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The new era for organic solar cells:non-fullerene small molecular acceptors

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Science Bulletin 2020年第15期65卷 1231-1233页

Organic solar cells(OSCs)is a promising renewable energy technology as their prospect in producing large-area photovoltaic modules via low-cost roll-to-roll processing and their widespread application including photovoltaic farms,building integration,and portable electronics,etc.[1].The key component of an OSC is its photoactive layer,which is a bulk-heterojunction blend of an electron donor and an electron acceptor[2].The electron donors are p-type semi-conducting conjugated polymers or small molecules,and the electron acceptors were predominated by fullerene derivatives in OSC history.

关键词：有机太阳电池 donor conducting

The new era for organic solar cells: polymer donors

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Science Bulletin 2020年第17期65卷 1422-1424页

Organic solar cells(OSCs)based on bulk heterojunction,consisting of a polymer donor and a small molecular acceptor(SMA)represent a promising photovoltaic technology due to their prospect in producing large-area modules via low-cost roll-to-roll processing[1].This field has experienced three stages according to the type of electron *** to 2015,the electron acceptors were predominated by fullerene derivatives.

关键词：有机太阳电池 donor heterojunction

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果寡糖对哺乳羔羊瘤胃发酵参数的影响

饲料工业 2024年第12期45卷 77-81页

作者：李炯唐亚楠魏赜段春辉刘月琴张英杰郭云霞纪守坤严慧河北农业大学动物科技学院河北保定071000

文章旨在研究果寡糖对哺乳羔羊瘤胃发酵参数的影响。试验选择15日龄体重相近的湖羊羔羊44只,随机均分为4组:对照组开食料中不添加果寡糖,试验组Ⅰ、Ⅱ和Ⅲ开食料中分别添加0.5%、1%和1.5%果寡糖。所有羔羊60日龄断奶,记为第0天。在试验... 详细信息

文章旨在研究果寡糖对哺乳羔羊瘤胃发酵参数的影响。试验选择15日龄体重相近的湖羊羔羊44只,随机均分为4组:对照组开食料中不添加果寡糖,试验组Ⅰ、Ⅱ和Ⅲ开食料中分别添加0.5%、1%和1.5%果寡糖。所有羔羊60日龄断奶,记为第0天。在试验第0、3、7、14天于晨饲前采集瘤胃液,测定瘤胃发酵参数。断奶后继续饲喂至74日龄,正试期共59 d。结果表明:(1)处理、时间显著影响了羔羊瘤胃pH和氨态氮浓度(NH_(3)-N)(P0.05)。(2)处理显著影响了羔羊瘤胃总挥发性脂肪酸(TVFA)、乙酸、丙酸、丁酸和乙/丙(P0.05);随着断奶时间的延长,TVFA、乙酸、丙酸、丁酸整体呈先降低后升高趋势;处理×时间对TVFA、乙酸、丙酸、丁酸和乙/丙无影响(P>0.05)。综上所述,在开食料中添加果寡糖可通过改善哺乳羔羊瘤胃发酵功能,改善瘤胃环境。本试验条件下,果寡糖的最适添加量为1%。

关键词：羔羊果寡糖断奶瘤胃发酵参数

All-polymer solar cells

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Journal of Semiconductors 2021年第8期42卷 12-18页

作者： Baoqi Wu Bingyan Yin chunhui duan Liming Ding State Key Laboratory of Luminescent Materials and Devices South China University of TechnologyGuangzhou 510640China Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China

Organic solar cells(OSCs)show a promising commercialization prospect with their power conversion efficiencies(PCEs)exceeding 18%[1−6].Among various types of OSCs,all-polymer solar cells(all-PSCs)with a physical blend of p-and n-type polymer as the active layer to harvest solar irradiation attract growing attention due to their unique advantages like excellent morphological stability,and mechanical durability[7].

关键词： durability exceeding harvest

Low-bandgap conjugated polymers based on benzodipyrrolidone with reliable unipolar electron mobility exceeding 1 cm^(2) V^(-1)s^(-1)

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Science China Chemistry 2021年第7期64卷 1219-1227页

作者： Mingqun Yang Tian Du Xuxia Zhao Xuelong Huang Langheng Pan Shuting Pang Haoran Tang Zhongxiang Peng Long Ye Yunfeng Deng Mingliang Sun chunhui duan Fei Huang Yong Cao School of Materials Science and Engineering Ocean University of ChinaQingdao 266100China Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou 510640China School of Materials Science and Engineering Tianjin UniversityTianjin 300350China College of Pharmacy Gannan Medical UniversityGanzhou 341000China State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116024China

The employment of an intrinsic quinoidal building block,benzodipyrrolidone(BDP),on constructing conjugated polymers(PBDP-2F and PBDP-2CN)with high electron mobility and unipolar transport characteristic in polyethylenimine ethoxylated(PEIE)modified organic field-effect transistors(OFETs)is *** intrinsic quinoidal characteristic and excellent coplanarity of BDP can lower the lowest unoccupied molecular orbital(LUMO)levels and improve ordered interchain packing of the resulting polymers in solid states,which are favorable for electron-injection and *** using PEIE as the interlayer to block the hole injection,unipolar n-type transport characteristics with high electron mobility of 0.58 and 1.01 cm^(2) V^(-1)s^(-1)were achieved by the OFETs based on PBDP-2F and PBDP-2CN,*** importantly,the extracted mobilities are highly reliable with the reliability factor of above 80%.To the best of our knowledge,PBDP-2CN is the very first quinoid-based conjugated polymer with reliable electron mobility exceeding 1 cm^(2) V^(-1)s^(-1).This work represents a significant step in exploring intrinsic quinoidal CPs for application in n-channel OFETs and logic complementary circuits.

关键词： field-effect transistors electron mobility conjugated polymers quinoidal structure benzodipyrrolidone

Indoor organic photovoltaics

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Science Bulletin 2020年第24期65卷 2040-2042,M0004页

作者： Yue Zhang chunhui duan Liming Ding Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou 510640China Center for Excellence in Nanoscience(CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS)National Center for Nanoscience and TechnologyBeijing 100190China

Indoor photovoltaics have attracted increasing attention as power sources for low power consumption wireless electronics and the rapidly-growing Internet of Things(Io T). Highly tunable optical absorption, large absorption coefficients, and low leakage currents make organic photovoltaics(OPVs) promising for indoor application [1]. Recently, a few OPVs have realized over 20% power conversion efficiencies(PCEs) under indoor light illumination.

关键词： illumination power Highly

Investigation of the feasibility of NRAV as a biomarker for hepatocellular carcinoma

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Oncology Research 2024年第4期32卷 717-726页

作者： JUN LIU WENLI LI RUYUE LU JIAQING XU chunhui JIANG JUNLIN duan LINGZHI ZHANG GUANFU WANG JIAXI CHEN Department of Clinical Laboratory Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical UniversityLinhaiChina Key Laboratory of System Medicine and Precision Diagnosis and Treatment of Taizhou TaizhouChina Department of Clinical Laboratory Dongguan Hospital of Traditional Chinese MedicineDongguanChina School of Basic Medical Sciences Forensic Medicine Hangzhou Medical CollegeHangzhouChina

The long non-coding RNA,Negative Regulator of Antiviral Response(NRAV)has been identified as a participant in both respiratory virus replication and immune checkpoints,however,its involvement in pan-cancer immune regulation and prognosis,particularly those of hepatocellular carcinoma(HCC),remains *** address this knowledge gap,we analyzed expression profiles obtained from The Cancer Genome Atlas(TCGA)database,comparing normal and malignant tumor *** found that NRAV expression is significantly upregulated in tumor tissues compared to adjacent nontumor ***-Meier(K-M)analysis revealed the prognostic power of NRAV,wherein overexpression was significantly linked to reduced overall survival in a diverse range of tumor ***,noteworthy associations were observed between NRAV,immune checkpoints,immune cell infiltration,genes related to autophagy,epithelial-mesenchymal transition(EMT),pyroptosis,tumor mutational burden(TMB),and microsatellite instability(MSI)across different cancer types,including ***,NRAV upregulation expression was associated with multiple pathological stages by clinical ***,our investigation revealed a substantial elevation in the expression of NRAV in both HCC tumor tissues and cells compared to normal tissues and *** inhibition of NRAV resulted in the inhibition of cell proliferation,migration,and invasion in HCC cells,while also influencing the expression of CD274(PD-L1)and CD44,along with various biomarkers associated with EMT,autophagy,and *** aforementioned results propose NRAV as a promising prognostic biomarker for HCC.

关键词： NRAV Hepatocellular carcinoma Prognosis Biomarker Pan-cancer

Synthesis and optoelectronic properties of amino-functionalized carbazole-based conjugated polymers

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Science China Chemistry 2013年第4期56卷 1119-1128页

作者： LIU ShengJian ZHANG ZhiPeng CHEN DongCheng duan chunhui LU JunMing ZHANG Jie HUANG Fei SU ShiJian CHEN JunWu CAO Yong State Key Laboratory of Luminescent Materials and Devices Institute of Polymer Optoelectronic Materials & Devices South China University of Technology

A series of alcohol soluble amino-functionalized carbazole-based copolymers were synthesized via Suzuki coupling reaction. The pendent amino groups endow them high solubility in polar solvents, as well as efficient electron injection capability from high work-function metals. The relationships between the photophysical and electrochemical properties and the polymer backbone structure were systematically investigated. These alcohol-soluble carbazole-based copolymers were used as cathode interlayers between the high work-function metal A1 cathode and P-PPV emissive layer in polymer light-emitting diodes with device structure of ITO/PEDOT：PSS/P-PPV/interlayer/A1. The resulting devices exhibited improved performance due to the better electron injection/transporting ability of the designed copolymers from A1 cathode to the light-emitting layer.

关键词： polymer light-emitting diodes amino-functionalized conjugated polymers electron injection/transporting material in-terfacial material carbazole

A comparative study of the pathogenicity of two different Eimeria tenella isolates in China

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A comparative study of the pathogenicity of two different Ei...