Carrier Generation Process in Poly(p-phenylene vinylene) by Fluorescent Quenching and Delayed-Collection-Field Techniques

The carrier generation process in poly(p-phenylene vinylene) (PPV) has been investigated by using field-induced fluorescent quenching and delayed-collection-field techniques under pulsed illumination. Relative photoresponse and fluorescent quenching have been measured at electric fields of up to 300 V/μm. The results demonstrate a linear relation between fluorescent quenching and photoresponse at high electric fields, indicating that almost all …