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| 1 | 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 |
| 2 | 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 |
| 3 | D18, an eximious solar polymer!显示文摘Organic solar cell(OSC)is a promising photovoltaic technology with great commercialization potential due to the advantages like solution-processing,roll-to-roll fabrication,lightweight,flexibility,and semitransparency[1−7].Conjugated polymer donors are key materials for OSCs[8]. | Ke Jin Zuo Xiao Liming Ding | 2021 | Journal of Semiconductors2021，42，1： | 5 |
| 4 | Dithieno[3′,2′:3,4;2″,3″:5,6]benzo[1,2-c][1,2,5]oxadiazole-based polymer donors with deep HOMO levels显示文摘Star nonfullerene acceptors like ITIC[1],IDIC[2],O-IDTBR[3],IT-4 F[4],COi8 DFIC[4],Y6[6]etc.continuously emerge and keep pushing the power conversion efficiency(PCE)of organic solar cells forward.These small molecules generally show narrow bandgaps,excellent visible to NIR light-harvesting capability,good electron mobility. | Xiongfeng Li Jingui Xu Zuo Xiao Xingzhu Wang Bin Zhang Liming Ding | 2021 | Journal of Semiconductors2021，42，6： | 3 |
| 5 | 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 |
| 6 | Post-sulphuration enhances the performance of a lactone polymer donor显示文摘Remarkable progress has been made in conjugated copoly-mer donors due to the development of novel fused-ring ac-ceptor(FRA)building units[1−15].The copolymers based on FRA units have delivered excellent power conversion efficien-cies(PCEs)up to 18.69%in organic solar cells(OSCs)[16].Fused-ring aromatic lactones are promising FRA units[17−19]. | Yufan Jiang Ke Jin Xiujuan Chen Zuo Xiao Xiaotao Zhang Liming Ding | 2021 | Journal of Semiconductors2021，42，7： | 2 |
| 7 | 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 |
| 8 | 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 |
| 9 | Polymer acceptors for all-polymer solar cells显示文摘Bulk-heterojunction polymer solar cells(PSCs)as a clean and renewable energy resource have attracted great attention from both academia and industry[1−20].Recently non-fullerene PSCs based on polymer donors(PDs)and small molecule acceptors(SMAs)have achieved remarkable success with the power conversion efficiencies(PCEs)over 18%[21−26]. | Xiaofei Ji Zuo Xiao Huiliang Sun Xugang Guo Liming Ding | 2021 | Journal of Semiconductors2021，42，8： | 0 |
| 10 | A wide-bandgap copolymer donor with a 5-methyl-4Hdithieno[3,2-e:2′,3′-g]isoindole-4,6(5H)-dione unit显示文摘Wide-bandgap copolymer donors with fused-ring accept-or units(FAUs)present excellent performance in non-fullerene organic solar cells due to their complementary light-absorption with nonfullerene acceptors,deep the highest occupied molecular orbital(HOMO)levels and high hole mobilities[1−4]. | Anxin Sun Jingui Xu Guanhua Zong Zuo Xiao Yong Hua Bin Zhang Liming Ding | 2021 | Journal of Semiconductors2021，42，10： | 0 |
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