Researchers at the University of Turku have demonstrated a solid-state organic laser microcavity fabricated entirely by solution processing. “Our main result is that we can make a complete solid-state laser microcavity using only solution processing. These polaritons allow the device to operate as a polariton laser. “The exciting part is that we are not only making a simple solution-processed structure but also a working solid-state polariton laser. The researchers believe that the new platform can make organic laser and polariton research more accessible.