Preliminary study of hall effect of chitosan thin film with salycylic acid

Abstract

Today, chitosan have become the attraction to among the researchers as important source to produce the voltage. The main purpose of this project is to study the preliminary of Hall Effect for the thin film system. The thin film consists of salicylic acid was prepared. The value of concentration of salicylic acid was varied from 0 wt.% to 50 wt.%. Another sample containing chitosan and varied salt concentration plus 1 molar of MnCh also have been prepared. This experiment involved the instrument like Electrochemical Impedance Spectroscopy (EIS), Scanning Electron Microscope (SEM), Four Point Probes (FPP) and Hall Measurement System. The value of resistivity, magnetic field and conductivity was determined in order to assure the Hall Effect value can be calculated. From the EIS measurement, the value of conductivity in range 9.24 x 10-4 to 1.82 x 10-6 (Omr1• From the FPP measurement that was obtained in the range of 6.97 x 10-3 to 5.79 x 10-6. From SEM measurement thickness was obtained in the range 32.35µm to 42.40µm. By applying the value of thickness from SEM measurement, the value of estimation of hall voltage can be calculated.