HALL EFFECT OF POLYPYRROLE-CHLOROPHYLL BLEND THIN FILM: A SOLAR CELL
Keywords:
Polypyrrole, Chlorophyll, blend thin film, Hall effectAbstract
The blend of PPy with CHLO (PPy:CHLO) were prepared at 1:1, 1:5, 1:10, 5:1, and 10:1 ratios. The blend of PPy:CHLO thin films were deposited on Indium Tin Oxide (ITO) substrate (PPy:CHLO/ITO) by spin coating technique with different thicknesses. In this work, the Hall effect measurement (HEM) of PPy:CHLO/ITO thin film was investigated by HEM system in the square dimension of van der Pauw (vdP) geometry. From HEM study, the findings indicates that the samples were p-type of charge carrier, Hall voltage obtained only in mV which lies between 1.17 × 10-3 V to 2.02 × 10-3 V, Hall coefficient was 1.17 × 102 cm-2V-1 s-1 to 2.0 × 102 cm-2V-1s-1, the carrier concentration detected was between 3.125 × 1016 cm-2 to 5.330 × 1016 cm-2 and Hall mobility was between 33 cm2/Vs to 47 cm2/Vs. The results show that HEM of the samples was thickness dependence and this samples successfully investigated by Hall effect. These samples are suitable for electronic devices application.

