➀ Scientists from Cornell University and the Polish Academy of Sciences have developed a method to create gallium nitride-based LEDs and power transistors on the same IC by utilizing both sides of the wafer and exploiting the unique properties of GaN. ➁ The researchers overcame challenges in transistor fabrication to ensure the devices remain functional. ➂ The technology has potential applications in micro-LED displays and could lead to the convergence of photonic, electronic, and acoustic devices.