Rus Articles Journal

How “bulb“ with efficiency more than 100% was created?

A as law of energy conservation? It what, does not work any more? Physical laws exchanged? And in general, as far as I know, cannot be in the nature of the perpetual motion machine!

Quietly! In the experiment published in the scientific magazine Physical Review Letters, the law of energy conservation was not broken in any way. And not the habitual glow lamp, but the device, by the principle of a luminescence similar at the same time on a semiconductor light-emitting diode and the semiconductor laser was “bulb“ there.

The unusual effect of excess of 100% of efficiency was gained only “at the lowest power levels of radiation and at the same time at rather high temperature of the device“.

In laboratory of electronics of Massachusetts Institute of Technology where these experiments were made, scientists and students constructed a semiconductor light source. The new radiator works to similarly usual light-emitting diodes, external electric excitement generates in the semiconductor device couples an electron - a hole which generate photons, i.e. light seen by a human eye. So far anything sensational and stunning. But this light source showed in certain cases so-called radiating efficiency (the relation of power of the brought electric current to light radiation power) in 230%! Light was given more than twice more, than it was brought electricity! This also became the sensation reason in the scientific and pseudo-scientific world.

Further the device began to be cooled strongly (here and action of conservation law, the nature it was not succeeded to deceive nevertheless) and the efficiency became less than 100% again. And still today it is the most effective source of conversion of electric current in visible radiation.

Why it occurs? And that is why. The radiator from Massachusetts Institute of Technology to which and names - that did not think up yet converts into the radiation not only electricity from the power supply, but also energy of warmth of environment. And the ambient temperature is higher, the less electricity is necessary for maintenance of a luminescence of this peculiar “bulb“. And at direct calculation of efficiency (the electricity power relation to radiation power) it appears sometimes above unit.

However, there is so strange combined operating mode only at very low level of radiation, and also at small values of current and tension. So far the account goes only on pikovatta, trillionth shares of watt. In the experiment described above the power of 30 picowatts was brought to a semiconductor crystal, and the maximum radiation measured during experiment made 69 picowatts. At the same time the crystal was cooled almost on 10 degrees Celsius.

So before introduction in industrial execution “diodes from MIT“ as this miracle in the scientific periodical press is called, it is very far still so far. Especially as “Ilyich`s bulb“, i.e. a lighting source.

However creators of the device believe that its improvement can lead to emergence not so much of the LED lamps combining a bulb and the conditioner rolled into one, how many an effective way of cooling of the big integrated circuits making a basis of all modern semiconductor electronics. You watch what trick: the electricity joins and each working chip shines itself with sparks and in passing cools itself. I.e. function of the indicator and conditioner rolled into one, without expenses of electric energy, all the same works. Well and, as a result, decrease in costs of ventilation and other types of cooling of this most difficult electronics.

The market of big integrated circuits which needs effective cooling stepped for one trillion dollars for a long time, and it is no wonder that to “diode experiments of MIT“ the private investors who are just hotly wishing to spend the (and strangers too) money for continuation of similar experiments already queued.