Energy efficient LEDs (light emitting diodes) have begun to replace many types of lighting both indoor and outdoor. A key reason for the rise of LEDs has been materials research that greatly improved the quality and intensity of light achievable with these devices. But those materials must be handled with very high levels of precision, including surfaces that are as defect-free as possible.
Click here for original story, Research on light emission from black phosphorus hints at new applications
Source: Phys.org