Researchers from the University of Illinois at Urbana-Champaign and Dow Electronic Materials in Marlborough, Mass., have recently published research in the journal Science. They showcased new colloidal semiconductor nanorods that allow a single device to generate electromagnetism while generating a photoelectric effect, converting electroluminescence into light energy.
These nanorods less than 5 nanometers in diameter are composed of three semiconductor materials, one of which emits and absorbs visible light, and the other two which control the flow of charge within the first material. The three materials work together to make the LED panel sense external light and make brightness adjustment while emitting light.
Since the LED switches between the illuminating and sensitizing functions at a very fast frequency, the eye cannot recognize the switching, so it appears to be always bright.
At present, researchers have successfully demonstrated the relevant functions with the new red LED array. They are trying to combine the red, blue and green LEDs to realize the color array display, and at the same time improve the light absorption capability of the LED by adjusting the composition of the nanorods.
Source: High-integrated report Editor: Deng Dawen
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