The studies of hysteresis characteristics in pentacene-based organic field-effect transistors
| Autor: | Tzung-Da Tsai, 蔡宗達 |
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| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 This study presents on hysteresis of pentacene-based organic field effect transistors (OFET) with pentacene as active layer, gold as source-drain electrodes, and polyvinyl alcohol (PVA) as dielectrics. By reducing water solvent residual in PVA, hysteresis of OFETs were observed gradually. For the hydroxyl groups on PVA are highly polar, they influence an OFET acting with hysteresis. A dielectrics model was suggested to illustrate hydroxyl dipoles affect output characteristic of an OFET, and it was validated with Fourier-transform Infrared spectroscopy, Capacitance-voltage measurement, and transfer characteristics under different bias periods. This study provides insights of OFET hysteresis, develops device structure and fabrication approaches, and evaluates the feasibility of OFET toward memory application. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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