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, I will 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. Using this approach, integration of spatially isolated organic sensing devices and metal oxide devices via the alternating photochemical exposure enabled in-pixel signal amplification capability and photodetectivity up to 1.9x1014 Jones. It was also demonstrated 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 applications will be discussed. |