Sub-nanosecond time resolved transient photoconductivity in anthracene

Abstract

Observations are reported of current, time resolved to 800 psec, in a measurement of transient photoconductivity in anthracene. These measurements indicate that the transient currents associated with photogeneration, polaron formation, and hot carrier motion are over within 800 psec of the light illumination. These measurements also have revealed a new transient photoconductivity effect, a current peak whose duration equals the duration of the laser illumination. Possible origins of the current peak are considered.