卷 1565-1577页

作者： Debapam Bose Mark W.Harrington Andrei Isichenko kaikai liu Jiawei Wang Nitesh Chauhan Zachary L.Newman Daniel J.Blumenthal Department of Electrical and Computer Engineering University of California Santa BarbaraSanta BarbaraCA 93106USA Octave Photonics LouisvilleCO 80027USA

Heterogeneous and monolithic integration of the versatile low-loss silicon nitride platform with low-temperature materials such as silicon electronics and photonics,III–V compound semiconductors,lithium niobate,organics,and glasses has been inhibited by the need for high-temperature annealing as well as the need for different process flows for thin and thick *** techniques are needed to maintain the state-of-the-art losses,nonlinear properties,and CMOS-compatible processes while enabling this next generation of 3D silicon nitride *** report a significant advance in silicon nitride integrated photonics,demonstrating the lowest losses to date for an anneal-free process at a maximum temperature 250℃,with the same deuterated silane based fabrication flow,for nitride and oxide,for an order of magnitude range in nitride thickness without requiring stress mitigation or *** report record low anneal-free losses for both nitride core and oxide cladding,enabling 1.77 dBm^(-1) loss and 14.9 million Q for 80 nm nitride core waveguides,more than half an order magnitude lower loss than previously reported sub 300℃ *** 800 nm-thick nitride,we achieve as good as 8.66 dBm^(-1) loss and 4.03 million Q,the highest reported Q for a low temperature processed resonator with equivalent device area,with a median of loss and Q of 13.9 dBm^(-1) and 2.59 million each *** demonstrate laser stabilization with over 4 orders of magnitude frequency noise reduction using a thin nitride reference cavity,and using a thick nitride micro-resonator we demonstrate OPO,over two octave supercontinuum generation,and four-wave mixing and parametric gain with the lowest reported optical parametric oscillation threshold per unit resonator *** results represent a significant step towards a uniform ultra-low loss silicon nitride homogeneous and heterogeneous platform for both thin and thick waveguides capable of linear and nonlinear photonic circuits and

关键词： resonator thick free

Lifetime-Engineered Phosphorescent Carbon Dots-in-Zeolite Composites for Naked-Eye Visible Multiplexing

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CCS Chemistry 2021年第12期3卷 252-264页

作者： Xiaowei Yu kaikai liu Hongyue Zhang Bolun Wang Guoju Yang Jiyang Li Jihong Yu State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin UniversityChangchun 130012 Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450001 International Center of Future Science Jilin UniversityChangchun 130012

Lifetime-coded optical multiplexing has attracted wide attention due to avoiding spectral overlap and background *** present,most of the materials used for lifetime-coded multiplexing involve rare-earth metal ions wit... 详细信息

关键词： optical multiplexing lifetime coding carbon dots zeolite room temperature phosphorescence portrait encryption

Efficient Semi‑Transparent Wide‑Bandgap Perovskite Solar Cells Enabled by Pure‑Chloride 2D‑Perovskite Passivation

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Nano-Micro Letters 2023年第8期15卷 35-48页

作者： liu Yang Yongbin Jin Zheng Fang Jinyan Zhang Ziang Nan Lingfang Zheng Huihu Zhuang Qinghua Zeng kaikai liu Bingru Deng Huiping Feng Yujie Luo Chengbo Tian Changcai Cui Liqiang Xie Xipeng Xu Zhanhua Wei Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing Institute of Luminescent Materials and Information DisplaysCollege of Materials Science and EngineeringHuaqiao UniversityXiamen 361021People’s Republic of China MOE Engineering Research Center for Brittle Materials Machining Institute of Manufacturing EngineeringCollege of Mechanical Engineering and AutomationHuaqiao UniversityXiamen 361021People’s Republic of China Gold Stone(Fujian)Energy Company Limited Quanzhou 362005People’s Republic of China Collaborative Innovation Center of Chemistry for Energy Materials Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamen 361005People’s Republic of China

Wide-bandgap(WBG)perovskite solar cells suffer from severe non-radiative recombination and exhibit relatively large opencircuit voltage(V_(OC))deficits,limiting their photovoltaic ***,we address these issues by in-situ forming a well-defined 2D perovskite(PMA)_(2)PbCl_(4)(phenmethylammonium is referred to as PMA)passivation layer on top of the WBG active *** 2D layer with highly pure dimensionality and halide components is realized by intentionally tailoring the side-chain substituent at the aryl ring of the post-treatment ***-principle calculation and single-crystal X-ray diffraction results reveal that weak intermolecular interactions between bulky PMA cations and relatively low cation-halide hydrogen bonding strength are crucial in forming the well-defined 2D ***(PMA)_(2)PbCl_(4)forms improved type-I energy level alignment with the WBG perovskite,reducing the electron recombination at the perovskite/hole-transport-layer *** this strategy in fabricating semi-transparent WBG perovskite solar cells(indium tin oxide as the back electrode),the V_(OC)deficits can be reduced to 0.49 V,comparable with the reported state-of-the-art WBG perovskite solar cells using metal ***,we obtain hysteresis-free 18.60%-efficient WBG perovskite solar cells with a high V_(OC)of 1.23 V.

关键词： Wide-bandgap perovskite solar cells Transparent back electrodes Defect passivation Bulky cations