I-V Characteristic of the Au Nanorod According to the Contact Materials

Abstract

The authors had manufactured the Au nanorod by electrochemical deposition (ECD) method. ECD method has many advantages that it can make the nanorod using the various materials having the dipole and it can make the hetero structure of nanorod. The nanorods have a good round shape with 7 mum height and 200 nm thick. To measure the characteristics of the nanorod, measurement electrode pattern is fabricated on the oxide layer. Electrode pattern was suggested to catch many nanorods randomly and materials of the pattern were used by the gold and titanium considering the work function of the nanorods. Basically, I-V characteristic of the Au was measured in the state of ohmic contact. The resistance of the Au nanorod was about 280 Omega and I-V curve was not measured over the 0.54 V. Confirming the optical microscope, Au nanorod was broken by the specific factor such as heating or excessive current.