Electrically Driven Quantum Dots Achieve Bright Light Amplification

Scientists at Los Alamos have achieved light amplification with electrically driven devices based on solution-cast semiconductor nanocrystals, colloidal quantum dots. This breakthrough opens the door to a new class of electrically pumped lasing devices, highly flexible, solution-processable laser diodes that can be prepared on any crystalline or non-crystalline substrate without the need for sophisticated vacuum-based growth techniques or a highly controlled clean-room environment.