今天,超大规模集成化的电子元件尺寸不断减小.如果这种趋势继续下去,那末到下世纪中叶,单个元件的线度会只有1毫微米！这相当于每1000个原子一个信息比特(bit).对此,人们提出了有希望把复杂信息建立在分子中去然后用分子构成材料的方法.分子电子学所要解决的关键问题就是利 Today, the size of ultra-large-scale integration of electronic components continues to decline.If this trend continues, then by the middle of the next century, the individual components of the line will be only 1 nanometer! This equates to one bit per 1000 atoms, and people have come up with a promising way to build complex information into molecules and then use molecules to make up the material. The key issue molecular electronics is solving