Popis: |
Motivated by the energy- related applications of nanomaterials and nanohybrids, the energy storage capacity of AlNi and AuZn nanohybrids is thoroughly investigated by density functional theory. Devices formed with the crystals, separated by some distance in the atomic range, are simulated in local density approximation. The capacitance of the capacitors is found by two different methods. The capacitance of the two nanohybrids shows difference in their value and nature in both the two methods. Negative capacitance is observed for AuZn nanohybrid. In this chapter, transmission spectra are also calculated by extended Huckel method that reveals very low transmission of the hybrid structures. Much improved transmission is obtained for the interface formed by the two structures. The high electrical conductivity of the interface is another remarkable result of the investigation. |