The new LED for the new generation of lighting system has become possible

According to Lei Feng reported that quantum dots have experienced an important moment. Last month, the first quantum TV Samsung officially shipped, the yield is gradually increased, which means that 15 years ago, the promise seems to have been achieved.

At present, Japan Hiroshima University researchers have silicon quantum dots for the development of a new type of light-emitting diode, and promised that it will be the lighting system in the history of a new revolution. These researchers have developed a hybrid inorganic / organic light emitting diode, it can emit blue white through quantum dots. This blue white LED will let us create a lighting system and a new generation of free light and display.

In "Applied Physics" (Applied Physics Letters) a research report published, researchers said that this kind of quantum dots and their voltage led only 6 volts can be light, light and effective amount of 78% from silicon quantum dots.

In order to let you know how to make these numbers is calculated, about 6 years ago, for the most advanced optical efficiency of quantum dot light-emitting diodes by more than 90% reduced to about 15%, because these dots must be loaded into a conductive organic thin film, to.

The Japanese researchers also said that their input and output power density generated by LED are reported before the equipment is 280 and 350 times. The input and output power density of quantum dots based on LED are so high, the reason is these levels to optimize the structure to a certain extent, so as to better achieve the carrier transfer.

The effective area of the actual physical dimensions of the LED can provide 4 square mm, which is 40 times the unique commercial LED. In addition, the thickness of only 0.5 mm LED.

Perhaps the most attractive aspects of the survey is that the new LED is produced through the process of solution method, this process requires at ambient temperature and pressure.

The manufacturing process needs to select a glass substrate, and then pour some conductive polymer solution and colloidal silicon quantum solution on it.

The Hiroshima University professor and research leader Ken-ichi Saitow added: "LED quantum dots as the next generation of LED has attracted a lot of attention. Despite its successful application still needs some breakthrough, but will be fruitful results of quantum dots hybrid LED achieved far beyond our imagination."