DNA分子材料电子输运研究进展

Research Progress of Electronic Transport in DNA Molecule Materials

由于DNA分子在纳米电子学、分子电子学中具有广泛的潜在应用,对DNA分子中电子输运特性的研究备受关注。然而,目前对DNA分子电子输运特性的研究还未形成统一认识。阐述了DNA分子中的电子输运理论、实验研究进展。实验方面,DNA分子呈现出绝缘体、半导体、导体的各种可能结果都有报道;理论方面,主要形成了2种方法,一种是第一原理计算,另一种是基于哈密顿量模型的计算。

Due to the potential applications in nano-electronics and molecular electronics, the electronic trans- port properties of DNA molecule materials have attracted considerable attention of scientists. However, a consensus on the electronic transport properties of DNA molecules has not yet been established. In this paper, the theory and ex- periment research developments in electronic transport of DNA molecules are outlined. Direct charge transport measurements indicate that the DNA molecules may be insulators, semiconductors, or conductors. Theoretically, both first-principles calculations and model based Hamiltonians are extensively adopted to describe DNA molecules and to interpret such diversity of experimental results.