Built by the world’s first transistor from a single molecule
The team of scientists from Yale University (Yale University) and Kvandzhuyskogo Institute of Science and Technology (Gwangju Institute of Science and Technology), South Korea, have successfully created the first transistor of a single molecule. Researchers have demonstrated that adherence to the gold contacts of the benzene molecule behaves like a silicon transistor. Different energy states of atoms combining controlled voltage applied to the contacts. In turn, the administration has allowed states to change the current flowing through the molecule.
Computers Internet blog says that this is similar to scooping the ball over the hill, if we assume that the ball is analogous to electrical current, and the height of the hill – the energy states. Researchers were able to adjust the height, passing current or stopping it. The work is based on a previous study by Reed, held in the 1990’s, when it was proved the possibility of placing a single molecule between the electrical contacts. Since then, he, together with Professor Taki Lee (Takhee Lee) developed additional techniques allowed to “see” what happens at the molecular level. The key elements were also making contacts, such small scale, identification of ideal molecules for the experiments and determination of their method of connection.
The molecules in the electronic circuits are of interest because conventional transistors of similar size yet can be done. But Reed stresses the purely scientific value of achievement – the practical application of technology in the form of high-speed molecular computers, if at all possible – is a matter of decades of research. Nevertheless, a huge part of the work already done and shown that in principle the possibility of using molecules with electronics.
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