According to the American physicist organizational network Jan. 5 (Beijing time) reported that U.S. researchers are developing a new solar cells, carbon nanotubes and DNA by using other materials, the battery can be like natural plants, like photosynthesis system self-repair, thus extending battery life and reduce manufacturing costs.

    New design using the single-walled carbon nanotubes unusual electrical properties. Can contain a layer of carbon nanotubes to hundreds of layers of graphite sheet, only one layer of graphite, called single-walled carbon nanotubes, the diameter about 1.5 nm or so, is an ideal nano-channels, a single opening walled carbon nanotubes can be used as "electric motor" and "generator." Scientists in the experiment will be a single walled carbon nanotubes as a "molecular wire catch photoelectric pool." The researchers explained that the new cell, the main function of carbon nanotubes is fixed DNA. Program for DNA scientists, have allowed a specific nucleotide sequence, so that it can recognize and attach dye. Once the DNA dye molecules identified, the system began to self-assembly, complete the dye update, just like plants at all times during the self-regeneration.

    Based on this innovative idea developed photoelectrochemical cells, as long as continuing to add new dye, we can continue to work full steam ahead. Through chemical processes or by adding a new nucleotide sequences of different DNA fragments, shot down the old dye molecules, and then add a new dye towards the molecule, replacement of old and new dyes can be achieved.