Silicon has served us well over the last 55 years since the first integrated circuit was invented at Texas Instruments. Today, the symphony of chemistry, physics and engineering required to orchestrate the production of 22nm node chips in the latest Intel or TSMC fabs represents the pinnacle of 21st century technology. As great as Silicon may be as the driver of today's digital world, for many applications its properties make it a terrible semiconductor choice. For example, its electron bandgap is not compatible with light emission for LEDs, while its electrical and thermal properties make it an extremely inefficient choice for power electronics. Fortunately, the periodic table has come to the rescue with a vast array of compound semiconductors waiting to fill the gap.