Nankai University successfully developed "light" Graphene materials

Institute of chemistry, Nankai University, Yongsheng Chen, Professor and Tian Jianguo Professor of Physics Institute-led research team after 3 years of research, received a special kind of Graphene material, this material can be in a variety of light sources, including sun exposure-driven flight, its driving force is 1000 times more than traditional light pressure, "light moves" flight or possible.

In previous studies, scientists are trying to use "light pressure" gained momentum. "Light pressure" was shot on a body produced by light pressure. However, from the little driving force of pressure, cannot meet the load requirements of aviation and aerospace. Experts such as Professor Yongsheng Chen developed the Graphene material, various light, including sunlight, can effectively drive fly.

Reporters located in Nankai University's key laboratory of functional polymer materials, researchers have a weight of 4 milligrams of the shape of "sponge" pie-shaped three-dimensional material Graphene placed in vacuum tubes. In a different light "nudges", the "sponge" happened in a horizontal or vertical displacement, maximum distance can be up to 40 cm.

Yongsheng Chen says, this is due to the nature of Graphene's own electronic nature of this material a special formation of macroscopic structure. Macroscopic view, the material can be seen as consisting of numerous electronic separate sheets of Graphene by chemical cross-linking, and therefore overall, countless Graphene launches electronic micro-power and can observe the optical drive performance, this is completely different from the conventional chemical rockets.

The researchers, laboratory light sources are weak, such as lasers and Xenon lamp, outdoor found sunlight can also drive the Graphene material is moved, which means that no special requirements for driving light source and so can be used.

"This is what we learned so far run out for the first time the scientific community to promote a macroscopic object and macro-driven. "Professor Yongsheng Chen said, through quantitative measurement, the Graphene material force in the lighting conditions is thousands more than traditional light pressure. "By counting 500 kg load, if the drive arrays using the Graphene material, in theory, get the drive will allow it to reach at least 0.09 m/s acceleration. ”

SFU is an important tool for human exploration of the universe, while power sources has been way humans can't go farther. Almost all of aviation and space flight is driven by chemical, that is by spraying the burning chemicals to get the drive, direct drive-light flight is the dream of the scientific community and the aviation community for many years. (Xinhua Zhang Jianxin)

(Editors: UN654)
2015-06-19 22:08:34
China News Network