n-Ink offers several high-performing n-type ink formulations that are compatible with existing solution-deposition processes for Printed Electronics, to enhance the performance of existing Internet of Things and Bioelectronics, and energy. The current technology relies solely on p-type (positive) conducting inks, but to make this technology more efficient and high-performing, n-type (negative) inks are necessary as a complement to p-type ink functionality, mimicking CMOS technology. We, at n-Ink, have invented, patented, and developed a sustainable approach for our n-type inks, including sustainable synthesis protocols.