The Performance Improvement of Ink-jet Printing Organic Thin Film Transistor by Blending Organic Semiconductor and Nano Carbon Particles

• Main Authors: Iu-Ren Chen, 陳昱任
• Other Authors: 吳文中
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/72931368155986283892

碩士 === 國立臺灣大學 === 工程科學及海洋工程學研究所 === 98 === In recent years, flexible electronics gradually make a figure in technology fields. To illustrate, organic materials play an important role in flexible electronics. More and more products using organic materials have been developed, such as the screen of many smart phones, the application of active matrix organic light emitting diodes. Organic materials are usually produced by solution process on the soft substrate. Ink-jet printing is a common solution process, which has low cost, high maneuverability and other advantages. In this thesis, with the combination of the semiconductor process and ink-jet printing process system, two kinds of organic transistors are made under the circumstance of environmental control, surface treatment, and temperature control. One used silicon wafer as the substrate, and then was printed with the semiconductor material, P3HT, on the wafer. The other was all ink-jet printing organic thin film transistor, which was fabricated with organic polymer materials in each layer by ink-jet printing process. The performance of its devices has achieved world class standards. (On/off current ratio is 106 order, and the mobility is 5×10-3 cm2/V‧s) In the process of fabricating organic transistors, the performance of transistors was improved by blending the nano carbon particles into P3HT. The performance of organic field effect transistors was nearly six times higher, the performance of the organic thin film transistors was about five times higher.