Indonesia Conference Directory

Corresponding Author
Agus Setyo Budi

Institutions
Physics Department, Universitas Negeri Jakarta

Abstract
In this research, we analyze the conductivity properties of ZnO nanorods was grown by using a hydrothermal method. We use the I-V characteristics test to determine the conductivity properties. We apply voltage in the range of 1–30 volt. The result from the I-V characteristics shows that the greater value of the applied voltage produces a decrease of the resistance value. The resistance value obtained at a given voltage of 1 volt is 7.8 kOhm, while at a voltages of 30 volts is 0.5 kOhm. The I-V curve profile indicates that interface between ZnO nanorods and Au-electrode shows a Schottky barrier characteristics.

Keywords
zno nanorods, i-v characteristics, hydrothermal nanorods

Topic
Material Science

Link: https://ifory.id/abstract/kqej79LNpBGb

Corresponding Author
Riser Fahdiran

Institutions
Department of Physics, State University of Jakarta, Jakarta, Indonesia, 13220.

Abstract
We investigated the thermodynamics and structural change of Copper thin film irradiated by ultrafast high intensities laser. The film has dimension of 10 nm x 10 nm in lateral periodic condition and thickness 20 nm with free condition. The system is given such amount of laser energy above ablation threshold. The dynamics of the trajectories of atoms are followed using molecular dynamics simulation. At the beginning of the simulation, the system is compressive but followed by tensile pressure that break the system. Temperature and pressure properties indicated that the system are brought to non-equilibrium state. Structural analysis on the system as a function of time shows the phase change of the material, where at the end of simulation its already evaporated.

Keywords
Copper, laser ablation, structure, thermodynamics

Topic
Material Science

Link: https://ifory.id/abstract/RdNXDEUvCtF7