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Graphene in spaceships of the future

14.06.2015

Scientists from Nankai University (China) found that when graphene is exposed to a laser beam, the material begins to move spontaneously.

During the experiments, the researchers made a "sponge" from several sheets of graphene and placed it in a vacuum. By bombarding it with laser beams of different wavelengths and intensities, the graphene was moved 40 centimeters.

After that, Chinese scientists took an ordinary lens, with which they focused sunlight on a graphene "sponge". The energy of the sun was also quite enough to make the material move.

According to scientists, when absorbing energy from the sun, graphene emits electrons that cause it to move in the opposite direction of light. So far, it remains a mystery why the particles move in a strictly defined direction, and not in a random order.

This property of graphene can be useful in the development of promising spacecraft that could move using only the energy of sunlight.

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