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Halogenated Tetraazapentacenes with Electron Mobility as High as 27.8 cm(2) V-1 s(-1) in Solution-Processed n-Channel Organic Thin-Film Transistors
Chu, Ming1; Fan, Jian-Xun2,3; Yang, Shuaijun1; Liu, Dan4; Ng, Chun Fai1; Dong, Huanli4; Ren, Ai-Min2; Miao, Qian1
2018-09-20
Source PublicationADVANCED MATERIALS
ISSN0935-9648
Volume30Issue:38
AbstractMolecular engineering of tetraazapentacene with different numbers of fluorine and chlorine substituents fine-tunes the frontier molecular orbitals, molecular vibrations, and pi-pi stacking for n-type organic semiconductors. Among the six halogenated tetraazapentacenes studied herein, the tetrachloro derivative (4Cl-TAP) in solution-processed thin-film transistors exhibits electron mobility of 14.9 +/- 4.9 cm(2) V-1 s(-1) with a maximum value of 27.8 cm(2) V-1 s(-1), which sets a new record for n-channel organic field-effect transistors. Computational studies on the basis of crystal structures shed light on the structure-property relationships for organic semiconductors. First, chlorine substituents slightly decrease the reorganization energy of the tetraazapentacene whereas fluorine substituents increase the reorganization energy as a result of fine-tuning molecular vibrations. Second, the electron transfer integral is very sensitive to subtle changes in the 2D pi-stacking with brickwork arrangement. The unprecedentedly high electron mobility of 4Cl-TAP is attributed to the reduced reorganization energy and enhanced electron transfer integral as a result of modification of tetraazapentacene with four chlorine substituents.
KeywordCharge Transport Electron Mobility Organic Field-effect Transistors Organic Semiconductors
DOI10.1002/adma.201803467
Indexed BySCI
Language英语
WOS IDWOS:000444671900030
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/42988
Collection中国科学院化学研究所
Corresponding AuthorRen, Ai-Min; Miao, Qian
Affiliation1.Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China
2.Jilin Univ, Inst Theoret Chem, Lab Theoret & Computat Chem, Changchun 130023, Jilin, Peoples R China
3.Weinan Normal Univ, Coll Chem & Life Sci, Weinan 714000, Peoples R China
4.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Chu, Ming,Fan, Jian-Xun,Yang, Shuaijun,et al. Halogenated Tetraazapentacenes with Electron Mobility as High as 27.8 cm(2) V-1 s(-1) in Solution-Processed n-Channel Organic Thin-Film Transistors[J]. ADVANCED MATERIALS,2018,30(38).
APA Chu, Ming.,Fan, Jian-Xun.,Yang, Shuaijun.,Liu, Dan.,Ng, Chun Fai.,...&Miao, Qian.(2018).Halogenated Tetraazapentacenes with Electron Mobility as High as 27.8 cm(2) V-1 s(-1) in Solution-Processed n-Channel Organic Thin-Film Transistors.ADVANCED MATERIALS,30(38).
MLA Chu, Ming,et al."Halogenated Tetraazapentacenes with Electron Mobility as High as 27.8 cm(2) V-1 s(-1) in Solution-Processed n-Channel Organic Thin-Film Transistors".ADVANCED MATERIALS 30.38(2018).
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