We are developing materials and methods for the printing of high-quality, inorganic semiconductor devices. By exploiting the reduced melting point and high solubility of nanoparticles, we have demonstrated that inorganic materials can be processed at plastic-compatible temperatures. Coupled with our efforts in sub-micron printing, microelectronic devices produced from nanoparticle-based inks promise to enjoy the processing advantages usually associated with organic materials while retaining the performance advantages typically associated with inorganic materials.