Breakthrough Ink 'Recipe' for Printing Next-Generation Laser Devices

An international research team led by the University of Cambridge  has developed Black phosphorus (BP) ink (a material similar to graphene) that is compatible with conventional inkjet printing techniques, making possible – for the first time – the scalable mass manufacture of BP-based laser and optoelectronic devices. The research team optimized the chemical composition of BP to achieve a stable ink through the balance of complex and competing fluidic effects. This enabled the production of new functional laser and optoelectronic devices using high-speed printing. The development brings "large arrays of 2D material-based light sensors closer to reality," says lead researcher Guohua Hu.