Charge transfer of unconfined regions in quasi-periodic quantum wells : DNA nanostructure study

Abstract

AbstractThis study presents a quantum well model using transfer matrix to analyse the charge transfer characteristic in DNA nanostructure sequences. The unconfined state or unbound state above the quantum well are used to investigate the carrier behaviours in nanostructure of semiconductor. Similar analysis and simulations can be applied to the understanding of charge transfer in DNA nanostructure with sequence of periodic and quasi-periodic sequences. The model was validated with experiments using photoreflectance spectroscopy on nanostructure in semiconductor superlattice. In addition, the results published by the study of Thermoelectric effect and its dependence on molecular length and sequence in single DNA molecules[1] were used to compare with the simulations by the quantum well model. The results show agreement and can provide new insight into charge transfer and transport in DNA nanostructure with different types of sequences.