| 초록 |
Solution-processed semiconducting materials have been intensively investigated as a low-cost route for displays, sensors, and next generation electronics on a flexible platform. In this presentation, we describe a versatile photochemical method to activate the precursor-based oxide semiconductors for thin-film device and deactivate the functional organic films for precise patterning. This low-temperature photochemical process enables us to fabrication the high-performance thin film transistor on an ultra-flexible thin film for wearable device application. The nature of high energetic photon irradiaion of our approach also can be used to pattern the organic materials such as the small molecule, polymer, and carbon-based materials. Using the synergetic combination of our approach, integration of spatially isolated organic sensing devices and metal oxide devices via the alternating photochemical exposure was also demonstrated for in-pixel signal amplification capability and photodetectivity up to 1.9x1014 Jones. It was also exhibited that photochemically modified dielectric layer precisely placed the organic crystals at the predefined device locations under the solvent-vapor rich environment. The details of photochemical process for diverse electronic applications will be presented at the conference. |
