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Design of Non-fused Ring Acceptors toward High-Performance,Stable,and Low-Cost Organic Photovoltaics

Accounts of Materials Research 2022年第6期3卷 644-657页

作者： Qing Shen Chengliang He Shuixing Li Lijian Zuo minmin shi Hongzheng Chen State Key Laboratory of Silicon Materials MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationInternational Research Center for X PolymersDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou 310027P.R.China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering Hangzhou 310027P.R.China

Toward future commercial applications of organic solar cells(OSCs),organic photovoltaic materials that enable high efficiency,excellent stability,and low cost should be developed.Fused-ring electron acceptors(FREAs)have declared that OSCs are capable of showing efficiencies over 19%,whereas stability and cost are not solved yet.As the counterparts of FREAs,non-fused ring electron acceptors(NFREAs)are more flexible in molecular design.They have better stability because of the reduction of intramolecular tension via breaking fused backbone and have more advantages in cost with the reduction of synthetic complexity.However,the challenge for NFREAs is the relatively lower efficiencies(around 15%at current stage),which require better molecular designs for addressing the issues of conformational unicity and effective molecular packing.In this Account,we comprehensively summarize works about NFREAs carried out in our group from three main frameworks,including molecular design and efficiency optimization,material cost,and stability.First,in the part of molecular design and efficiency optimization,the existing rotatable single bond in NFREAs will bring the problem of conformational uncertainty,but it can be solved through proper molecular design,which also regulates the energy levels,light absorption range,and the packing mode of the molecule for obtaining higher performance.Thus,in this part,we discuss the evolution of NFREAs in three aspects,including molecular skeleton optimization,terminal modification,and side chain engineering.Many strategies are used in the design of a molecular skeleton,such as utilizing the quinoid effect,introducing functional groups with the electron push−pulling effect,and using multiple conformational lock.Furthermore,simplifying the skeleton is also the preferred development tendency.As for the terminal,the main modification strategy is adjusting the conjugation length and halogen atoms.What is more,by adjusting the side chain to induce appropriate steric hindrance,we can fix the orientation

关键词： stability fused stability

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Efficient and 1,8-diiodooctane-free ternary organic solar cells fabricated via nanoscale morphology tuning using small-molecule dye additive

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Nano Research 2017年第11期10卷 3765-3774页

作者： Shuhua Zhang Muhammad Naeem Shah Feng Liu Zhongqiang Zhang Qin Hu Thomas P. Russell minmin shi Chang-Zhi Li Hongzheng Chen MOE Key Laboratory of Macromolecular Synthesis and Functionalization State Key Laboratory of Silicon Materials Department of Polymer Science amp Engineering Zhejiang University Hangzhou 310027 China Department of Physics and Astronomy Shanghai Jiao Tong University Shanghai 200240 China Materials Sciences Division Lawrence Berkeley National Laboratory Berkeley CA 94720 USA

The ternary strategy for incorporating multiple photon-sensitive components into a single junction has emerged as an effective method for optimizing the nanoscale morphology and improving the device performance of organic solar cells （OSCs）.In this study,efficient and stable ternary OSCs were achieved by introducing the small-molecule dye （5E,5＆#39;E）-5,5＆#39;-（4＆#39;,4″-（1,2-diphenylethene-1,2-diyl）bis（biphenyl-4＆#39;,4-diyl））bis（methan-1-yl-1-ylidene）bis（3-ethyl-2-thioxothia zolidin-4-one）（BTPERn） into poly[4,8-bis（5-（2-ethylhexyl）thiophen-2-yl）benzo[1,2-b：4,5-b＆#39;]dithiopheneco-3-fluorothieno[3,4-b]thiophene-2-carboxylate] （PTB7-Th）：[6,6]-phenyl C71 butyric acid methyl ester （PC71BM） blend films processed using a 1,8-diiodooctane （DIO）-free solvent.The incorporation of BTPE-Rn enhanced the short-circuit current density and fill factor of the ternary OSCs compared with those of binary OSCs.An investigation of the optical,electronic,and morphological properties of the ternary blends indicated that the third component of BTPE-Rn not only promoted the photon utilization of blends through the energy-transfer process but also improved the electron mobility of the blends owing to the fullerene-rich nanophase optimization.More importantly,this ternary strategy of utilizing a small-molecule dye to replace the photounstable DIO additive enhanced the operational stability of the OSCs.

关键词： ternary organic solar cell,energy transfer,mobility,1,8-diiodooctane （DIO）-free

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A non-fullerene acceptor enables efficient P3HT-based organic solar cells with small voltage loss and thickness insensitivity

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Chinese Chemical Letters 2019年第6期30卷 1277-1281页

作者： Ning Wang Weitao Yang Shuixing Li minmin shi Tsz-Ki Lau Xinhui Lu Rafi shikler Chang-Zhi Li Hongzheng Chen MOE Key Laboratory of Macromolecular Synthesis and Functionalization State Key Laboratory of Silicon Materials Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 China Department of Physics The Chinese University of Hong Kong Hong Kong 999077 China Department of Electrical and Computer Engineering Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel

Poly(3-hexylthiophene)(P3HT) is a low-cost polymer donor for organic solar cells (OSCs). However, the P3HT-based OSCs usually give low power conversion efficiencies (PCEs) due to the wide bandgap and the high-lying energy levels of P3HT. To solve this problem, in this work, we design and synthesize a new A-D-A type non-fullerene acceptor, DFPCBR, which owns an electron-donating (D) core constructed by linking a 2,5-difluorobenzene ring with two cyclopentadithiophene moieties, and two electron-accepting (A) end-groups of benzo[c][1,2,5]thiadiazole connected with 3-ethyl-2-thioxothiazolidin-4-one. Because of the strong electron-donating ability and large conjugation effect of D core, DFPCBR shows appropriate energy levels and a narrow bandgap matching well with those of P3HT. Therefore, with P3HT as the donor and DFPCBR as the acceptor, the OSCs possess broad absorption range from 350 nm to 780 nm and the reduced energy loss (Eloss) of 0.79 eV (compared with ~1.40 eV for the P3HT:PC61BM device), providing a good PCE of 5.34% with a high open-circuit voltage (VOC) of 0.80 V. Besides, we observe that the photovoltaic performances of these devices are insensitive to the thickness of the active layers:even if the active layer is as thick as 320 nm,~80%of the best PCE is maintained, which is rarely reported for fullerene-free P3HT-based OSCs, suggesting that DFPCBR has the potential application in commercial OSCs in the future.

关键词： Poly(3-hexylthiophene) Non-fullerene acceptors Organic solar cells Energy loss Thickness insensitivity

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基于TMT技术的香芹酚和丁香酚杀螨机制分析

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黑龙江畜牧兽医 2024年第6期 72-79页

作者：封申瑞李美林师敏敏黄思怡方芳广西大学动物科学技术学院南宁530003 陆军军医大学基础医学院重庆400038

为了探究香芹酚和丁香酚的杀螨机制,试验首先设置香芹酚组、丁香酚组和阴性对照组共3组,每组3个重复,香芹酚组、丁香酚组和阴性对照组分别用0.15%丁香酚、0.05%香芹酚和液体石蜡处理疥螨4 h后提取疥螨蛋白质,蛋白质经还原烷基化、酶解... 详细信息

为了探究香芹酚和丁香酚的杀螨机制,试验首先设置香芹酚组、丁香酚组和阴性对照组共3组,每组3个重复,香芹酚组、丁香酚组和阴性对照组分别用0.15%丁香酚、0.05%香芹酚和液体石蜡处理疥螨4 h后提取疥螨蛋白质,蛋白质经还原烷基化、酶解及串联质谱标记(tandem mass tag, TMT)后进行高效液相色谱分离和液相色谱串联质谱分析;然后对香芹酚组/阴性对照组及丁香酚组/阴性对照组的差异表达蛋白进行分析,并对差异表达蛋白进行GO功能富集分析和KEGG信号通路富集分析;最后筛选与香芹酚、丁香酚杀螨相关的差异表达蛋白。结果表明:香芹酚组/阴性对照组共有蛋白4 692个,其中差异表达蛋白235个(上调蛋白113个,下调蛋白122个);丁香酚组/阴性对照组共有蛋白4 824个,其中差异表达蛋白103个(上调蛋白43个,下调蛋白60个)。香芹酚组/阴性对照组差异表达蛋白极显著富集(P<0.01)的GO二级条目包括平滑信号通路、从细胞核输出的蛋白质调节、氧化磷酸化等;显著富集(P<0.05)的GO二级条目包括核质转运的调节、细胞内蛋白质运输的调节、甘油酯生物合成过程等。丁香酚组/阴性对照组差异表达蛋白极显著富集(P<0.01)的GO二级条目包括tRNA修饰、ncRNA处理;显著富集(P<0.05)的GO二级条目包括细胞酰胺代谢过程、正向调节蛋白定位到细胞核、含蝶啶化合物分解代谢过程等。香芹酚组/阴性对照组差异表达蛋白显著富集(P<0.05)的KEGG信号通路包括α-亚麻酸代谢、卟啉与叶绿素代谢、癌症蛋白聚糖等。丁香酚组/阴性对照组差异表达蛋白显著富集(P<0.05)的KEGG信号通路包括核糖体、军团杆菌病。与香芹酚杀螨机制相关的GO二级条目为氧化磷酸化,磷脂酰甘油磷酸合成酶和细胞色素C氧化酶亚基1注释到这一过程中;与阴性对照组比较,香芹酚组的磷脂酰甘油磷酸合成酶显著上调(P<0.05),细胞色素C氧化酶亚基1显著下调(P<0.05)。与丁香酚杀螨机制相关的KEGG信号通路为核糖体,核糖体L23蛋白60S亚基、核糖体L32蛋白39S亚基、核糖体L3蛋白39S亚基、核糖体S16蛋白28S亚基、核糖体L1蛋白39S亚基注释到这一KEGG信号通路中;与阴性对照组比较,丁香酚组的上述蛋白均显著下调(P<0.05)。说明香芹酚杀螨机制与氧化磷酸化这一过程相关,丁香酚杀螨机制与核糖体蛋白表达相关。

关键词：疥螨香芹酚丁香酚蛋白质组学串联质谱标记(TMT)

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奥古斯丁论人的造成

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宗教学研究 2023年第1期 176-180页

作者：石敏敏浙江工商大学

奥古斯丁的“人的受造”学说是其人论的重要组成部分。本文分如下三方面进行阐释:(1)人的造成与天使及其他万有的区别。(2)受造之人的理智性、血气性及位格性,人的位格本所包含的不朽性。(3)男女的平等性和分工关系。奥古斯丁由人作为... 详细信息

奥古斯丁的“人的受造”学说是其人论的重要组成部分。本文分如下三方面进行阐释:(1)人的造成与天使及其他万有的区别。(2)受造之人的理智性、血气性及位格性,人的位格本所包含的不朽性。(3)男女的平等性和分工关系。奥古斯丁由人作为“上帝形像”的观念,论证了男性和女性是始于“原因性的人”的关系性实体。

关键词：人的造成上帝的形像原因性的人奥古斯丁

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Crystal Growth and Characterization of Fluorinated Perylene Diimides

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Chemical Research in Chinese Universities 2014年第1期30卷 63-67页

作者： HUANG Jiachi LI Hanying MO Xiong shi minmin WANG Mang CHEN Hongzheng State Key Laboratory of Silicon Materials Key Laboratory of Macromolecular Synthesis and Functionalization Ministry of Education Department of Polymer Science and Engineering Zhejiang University Hangzhou 310027 P. R. China

One-dimensional crystals of fluorinated perylene diimides were achieved by the self-assembly of them via solvent-nonsolvent exchanging.The π-conjugated fluorinated perylene diimides were assembled into highly-ordered nanostructures of well-defined morphologies in organic solvents due to the π-π interaction between the aromatic cores.It was found that with more introduced F atoms,perylene diimides showed remarkably improved solubility and thus were much easier to grow into crystals,due to the increased polarity induced by the strong electron-withdrawing F group.More importantly,single crystal of N,N＇-diperfluorophenyl-3,4,9,10-perylenetetracarboxylic diimide（DPFPP）was obtained,and the unit cell-dimensions of triclinic structure were determined by the selected area electron diffraction（SAED） pattems to be a=0.712 nm,b=1.072 nm,c=2.914 nm,a=97.0°,β=89.6°,γ=93.4°.Owing to most of the longest c-axis orienting nearly vertically to the long axis of the needle crystal,the molecular planes are expected to be vertical to the needle axis.

关键词： Perylene diimide Fluorination Crystal growth

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A diketopyrrolopyrrole molecule end-capped with furan-2-carboxylate moiety: planarity of molecular geometry and photovoltaic property

A diketopyrrolopyrrole molecule end-capped with furan-2-carb...

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中国化学会第29届学术年会

作者： Fei Zhang Weifei Fu Pei Cheng ZhixinXie CongCheng Fan minmin shi Lei Fu JianhuiHou Xiaowei Zhan Hongzheng Chen MOE Key Laboratory of Macromolecular Synthesis and Functionalization State Key Lab of Silicon Materials & Department of Polymer Science and Engineering Zhejiang University Institute of Chemistry Chinese Academy of Sciences Department of Materials Science and Engineering College of Engineering Peking University

Adiketopyrrolopyrrole（DPP） molecule with fully-planar molecular geometry, 3,6-bis{5-[（ethylfuran-2-carboxylate）-2-yl]thiophene-2-yl}-2,5-bis（2-ethylhexyl）pyrrolo[3,4-c]pyrrole-1,4-dione（DPP（CF）2） was designed and synthesized, for solution-processable organic solar cells（OSCs）. It is theoretically calculated that the dihedral angels between the two furan-2-carboxylate end-groups and DPP core are both only 0.56o. Due to this negligible steric distortion, the molecular conformation of DPP（CF）2 can be considered fully coplanar, leading to a higher crystallinity for DPP（CF）2 film. As a result, the hole mobility of DPP（CF）2 is one order of magnitude higher than that of the DPP derivative with thiophene-2-carboxylate as the end-group（DPP（CT）2）[1]. OSCs based on the blends of DPP（CF）2 or DPP（CT）2 and PC71BM were fabricated. It is found that the DPP（CF）2-based devices exhibit much better photovoltaic performance than the DPP（CT）2-based devices, with the highest power conversion efficiency of 5.37% and a short-circuit current density of 11.4 mA cm-2. This phenomenon can be ascribed to the superior charge-transporting ability of DPP（CF）2 caused by its fully-planar molecular geometry[2].

关键词： fully-planar molecule furan-2-carboxylate small molecular solar cells

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慢性疼痛患者生命意义感的研究进展

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军事护理 2023年第5期40卷 89-92页

作者：施敏敏成燕童莺歌浙江中医药大学护理学院浙江杭州310000 浙江省人民医院疼痛科浙江杭州310000 杭州师范大学护理学院浙江杭州310000

国际疼痛协会(International Association for the Study of Pain,IASP)定义慢性疼痛为超过正常组织愈合时间至少3个月的疼痛[1]。据统计,19%的欧洲人口和12%~25%的美国人口患有慢性疼痛,我国慢性疼痛的患病率则达到35.9%[2]。研究[2-3... 详细信息

国际疼痛协会(International Association for the Study of Pain,IASP)定义慢性疼痛为超过正常组织愈合时间至少3个月的疼痛[1]。据统计,19%的欧洲人口和12%~25%的美国人口患有慢性疼痛,我国慢性疼痛的患病率则达到35.9%[2]。研究[2-3]显示,慢性疼痛严重影响患者的身心健康和生活质量,引起抑郁、自杀、失业、孤立等一系列个人、家庭与社会问题。

关键词：慢性疼痛组织愈合家庭与社会生命意义感患病率

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“我有幸得到了一个好灵魂”:论奥古斯丁对《所罗门智训》8:19-20的诠释

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圣经文学研究 2022年第2期 113-133页

作者：石敏敏浙江工商大学马克思主义学院

奥古斯丁主要使用神学释经法,使释经服务于神学论辩。本文从三方面阐释奥古斯丁对《所罗门智训》8:19-20的理解:首先,《所罗门智训》的“好灵魂”专指基督或基督的灵魂;其次,根据《所罗门智训》第8章的“好灵魂”与《希伯来书》7:10,论... 详细信息

奥古斯丁主要使用神学释经法,使释经服务于神学论辩。本文从三方面阐释奥古斯丁对《所罗门智训》8:19-20的理解:首先,《所罗门智训》的“好灵魂”专指基督或基督的灵魂;其次,根据《所罗门智训》第8章的“好灵魂”与《希伯来书》7:10,论证“好灵魂”与基督身体相匹配;第三,依据《所罗门智训》的“好灵魂”与《罗马书》7:23“心里的律”,阐释“不可见的情欲”(即无法避免的情欲)的内涵。本文最后归纳了奥古斯丁神学释经的三个特征:以神学主导经文内容,以神学确定何种语义为首要,以神学正确为目的。

关键词：奥古斯丁好灵魂基督《所罗门智训》8-20

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POLYMER-INORGANIC HYBRID SOLAR CELLS:MATERIALS SYNTHESIS AND INTERFACE ENGINEERING

POLYMER-INORGANIC HYBRID SOLAR CELLS:MATERIALS SYNTHESIS AND...

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第五届国际高分子化学学术讨论会

作者： Weifei Fu Ye shi Ling Wang Weiming Qiu Yaxiong Nan Hanying Li minmin shi Hongzheng Chen Department of Polymer Science&Engineering Zhejiang University Hangzhou 310027 China.

＜正＞Organic solar cells,especially polymer solar cells have attracted enormous interests both in scientific community and industry as one potential alternative type for inorganic solar cells in developing the low-

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