Surface Polarity and Self-Structured Nanogrooves Collaboratively Oriented Molecular Packing for High Crystallinity toward Efficient Charge Transport
文献类型：期刊论文
| 作者 | Ji, Deyang1,5,6; Xu, Xiaomin1,7; Jiang, Longfeng1; Amirjalayer, Saeed5,6,8; Jiang, Lang1; Zhen, Yonggang1; Zou, Ye1; Yao, Yifan1; Dong, Huanli1; Yu, Junsheng4 |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2017-02-22 |
| 卷号 | 139期号:7页码:2734-2740 |
| 英文摘要 | Efficient charge transport in organic semiconductors is essential for construction of high performance optoelectronic devices. Herein, for the first time, we demonstrate that poly(amic acid) (PAA), a facilely deposited and annealing-free dielectric layer, can tailor the growth of organic semiconductor films with large area and high crystallinity toward efficient charge transport and high mobility in their thin film transistors. Pentacene is used as a model system to demonstrate the concept with mobility up to 30.6 cm(2) V-1 s(-1), comparable to its high quality single crystal devices. The structure of FAA has corrugations with OH groups pointing out of the surface, and the presence of an amide bond further allows adjacent polymer strands to interact via hydrogen bonding, leading to a self-rippled surface perpendicular to the corrugation. On the other hand, the strong polar groups (-COOH/-CONH) of PAA could provide repulsive forces between PAA and pentacene, which results in the vertical orientation of pentacene on the dielectric surface. Indeed, in comparison with its imidized counterpart polyimide (PI), PAA dielectric significantly enhances the film crystallinity, drastically increases the domain size, and decreases the interface trap density, giving rise to superior device performance with high mobility. This concept can be extended to more organic semiconducting systems, e.g., 2,6-diphenylanthracene (DPA), tetracene, copper phthalocyanine (CuPc), and copper hexadecafluorophthalocyanine (F16CuPc), demonstrating the general applicability. The results show the importance of combining surface nanogrooves with the strong polarity in orienting the molecular arrangement for high crystallinity toward efficient charge transport in organic semiconductors. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38263]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China 2.Tianjin Univ, Sch Sci, Dept Chem, Tianjin Key Lab Mol Optoelect Sci, Tianjin 300072, Peoples R China 3.Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Tianjin 300072, Peoples R China 4.Univ Elect Sci & Technol China, Sch Optoelect Informat, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Peoples R China 5.Ctr Nanotechnol, Heisenbergstr 11, D-48149 Munster, Germany 6.Westfalische Wilhelms Univ, Inst Phys, Wilhelm Klemm Str 10, D-48149 Munster, Germany 7.Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China 8.Westfalische Wilhelms Univ Munster, Ctr Multiscale Theory & Computat, Wilhelm Klemm Str 10, D-48149 Munster, Germany |
| 推荐引用方式 GB/T 7714 | Ji, Deyang,Xu, Xiaomin,Jiang, Longfeng,et al. Surface Polarity and Self-Structured Nanogrooves Collaboratively Oriented Molecular Packing for High Crystallinity toward Efficient Charge Transport[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2017,139(7):2734-2740. |
| APA | Ji, Deyang.,Xu, Xiaomin.,Jiang, Longfeng.,Amirjalayer, Saeed.,Jiang, Lang.,...&Hu, Wenping.(2017).Surface Polarity and Self-Structured Nanogrooves Collaboratively Oriented Molecular Packing for High Crystallinity toward Efficient Charge Transport.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,139(7),2734-2740. |
| MLA | Ji, Deyang,et al."Surface Polarity and Self-Structured Nanogrooves Collaboratively Oriented Molecular Packing for High Crystallinity toward Efficient Charge Transport".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 139.7(2017):2734-2740. |
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来源：化学研究所
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