Organic photodetectors based on phthalocyanine and fullerenes: dielectric properties.
Fabrication and characterization of organic photodetectors based on copper phthalocyanine and fullerenes are presented. We study current-voltage and impedance characteristics of the devices under dark and varied illumination conditions. The current-voltage characteristics in the reverse bias show little or no dark current and large photocurrent. The results show that photocurrent in the devices is associated with a decrease in bulk resistance and an increase in dielectric constant of the active material.
Sahu
Satyajit
S
Indian Association for the Cultivation of Science, Department of Solid State Physics, Jadavpur, Kolkata 700032, India.
Pal
Amlan J
AJ