Solution-Processed Naphthalene Diimide Derivatives as n-Type Semiconductor Materials

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• 作者：Ya-Lien Lee ; Hui-Lin Hsu ; Szu-Ying Chen ; Tri-Rung Yew
• 刊名：Journal of Physical Chemistry C
• 出版年：2008
• 出版时间：February 7, 2008
• 年：2008
• 卷：112
• 期：5
• 页码：1694 - 1699
• 全文大小：400K
• 年卷期：v.112,no.5(February 7, 2008)
• ISSN：1932-7455

文摘

Two soluble 1,4,5,8-naphthalenetetracarboxylic diimide (NTCDI) derivatives with phenylmethyl and (trifluoro-methyl)benzyl groups (NTCDI-P and NTCDI-F, respectively) were synthesized and used as semiconductorlayers in organic thin-film transistors (OTFTs) by a spin-coating process in air. These two synthesized materialswere characterized by ¹H NMR and UV-vis spectra as well as mass analysis. The morphology and crystallinityof spin-coated NTCDI-P and NTCDI-F films have been inspected using atomic force microscopy (AFM) andX-ray diffraction (XRD), respectively. The channel mobilities of these two NTCDI derivatives were calculatedto be about 1.2 × 10^-3 cm² V^-1 s^-1 in air, which degraded slightly while stabilized for NTCDI-F OTFTsafter exposure in air for 1 month.