Carbon Nanotubes Reinforced Conductor for Flexible Electronics

Autor: Huei-Lin Huang, 黃惠琳
Rok vydání: 2008
Druh dokumentu: 學位論文 ; thesis
Popis: 96
Using Carbon Nanotubes (CNTs) as the reinforcements in a composite are considered to form ultra strong and stiff material by CNTs’ mechanical property. This thesis focus on the fabrication and characterization of flexible conductor by the composite of mixing CNTs and silver. The mixture was then printed on plastic by screen printing method indifferent patterns. After we fabricated such conduction lines, we measured their electrical properties to stress variations. At first, we analyzed the resistivity of the composite by mixing different ratios of CNT and Ag paste (by volume %). The results indicate that good conductivity can be maintained when 50% of CNT incorporated in the matrix. It is known that the conductive line suffered very large stress when the flexible substrate was bent. The following experiments performed the additional CNTs embedded in the conductive line can provide better performance to enhance the structure stiffness, when the substrate suffered horizontal tension and bending stresss. On the other hand, we measured the resistivity of the metal line in the airtight space with different temperature, the results show that good stability to temperature by adding CNTs in the conductive line. We also test the durable conductor by integrated CNTs in the fabrication process which exhibited better reliability and conductivity to the conventional flexible screen printed conductor .
Databáze: Networked Digital Library of Theses & Dissertations