Soluable Peantacene and Antradithiophene Derivatives for Organic Semiconductor
| Autor: | Jhe-Wei Jhuang, 莊哲維 |
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| Rok vydání: | 2007 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 95 Two new soluble organic semiconductor material systems were investigated. The first system is based on pentacene (Pen), five new organic semiconductor materials: 6,13-Bis(phenylethynyl)pentacene (BPE-Pen)、6,13-Bis(4-pentanoylphenylethynyl)pentacene (BPPE-Pen)、6,13-Bis(4-triethylsiliylphenylethynyl)pentacene (BTPE-Pen)、6,13-Bis(4-pentanoylphenyl)pentacene (BPP-Pen)、6,13-Bis(4-triethylsiliylphenyl)pentacene (BTE-Pen) were prepared. The second system is based on anthradithiophene (ADT), three new organic semiconductor materials: 5,11-Bis(phenylethynyl)anthradithiophene (BPE-ADT)、5,11-Bis(4-pentanoylphenylethynyl)antradithiophene (BBPE-ADT)、5,11-Bis(4-pentanoylphenyl)antradithiophene (BPP-ADT) were synthesized. BPE-Pen、BPE-ADT、BTE-Pen exhibited as P-type semiconductor。BPE-ADT shows the stability enhancement and with current mobility of 1.4x10-2 cm2/Vs, on/off ratio ~ 104 and threshold voltage -6.0V. The molecular structures of BPE-ADT and BPE-pen have been determined by single-crystal X-ray diffraction and reveal their herringbone packing and the phenyl group in both compounds are not coplanar to the central moiety, leading to a not very high mobility. The device fabrications of all the eight materials are currently assisted by Tobin J. Marks group at Northwestern University, where the solution process and vacuum deposition will be examined. Hopefully, better mobility and easier fabrication will be obtained in the future. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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