Synergy of Liquid-Crystalline Small-Molecule and Polymeric Donors Delivers Uncommon Morphology Evolution and 16.6% Efficiency Organic Photovoltaics
文献类型：期刊论文
| 作者 | Yan, Cenqi3,4; Tang, Hua3,4,5; Ma, Ruijie1,6; Zhang, Ming2,7; Liu, Tao1,6; Lv, Jie5; Huang, Jiaming3,4; Yang, YanKang2,7; Xu, Tongle5; Kan, Zhipeng5 |
| 刊名 | ADVANCED SCIENCE
 |
| 出版日期 | 2020-06-18 |
| 页码 | 8 |
| 关键词 | liquid-crystalline molecules morphology organic solar cells ternary structures |
| DOI | 10.1002/advs.202000149 |
| 通讯作者 | Liu, Tao(liutaozhx@ust.hk) ; Liu, Feng(fengliu82@sjtu.edu.cn) ; Li, Gang(gang.w.li@polyu.edu.hk) |
| 英文摘要 | Achieving an ideal morphology is an imperative avenue for enhancing key parameters toward high-performing organic solar cells (OSCs). Among a myriad of morphological-control methods, the strategy of incorporating a third component with structural similarity and crystallinity difference to construct ternary OSCs has emerged as an effective approach to regulate morphology. A nematic liquid-crystalline benzodithiophene terthiophene rhodamine (BTR) molecule, which possesses the same alkylthio-thienyl-substituted benzo moiety but obviously stronger crystallinity compared to classical medium-bandgap polymeric donor PM6, is employed as a third component to construct ternary OSCs based on a PM6:BTR:Y6 system. The doping of BTR (5 wt%) is found to be enough to improve the OSC morphology-significantly enhancing the crystallinity of the photoactive layer while slightly reducing the donor/acceptor phase separation scale simultaneously. Rarely is such a morphology evolution reported. It positively affects the electronic properties of the device-prolongs the carrier lifetime, shortens the photocurrent decay time, facilitates exciton dissociation, charge transport, and collection, and ultimately boosts the power conversion efficiency from 15.7% to 16.6%. This result demonstrates that the successful synergy of liquid-crystalline small-molecule and polymeric donors delicately adjusts the active-layer morphology and refines device performance, which brings vibrancy to the OSC research field. |
| 资助项目 | Research Grants Council of Hong Kong[15218517] ; Research Grants Council of Hong Kong[C5037-18G] ; Shenzhen Science and Technology Innovation Commission[JCYJ20170413154602102] ; Hong Kong Polytechnic University[1-ZE29] ; National Youth Thousand Program Project[R52A199Z11] ; National Special Funds for Repairing and Purchasing Scientific Institutions[Y72Z090Q10] ; Artificial Intelligence Key Project of Chongqing[cstc2017rgzn-zdyfX0030] ; DOE, Office of Science, and Office of Basic Energy Sciences ; [YW3Y] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000540812700001 |
| 出版者 | WILEY |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/11452]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Liu, Tao; Liu, Feng; Li, Gang |
| 作者单位 | 1.Hong Kong Univ Sci & Technol, Hong Kong Branch, Chinese Natl Engn Res Ctr Tissue Restorat & Recon, Kowloon, Clear Water Bay, Hong Kong 999077, Peoples R China 2.Shanghai Jiao Tong Univ, Collaborat Innovat Ctr IFSA CICIFSA, Shanghai 200240, Peoples R China 3.Hong Kong Polytech Univ, ShenZhen Res Inst, Shenzhen 518057, Peoples R China 4.Hong Kong Polytech Univ, Dept Elect & Informat Engn, Hung Hum Kowloon, Hong Kong 999077, Peoples R China 5.Chongqing Inst Green & Intelligent Technol, Organ Semicond Res Ctr, Chongqing 400714, Peoples R China 6.Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Clear Water Bay, Hong Kong 999077, Peoples R China 7.Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Cenqi,Tang, Hua,Ma, Ruijie,et al. Synergy of Liquid-Crystalline Small-Molecule and Polymeric Donors Delivers Uncommon Morphology Evolution and 16.6% Efficiency Organic Photovoltaics[J]. ADVANCED SCIENCE,2020:8. |
| APA | Yan, Cenqi.,Tang, Hua.,Ma, Ruijie.,Zhang, Ming.,Liu, Tao.,...&Li, Gang.(2020).Synergy of Liquid-Crystalline Small-Molecule and Polymeric Donors Delivers Uncommon Morphology Evolution and 16.6% Efficiency Organic Photovoltaics.ADVANCED SCIENCE,8. |
| MLA | Yan, Cenqi,et al."Synergy of Liquid-Crystalline Small-Molecule and Polymeric Donors Delivers Uncommon Morphology Evolution and 16.6% Efficiency Organic Photovoltaics".ADVANCED SCIENCE (2020):8. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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