Nanotechnology is a new method used in LED production, andis the future prospective of creating better performing LED lights with moreefficiency. These quality LEDs are a new generation of LED lights slowly appearingon the market.
Light emitting diodes are the most efficient and low-consumption lighting solutions available, as they turn the majority of power into light, and relatively little heat is emitted. The problem solved with nanotechnology is that approximately 20% of the emitted light is reflected back into the diode by the substance itself, thus losing this from the useful light. The rate of lost light depends on the substances included in the diode; however twenty percent is the general rate.
Nanotechnology, recently used by LED manufacturers for developing more effective LED lights, makes hundreds of thousands of nano-holes (microscopic holes, about 400 times narrower than a human hair) on the surfaceof the diode, allowing more light to be emitted by the LEDs.
Obviously, nanotechnology makes LEDs more expensive, so amajor objective of manufacturers was to find a cheap solution. Nano print technology seems to be the cheapest solution at present, which results in more affordable LED lights brighter and more effective. Since less light is trapped within the diode, the heat emission of the LEDs is also reduced with the technology, and Nano LEDs generally have a higher colour rendering index and a wider range of colour temperature.
Nano LED TV was one of the earliest applications of this lighting solution, where nanotechnology was used for a better quality picture. The first TV set with the technology is the LD LEX8, which used a full array of LEDs for backlight, and a panel of nano dots in front of it, making the light emitted by the LEDs more even. This new generation of LED televisions is still not a real LED display, but LED and LCD technology combined. With nanotechnology introduced into this combination, displayed pictures have more clarity, definition, smoothness; while the TV set itself is thinner than ever before (0.88 cm for the LG).
Nanotechnology, improving in a fast pace, brings new solutions in lighting regularly. One of the latest additions to LED technology was the illuminating nano-wires discovered accidentally by Babak Nikoobakht and Andrew Herzing in September 2010. These chemists, experimenting on growing nanowires horizontally, created a glowing wire with the addition of extra gold component to their mixture. The nano-wires created this way grew a”nanowall”, where current ran across lit up. The new creation was dubbed “nano-LED” by the researchers, and opens the possibility of adding light sources to microscopic or really small gadget.
Another fascinating finding was the cooperation of researchers at the Academia Sinica and the National Cheng Kung University inTaiwan. In their experiment, researchers implanted gold nanoparticles into leaves of a plant, and made the plant illuminate red light. Thisbio-luminescence is hoped to be further developed by creating trees with so-called bio-LEDs that could illuminate streets. These trees developed would have another advantage: photosynthesis during the night, thus absorbing CO2even when there is no sunshine.