Interfacial molecular screening of polyimide dielectric towards high-performance organic field-effect transistors

doi:10.1016/j.cclet.2023.108796

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	Interfacial molecular screening of polyimide dielectric towards high-performance organic field-effect transistors
	Y. S. Zheng, H. C. Li, T. Jiang, F. Jiao, J. Li, Y. Lei, G. F. Tian, J. S. Bi, Y. D. Xuan, L. Q. Li, D. Y. Ji and W. P. Hu
	2024
发表期刊	Chinese Chemical Letters
ISSN	1001-8417
卷号	35 期号:2 页码:4
摘要	The compatibility of the gate dielectrics with semiconductors is vital for constructing efficient conducting channel for high charge transport. However, it is still a highly challenging mission to clearly clarify the relationship between the dielectric layers and the chemical structure of semiconductors, especially vacuum-deposited small molecules. Here, interfacial molecular screening of polyimide (Kapton) dielectric in organic field-effect transistors (OFETs) is comprehensively studied. It is found that the semiconducting small molecules with alkyl side chains prefer to form a high-quality charge transport layer on polyimide (PI) dielectrics compared with the molecules without alkyl side chains. On this basis, the fabricated transistors could reach the mobility of 1.2 cm 2 V -1 s -1 the molecule with alkyl side chains on bare PI dielectric. What is more, the compatible semiconductor and dielectric would further produce a low activation energy ( E A ) of 3.01 meV towards efficient charge transport even at low temperature ( e.g. , 100 K, 0.9 cm 2 V -1 s -1 ). Our research provides a guiding scheme for the construction of high-performance thin-film field-effect transistors based on PI dielectric layer at room and low temperatures. (c) 2023 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
DOI	10.1016/j.cclet.2023.108796
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收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68256
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Y. S. Zheng, H. C. Li, T. Jiang, F. Jiao, J. Li, Y. Lei, G. F. Tian, J. S. Bi, Y. D. Xuan, L. Q. Li, D. Y. Ji and W. P. Hu. Interfacial molecular screening of polyimide dielectric towards high-performance organic field-effect transistors[J]. Chinese Chemical Letters,2024,35(2):4.
APA	Y. S. Zheng, H. C. Li, T. Jiang, F. Jiao, J. Li, Y. Lei, G. F. Tian, J. S. Bi, Y. D. Xuan, L. Q. Li, D. Y. Ji and W. P. Hu.(2024).Interfacial molecular screening of polyimide dielectric towards high-performance organic field-effect transistors.Chinese Chemical Letters,35(2),4.
MLA	Y. S. Zheng, H. C. Li, T. Jiang, F. Jiao, J. Li, Y. Lei, G. F. Tian, J. S. Bi, Y. D. Xuan, L. Q. Li, D. Y. Ji and W. P. Hu."Interfacial molecular screening of polyimide dielectric towards high-performance organic field-effect transistors".Chinese Chemical Letters 35.2(2024):4.

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