Studies Academician Jaures Alferov and some foreign scholars have shown that if you make a very thin semiconductor structure with alternately varying properties, it is possible accumulate electrons in a strictly defined areas and thereby increase the efficiency of converting electrical energy into light. More – more. If at first considered, though tiny, yet the area crystal, then soon went through already on individual atoms. Flashed such intricate concepts such as 'quantum well', 'superlattice', 'two-dimensional fluid' Physics once again learned about semiconductors 'almost all' and technological learned to do more than 'all'. Sooner or later, 'the period of primitive accumulation' ends – in the early nineties, a little known Japanese firm Nure threw the LEDs on the market ten times brighter than all of them predecessors. And yet received all the colors are especially lacking: lush green, blue, purple, white, finally. Semiconductor palette flashed all the colors of the rainbow.
LEDs are 'out' from the premises on the street, without fear, as before, the solar illumination. In a short time, semiconductor lights subdued center of Moscow (they are easily recognized by its purity and homogeneity of the glow) and went to the cities and villages of Russia. Of course, the traffic light – this is not lighting, but since 1998 the Americans from the 'Hewlett Packard' began to produce LEDs suitable for illumination of the car. Their light output is better than an incandescent bulb, and resource improvement is far from exhausted. Semiconducting nature of the new LEDs and determines the unique advantages. Firstly, it is very small dimensions, strength, ability to light up the voltage of only a few volts, almost unlimited durability. And besides, the brightness of the emission of any very pure color, simple control of the glow.
led lights can be installed in any, even if difficult, place, they are absolutely safe, they do not need bullets for screwing soldered – and forever. While LEDs are not threatened to incandescent bulbs in our homes. But it is very likely that in the near future it will happen. And then our charges for electricity will simply be symbolic. And the designers of our future homes will be an excellent tool for the realization of their creative imagination, pity, though, apparently, die out crystal chandeliers, this symbol of strength and warmth of family ties.