Abstract:
CdS/PMMA composite film with different amount of CdS was prepared by using the
solution cast technique. The composite films were characterized by Scanning electron
microscopy (SEM) to detennine the surface morphology of composite film, Fourier
transfonn infrared spectroscopy (FTIR) to monitor the fonnation bonding between
CdS and PMMA, Electrochemical impedance spectroscopy (EIS) to determine the
conductivity of composite film. The SEM revealed that CdS particle were
homogeneously dispersed in PMMA polymer matrix. With the amount of CdS
increasing, the size of CdS particles was increased and CdS particles became
agglomerated. FTIR spectra of CdS/PMMA composite film indicated the present of
sulfur in PMMA polymer at peak 841cm-
1
and the peaks at the range 1790 - 1675 crn-
1
and 1220 - I 095 cm-
have increased the intensity of absorption with increase the wt%
of CdS. The EIS result showed that increasing amount of CdS has resulted in
increasing the conductivity and increase in conductivity can also be associated to the
increase in the arnorphosity as shown by SEM studies.
