Abstract
The surface plasmon resonance effect of gold particles on photocurrent amplification was examined for the bilayer structured organic photoreceptor cell consists of titanyl phthalocyanine (TiOPc) and N,N'-Diphenyl-N,N'-di(m-tolyl) benzidine (TPD). On/off ratio of the device was improved of one-order of magnitude by forming the gold ultra thin layer between the TiOPc layer and ITO electrode. In addition, the voltage, which gives the maximum on/off ratio, was also decreased down to ca. 3 V. The use of gold particle film as a photovoltaic layer is an effective method for fabrication of organic photoreceptor device to improve the S/N ratio and reduce the driving voltage.
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