We present a report on a new capability for low temperature microscopy of organic
optoelectronic semiconductor materials. We may now perform photoluminescence (PL) and
conductivity measurements as a function of temperature on a microscopic level.
Testing confirmed the setup's ability to support microscopic measurements at pressures
of 10^-6 Torr and...
We examined sub-nanosecond time-scale charge carrier dynamics in crystalline films of a functionalized anthradithiophene (ADT) donor (D) with three different acceptor (A) molecules. A four-fold enhancement in ultrafast charge carrier separation efficiency was observed in D/A blends with a fullerene acceptor added at 7–10 wt. % concentrations, whereas a gradual...