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| 1 | Ternary organic solar cells offer 14% power conversion efficiency显示文摘Organic solar cells(OSCs)have advantages like light-weight,flexibility,colorfulness and solution processability[1].The active layer of OSCs generally contains two organic semiconductors:an electron donor and an electron acceptor.The donor and acceptor make nanoscale phase separation to allow efficient exciton dissociation and also form a three-dimensional(3D)passage to | Zuo Xiao Xue Jia Liming Ding | 2017 | Science Bulletin2017，62，23： | 48 |
| 2 | A chlorinated copolymer donor demonstrates a 18.13% power conversion efficiency显示文摘The rapid development of low-bandgap(LBG)nonfullerene acceptors and wide-bandgap(WBG)copolymer donors in recent years has boosted the power conversion efficiency(PCE)of organic solar cells(OSCs)to the 18%level[1−21].The commercialization of OSCs is highly expected.However,critical issues like the cost and the stability also determine whether OSCs can enter the market or not[22]. | Jianqiang Qin Lixiu Zhang Chuantian Zuo Zuo Xiao Yongbo Yuan Shangfeng Yang Feng Hao Ming Cheng Kuan Sun Qinye Bao Zhengyang Bin Zhiwen Jin and Liming Ding | 2021 | Journal of Semiconductors2021，42，1： | 19 |
| 3 | Thermostable single-junction organic solar cells with a power conversion efficiency of 14.62%显示文摘Organic solar cells(OSCs)have drawn substantial attention in recent two decades due to their features of solution processability,low cost,and light weight[1].The active layer of OSCs is usually composed of an electron donor(D)and an electron acceptor(A).The D/A system can form interpenetrated nanoscale network,which allows efficient exciton dissociation and hence charge carrier generation.However,the efficiency of such binary OSCs is gen- | Hui Li Zuo Xiao Liming Ding Jizheng Wang | 2018 | Science Bulletin2018，63，6： | 17 |
| 4 | Thiolactone copolymer donor gifts organic solar cells a 16.72% efficiency显示文摘Since 1995,bulk-heterojunction organic solar cells consisting of one or two organic donors and one or two organic acceptors have been fighting for high power conversion efficiencies(PCEs)and good stability[1].Until recent years,this next-generation photovoltaic technology starts to offer decent PCEs,shedding the light on commercialization,and attracting great attention again[2-14].Compared w让h the continuously emerging highperformance nonfullerene acceptors,high-performance donors are rare. | Ji Xiong Ke Jin Yufan Jiang Jianqiang Qin Tan Wang Jinfeng Liu Qishi Liu Haili Peng Xiongfeng Li Anxin Sun Xianyi Meng Lixiu Zhang Ling Liu Wenting Li Zhimin Fang Xue Jia Zuo Xiao Yaqing Feng Xiaotao Zhang Kuan Sun Shangfeng Yang Shengwei Shi Liming Ding | 2019 | Science Bulletin2019，64，21： | 17 |
| 5 | Induced J-aggregation in acceptor alloy enhances photocurrent显示文摘Carbon-oxygen-bridged (CO-bridged) ladder-type units already proved to be promising electron-donating building blocks for making acceptor-donor-acceptor (A-D-A) nonfullerene acceptors [1].Compared with traditional carbon-bridged (C-bridged) units, CObridged units present stronger electron-donating capability due to electron-rich oxygen atoms. | Ling Liu Qishi Liu Zuo Xiao Shangfeng Yang Yongbo Yuan Liming Ding | 2019 | Science Bulletin2019，64，15： | 13 |
| 6 | 5H-dithieno[3,2-b:20,30-d]pyran-5-one unit yields efficient wide-bandgap polymer donors显示文摘Recently,great progress has been made in organic solar cells due to the emergence of high-performance nonfullerene acceptors[1-6].Over 16%and 17%power conversion efficiencies(PCEs)were achieved for nonfullerene-acceptor-based single-junction and tandem cells,respectively[7,8].Owing to complementary light absorption,wide-bandgap donor-acceptor(D-A)copolymers are ideal electron-donating partners for nonfullerene acceptors.However,efficient D-A copolymer donors are still limited. | Jinfeng Liu Ling Liu Chuantian Zuo Zuo Xiao Yingping Zou Zhiwen Jin Liming Ding | 2019 | Science Bulletin2019，64，22： | 13 |
| 7 | 厚膜有机太阳电池效率突破16%显示文摘近年来有机太阳电池效率突飞猛进,单结电池效率已经突破18%,然而这些高效率电池的活性层厚度通常只有100 nm左右,随着厚度增加,电池效率下降明显.为了实现有机太阳电池的产业化,发展对厚度不敏感,且可适用于卷对卷印刷制备的高性能厚膜电池势在必行.本文通过在D18:Y6二元活性层中加入少量富勒烯受体PC61BM,使得电池对厚度的敏感性显著降低. PC61BM的加入使厚膜活性层的电子和空穴迁移率明显提高,载流子传输更加平衡,并且显著降低了陷阱辅助复合.D18:Y6:PC61BM(1:1.6:0.2)三元电池在活性层厚度超过300 nm时,还能保持16%以上的效率,是目前性能最优异的厚膜有机太阳电池之一. | 秦建强 张立秀 肖作 陈珊珊 孙宽 臧志刚 易陈谊 袁永波 靳志文 郝锋 程远航 保秦烨 丁黎明 | 2020 | Science Bulletin2020，65，23： | 9 |
| 8 | Organic photovoltaic cell with 17% efficiency and superior processability显示文摘The development of organic photoactive materials,especially the newly emerging non-fullerene electron acceptors(NFAs),has enabled rapid progress in organic photovoltaic(OPV)cells in recent years.Although the power conversion efficiencies(PCEs)of the top-performance OPV cells have surpassed 16%,the devices are usually fabricated via a spin-coating method and are not suitable for large-area production.Here,we demonstrate that the fine-modification of the flexible side chains of NFAs can yield 17%PCE for OPV cells.More crucially,as the optimal NFA has a suitable solubility and thus a desirable morphology,the high efficiencies of spin-coated devices can be maintained when using scalable blade-coating processing technology.Our results suggest that optimization of the chemical structures of the OPV materials can improve device performance.This has great significance in larger-area production technologies that provide important scientific insights for the commercialization of OPV cells. | Yong Cui Huifeng Yao Ling Hong Tao Zhang Yabing Tang Baojun Lin Kaihu Xian Bowei Gao Cunbin An Pengqing Bi Wei Ma Jianhui Hou | 2020 | National Science Review2020，7，7： | 7 |
| 9 | The origin and evolution of Y6 structure显示文摘During last several years,electron acceptors for organic sol-ar cells(OSCs)have experienced three major innovations.The first invention was a fused-ring electron acceptor(FREA),ITIC,reported by Zhan et al.in 2015,which consists of an in-dacenodithienothiophene(IDTT)donor core and two 3-dicy-anomethylene-1-indanone(IC)as the end-groups[1].ITIC cells exhibited comparable performance to PC61BM cells,and in-spired the development of hundreds nonfullerene acceptors(NFAs).The second breakthrough is the 14.08%power con-version efficiency(PCE)delivered by a low-bandgap non-fullerene acceptor COi 8DFIC with strong NIR absorption,invented by Ding et al.[2,3].The third star acceptor is Y6,developed by Zou et al.in 2019[4].Y6 and its derivatives(Y-series NFAs)are very promising[5,6].Ding et al.developed polymer donor D18 and its outstanding derivatives[7−10],and the D18:Y6 cells gave a PCE of 18.22%[7],which was the first time for OSCs to deliver PCEs over 18%. | Jiamin Cao Lifei Yi Liming Ding | 2022 | Journal of Semiconductors2022，43，3： | 3 |
| 10 | 应用于高分子给体的稠环双内酯构筑单元显示文摘近年来,由于新型、高效高分子给体和非富勒烯受体的不断涌现,有机太阳电池性能得以快速提高.本文开发了基于稠环双内酯构筑单元的高分子给体材料,设计合成了两种五元稠环双内酯单元BL1和BL2,并进一步用这两种单元构筑了D-A共轭高分子给体P1和P2.BL1和BL2的分子结构通过X射线单晶衍射方法得到解析.BL1呈现完全平面化的分子结构,BL2则由于分子中两个相邻羰基的排斥作用而呈现一种扭曲平面结构.由于双内酯基团的强吸电子性以及BL1和BL2单元较大的稠环平面,高分子给体P1和P2展现出较深的HOMO能级和较好的空穴迁移率.基于上述高分子给体和非富勒烯受体IT-4F的太阳电池P1:IT-4F和P2:IT-4F实现了较高的开路电压,分别为0.96和0.94 V,能量转换效率分别为10.44%和7.31%. | 熊骥 许金桂 江宇凡 肖作 保秦烨 郝锋 冯亚青 张斌 靳志文 丁黎明 | 2020 | Science Bulletin2020，65，21： | 3 |
| 11 | Near-infrared organic photoelectric materials for lightharvesting systems: Organic photovoltaics and organic photodiodes显示文摘The inherent advantages of organic optoelectronic materials endow lightharvesting systems,including organic photovoltaics(OPVs)and organic photodiodes(OPDs),with multiple advantages,such as low-cost manufacturing,light weight,flexibility,and applicability to large-area fabrication,make them promising competitors with their inorganic counterparts.Among them,nearinfrared(NIR)organic optoelectronic materials occupy a special position and have become the subject of extensive research in both academia and industry.The introduction of NIR materials into OPVs extends the absorption spectrum range,thereby enhancing the photon-harvesting ability of the devices,due to which they have been widely used for the construction of semitransparent solar cells with single-junction or tandem architectures.NIR photodiodes have tremendous potential in industrial,military,and scientific applications,such as remote control of smart electronic devices,chemical/biological sensing,environmental monitoring,optical communication,and so forth.These practical and potential applications have stimulated the development of NIR photoelectric materials,which in turn has given impetus to innovation in light-harvesting systems.In this review,we summarize the common molecular design strategies of NIR photoelectric materials and enumerate their applications in OPVs and OPDs. | Boming Xie Zhongxin Chen Lei Ying Fei Huang Yong Cao | 2020 | InfoMat2020，2，1： | 3 |
| 12 | Side chain engineering investigation of non-fullerene acceptors for photovoltaic device with efficiency over 15%显示文摘Side chain engineering plays a substantial role for high-performance organic solar cells (OSCs).Herein,a series of non-fullerene acceptor (NFA) molecules with A-D-A structures,TTCn-4F,with gradient substituent lengths of terminal side chains (T-SCs) on the molecular backbones have been designed and synthesized.The effects of T-SCs length,ranging from hydrogen atom to n-dodecyl,their optoelectronic properties,thin film molecular packing,blend film morphology,and overall photovoltaic performance have been systematically studied.The results show that among this series of molecules,TTC8-4F with n-octyl substituent,showed the best photovoltaic performance when applied with PM6 as the donor due to its favorable morphology,balanced charge mobility,effective exciton dissociation and less charge recombination.Based on this,its ternary device with F-Br as the secondary acceptor achieved a high PCE of 15.34%with the simultaneously enhanced Voc of 0.938 V,Jscof 22.66 mA cm^-2,and FF of 72.15%.These results indicate that the engineering of T-SCs is an effective strategy for designing high-performance NFAs. | Xin Zhang Yunqian Ding Huanran Feng Huanhuan Gao Xin Ke Hongtao Zhang Chenxi Li Xiangjian Wan Yongsheng Chen | 2020 | Science China Chemistry2020，63，12： | 2 |
| 13 | 通过水处理PEDOT:PSS制备效率超过16.7%的有机太阳电池显示文摘本文开展了高效有机太阳电池的研究,基于空穴传输层的调控,制备了光电效率为16.75%的三元器件.在传统高效太阳电池中,PEDOT:PSS是应用最为广泛的一种空穴传输材料,但是过量的PSS会降低材料的导电性能,并腐蚀衬底和有源层降低器件的稳定性.本文通过去离子水冲洗PEDOT:PSS薄膜去除多余的PSS,剩余的PEDOT和PSS仍然以库仑力相互作用形成稳定的界面层.经过多种表征手段分析,相对于未处理的PEDOT:PSS,处理后的薄膜厚度减小,导电性和空穴迁移率明显提升,界面处的阻抗显著下降.以PM6为给体,Y6和PC71BM作为共同受体制备三元有机太阳电池,未处理的器件能量转化效率为15.9%.将PEDOT:PSS薄膜经过水处理之后,器件短路电流和填充因子分别由25.35 mA cm^-2提升到25.86 mA cm^-2,0.744提高到0.762,能量转化效率达到16.75%,这在有机太阳电池中处于较高水平. | 李其聪 孙阳 杨诚 刘孔 MdRasidul Islam 李龙 王智杰 曲胜春 | 2020 | Science Bulletin2020，65，9： | 2 |
| 14 | Fabrication and luminescence of KGdF_4:Yb^(3+)/Er^(3+) nanoplates and their improving performance for polymer solar cells显示文摘Solar energy remains the most abundant renewable energy resource available to us[1].Continuous efforts have been invested to enhance the conversion of light to electricity by the diverse range of applications[2].Especially,polymer solar cells(PSCs)have reminded extensive attention own to flexibility,light-weight | Jiqing Jiao Yao Li Wenfei Shen Shasha Gai Jianguo Tang Yao Wang Linjun Huang Jixian Liu Wei Wang Laurence A.Belfiore | 2018 | Science Bulletin2018，63，4： | 2 |
| 15 | Side chain engineering on D18 polymers yields 18.74%power conversion efficiency显示文摘Donor-acceptor(D-A)conjugated copolymers contain-ing fused-ring acceptor units demonstrate outstanding per-formance in organic solar cells(OSCs)[1−13].We have in-vented highly efficient D-A copolymer donors D18 and D18-Cl by using a fused-ring acceptor unit,dithieno[3′,2′:3,4;2″,3″:5,6]benzo[1,2-c][1,2,5]thiadiazole(DTBT)[1,2].OSCs with D18 or D18-Cl gave power conversion efficiencies(PCEs)of 18.56%and 18.69%,respectively[3,4].Side chain engineering is an effective approach to improve the per-formance of conjugated polymers in optoelectronic devi-ces[14−16].The alkyl side chains not only determine polymers’solubility,but also influence their crystallinity and mobility.In this work,we develop two efficient donors D18-B and D18-Cl-B via side chain engineering on D18 polymers(Fig.1(a)).These donors offer PCEs up to 18.74%(certified 18.2%)in tern-ary OSCs. | Xianyi Meng Ke Jin Zuo Xiao Liming Ding | 2021 | Journal of Semiconductors2021，42，10： | 2 |
| 16 | Control over π-π stacking of heteroheptacene-based nonfullerene acceptors for 16% efficiency polymer solar cells显示文摘Nonfullerene acceptors are being investigated for use in polymer solar cells(PSCs),with their advantages of extending the absorption range,reducing the energy loss and therefore enhancing the power conversion efficiency(PCE).However,to further boost the PCE,mobilities of these nonfullerene acceptors should be improved.For nonfullerene acceptors,the π-π stacking distance between cofacially stacked molecules significantly affects their mobility.Here;we demonstrate a strategy to increase the mobility of heteroheptacene-based nonfullerene acceptors by reducing their n'-7r stacking distances via control over the bulkiness of lateral side chains.Incorporation of 2-butyloctyl substituents into the nonfullerene acceptor(M36)leads to an increased mobility with a reduced π-π stacking distance of 3.45 A.Consequently,M36 affords an enhanced PCE of 16%,which is the highest among all acceptor-donor-acceptor-type nonfullerene acceptors to date.This strategy of control over the bulkiness of side chains on nonfullerene acceptors should aid the development of more efficient PSCs. | Yunlong Ma Dongdong Cai Shuo Wan Pan Yin Pengsong Wang Wenyuan Lin Qingdong Zheng | 2020 | National Science Review2020，7，12： | 2 |
| 17 | 有机光伏电池受体材料研究显示文摘为提高有机光伏电池的能量转化效率,需开发新型受体材料。重点介绍了富勒烯、有机小分子、有机高分子3类受体材料以及相关的研究成果,并阐述了这些受体材料的演变规律,以及发展过程中面临的挑战和未来发展的方向,以期实现有机光伏电池的商业化应用。 | 李其聪 曹可慰 吴怡然 | 2021 | 信息技术与标准化2021，，12： | 1 |
| 18 | 本征惰性的超支化界面层增强有机太阳能电池稳定性显示文摘较差的稳定性是限制有机太阳能电池产业化的主要因素之一.传统阴极界面对稠环电子受体具有严重的化学反应活性或光催化活性,限制了高效有机太阳能电池稳定性的提升.本文使用苝四甲酸二酐对乙氧基化聚乙烯亚胺(PEIE)的残留伯氨基端基封端,得到具有超支化结构的聚合物阴极界面材料PDIEIE.该超支化界面修饰氧化铟锡透明电极后,能有效降低电极功函数,实现器件较高的光电转化效率.更重要的是, PDIEIE作为阴极界面材料,相对于金属氧化物界面材料对稠环电子受体没有光催化活性,其相对于PEIE表现出显著抑制的化学反应活性,因此有效提升了有机太阳能电池的稳定性,并保持了器件较高的光电转化效率. | 荔雅文 李腾飞 王嘉宇 占肖卫 林禹泽 | 2022 | Science Bulletin2022，67，2： | 1 |
| 19 | 卷积神经网络在新型非富勒烯受体分子生成与性能预测上的应用显示文摘近年来,有机太阳能电池中非富勒烯小分子受体因其拓展了吸收光谱的范围、能够调节激子解离能量和具有灵活的给体-受体形貌等优点使得器件效率越来越接近产业化的目标.本研究借助本课题组之前构建的分子生成和性质预测的卷积神经网络模型,来生成和筛选出具有高效解离激子的前线轨道能量的新型非富勒烯小分子受体.首先生成模型经数据库充分训练并利用小数据集进行微调后生成200多个接近目标轨道能量(最高占据分子轨道(the highest occupied molecular orbital,HOMO)和最低未占据分子轨道(the lowest unoccupied molecular orbital,LUMO)的能量分别为-5.60和-3.60 eV)的分子,然后利用预测模型进一步筛选并预测分子碎片对轨道能量的贡献,接着将这些分子与数据库中具有相近前线轨道能量的分子共同聚类挑选出具有不同化学空间的10个新型受体分子,最后通过从头算验证了轨道能级、分子碎片对轨道贡献预测的准确性,并给出分子光吸收的振子强度.进一步利用生成和预测模型提供了具有另一组轨道能量(HOMO和LUMO能量分别为-5.10和-3.10 eV)的10个非富勒烯小分子,其性质预测与从头算结果一致,证明了生成和预测模型的鲁棒性和结果的可靠性.本研究预测的分子也提供了设计具有高性能非富勒烯受体分子骨架的思路. | 杨新玉 彭师平 赵仪 | 2022 | 厦门大学学报(自然科学版)2022，61，5： | 1 |
| 20 | Efficient organic solar cells achieved at a low energy loss显示文摘Organic photovoltaics(OPVs)have attracted much attention because of the advantages in low-cost and large-area fabrication and the great potentials in achieving flexible and semi-transparent devices(1)However,compared with inorganic and perovskite solar cells[2],OPVs show relatively low photoelectric conversion efficiencies,which is admittedly attributed to intrinsically low dielectric constants of organic materials[3]resulting in large energy losses(Eloss=EgqVoc,where Eg is the optical bandgap of the photoactive layer,Voc is the open-circuit voltage of photovoltaic devices and q is elementary charge). | Wenrui Liu Jianyun Zhang Shengjie Xu Xiaozhang Zhu | 2019 | Science Bulletin2019，64，16： | 1 |
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