초록 |
As the demand for ubiquitous electronics is largely consumer driven, factors such as disposability, low cost and massive market applications are becoming more important than ultrapowerful microelectronic devices in some fields. Therefore, macroelectronic devices that are light, inexpensive, flexible, disposable, and minimally sufficient to execute the simple task at hand are in high demand. Inexpensive radio frequency identification tags, flexible displays, disposable cell phones, and e-papers are among the potential applications. To make practical use of these applications, their components should be prepared using simple and inexpensive means such as printing technologies that do not require using high vacuum deposition or photolithography facilities. Therefore, their active materials such as plastics and small molecules should be used instead of silicon or metals. We will describe here a method en route to printed all-nanotube transistors where the nanotubes are adjusted in their electronic properties through functionalization, and can thereby serve as the gate, source, drain, and channel layer of thin film transistors (TFTs). |